Synology Hybrid Raid Performance

Mar 16, 2012. Learn more aboutSynology Inc. For performance testing we used a Broadberry Data Systems rack server with dual 2. New features include Synology Hybrid RAID, encrypted shared folders and support for mobile surveillance. Synology reserves the right to replace memory modules with the same or higher frequency based on supplier's product life cycle status. No one has made a reimplementation of SHR (Synology Hybrid RAID, which is based on standard Linux MADAM and LVM). The failed drive can be "hot-swapped", i. 2 adapter card. CPU: Marvell Armada 385 88F6820 dual-core 1. Cons • Doesn't offer enough quality. 0 brings new technologies for storage, backup, and hybrid cloud. RAID primarily serves HDDs, though some SSDs use RAID as well, especially in hybrid arrays. RAID 1 -- really RAID 10 would only give you 16TB usable. Such a configuration benefits from RAID 0's high performance and RAID 1's fault-tolerance. Toggle Dropdown. As well as Synology's own Hybrid RAID system (SHR), the DS-413 supports standard RAID 0, 1, 5, 5+spare, 6 and 10 plus JBOD. 3 MB/sec reading and 135. Jan 17, 2012. Here what i got in the mail: thank you for the inquiry. RAID Type Min. Today's growing amount of unstructured data requires smarter and increasingly higher performance methods of storing, accessing, and collaborating. Enhanced the access performance of degraded RAID 6 by 70%. in), it is an ideal solution to your storage problems. The actual HDD size will be affected by the system partition and can vary between vendors, so the values calculated may differ from the actual results. My uses for the NAS have been, File serving, Network and Cloud backups (hourly), File syncing, remote access and as a Plex server. Same goes for pretty much any pre-built NAS manufacturer. RAID 10 has the second simplest level to calculate. Synology Hybrid RAID (SHR), Basic, JBOD, RAID 0, RAID 1, RAID 5, RAID 6, RAID 10. 84 MB/sec writing. Plus, using SSD RAID arrays can lead to further performance gains, so rather than being an. External ports: 2 x USB 3. The Synology DS620Slim ships with 6 Bays and supports all common RAID setup plus the proprietary ones (SHR - Synology Hybrid RAID). Synology's Hybrid RAID is an excellent way to manage the NAS server's internal hard drives. Number of Drives Required Tolerable Drive Failures Capacity. Synology Hybrid RAID. I bet someone could get freenas to run. today officially released DiskStation Manager 2. Synology Hybrid Raid SHR. Powered by Synology DiskStation Manager (DSM), in addition to standar d RAID arrays, Synology Hybrid Raid (SHR) allows users to create arrays using odd-sized drives while still maximizing the storage potential of the array. For those who do not require a RAID, JBOD is also available, allowing each drive bay to be individually utilized. SHR can combine different sized drives to create a storage volume with optimized capacity and performance, wasting less drive space and providing a more flexible storage. SHR will make use of the extra storage at the 2x4 + 2x8 scenario whereas. High Performance, High Data Availability With the Link Aggregation enabled, Synology DS1512+ delivers an average 194. RAID 5; Total amount of storage : 1,3To; When I have created this volume, Synology disks groups did not exist. Types of RAID. For the DS1815+, I would start out with a minimum of 3 drives for a RAID 5 array. Priced at Rs. In RAID-10, 2 HDDs/SSDs will form a RAID-1 group. Summary: A degraded, broken, or crashed Synology RAID is a critical situation that can lead to permanent data loss. Anything stored on Synology DS215+ can be accessed remotely using DS file. Then Synology created the SHR(1) = solution for "give me more space and I don't need care about details". I did that because the role of my DS1520+ is to provide redundancy for my RS1219+. Synology DS918+ is backed by Synology's 3-year limited warranty. First you need to download the XPEnoboot 5. converting from a single disk set. RAID arrays have been used for more than 40 years to increase the performance of hard disk drive (HDD) storage systems. Distributor / Channel Partner of Synology DiskStation, Synology RackStation & Lenovo Server offered by SGS Info Solutions Private Limited from New Delhi, Delhi, India. As an example, video production houses have a need for high-speed storage. Synology Hybrid RAID (SHR) technology Storage management is easy with Synology Hybrid RAID (SHR) technology. Plus, using SSD RAID arrays can lead to further performance gains, so rather than being an. If the volume is composed of two or more hard drives, data integrity is protected when one of the hard drives fails. The 4-bay DS-413 accepts SATA II drives up to 4TB in capacity. Synology Hybrid RAID or SHR, has been around for quite a while now, and though it has not made the big impact that Synology NAS' Btrfs file system has, it is still an increasingly popular choice for many when it comes to protecting their hardware and their data in a Hard Drive Enclosure. Synology Hybrid RAID. Oct 19, 2015 · The DS415+ supports Synology Hybrid RAID along with RAID 0, 5, 6 10 and JBOD. As with other. Synology Hybrid RAID (SHR) technology. The design of the DiskStation DS418 is strictly utilitarian. If you don't care about the intricacies of the traditional RAID system, or you want to mix and match HDDs of varying capacities, you may be interested in Synology Hybrid RAID. SHR provides 1 to 2-disk redundancy to safeguard your data during drive failures. Miniature in size, powerful in performance Your own personal private cloud. The double parity gives this RAID mode additional redundancy at the cost of lower write performance (read performance is the same), and redundancy overhead remains low. I was thinking either the Synology Hybrid Raid or Raid 1 which would be mirroring of the two drives. Synology has made some important changes to the update, which have been summarized below: USB hardware, including Wi-Fi and Bluetooth dongles, will no longer work. For performance testing we used a Broadberry Data Systems rack server with dual 2. The best part? It is powerful in terms of data safety and protection. SHR provides fault tolerance when there are more than two drives. 2) I felt more comfortable with a standard raid configuration. Synology uses a custom RAID setup called Synology Hybrid RAID (SHR)—seen as the selected option in the screenshot above—designed to keep your drives redundant. I'm stuck on whether to purchase another QNAP or go to Synology (DS1510+ vs TS-559pro) and the hybrid RAID is a nice differentiating feature. 2 SSD slots and Synology SSD Cache technology allow you to boost system I/O and application performance. Recommended for beginner users. The Synology DS620Slim ships with 6 Bays and supports all common RAID setup plus the proprietary ones (SHR - Synology Hybrid RAID). Für Synology bedeutet das, dass …. Synology Hybrid RAID (SHR) is a little more advanced than classic RAID levels. for SHR2 you won't see any usable space increase until. RAID-10 RAID-10 is a hybrid of RAID-0 and RAID-1. Here what i got in the mail: thank you for the inquiry. Synology Hybrid RAID (SHR) technology Storage management is easy with Synology Hybrid RAID (SHR) technology. Synology Hybrid RAID (SHR) is Synology's automated RAID management system. RAID 6 has two protection disks. This RAID calculator computes array characteristics given the disk capacity, the number of disks, and the array type. Internet & Network tools downloads - Synology Assistant by Synology Inc. RAID-10 has the read/write performance of RAID-0 and the data protection level of RAID 1. Number of Drives Required Tolerable Drive Failures Capacity. Synology Hybrid RAID. Use VMXNET 3 and use the default 16 GB disk (you'll delete that soon). This new model of 'play' series is equipped with Dual-Core CPU which bursts up to 2. The Synology DS620Slim ships with 6 Bays and supports all common RAID setup plus the proprietary ones (SHR - Synology Hybrid RAID). 2 SSD slots and Synology SSD Cache technology allow you to boost system I/O and application performance. 2 SSD adapter card Advanced Btrfs file system offering 65,000 system-wide snapshots and 1,024 snapshots per shared folder. Cette étape dépend essentiellement du nombre de disques durs installés. While both QNAP and Synology units support the traditional RAID levels (RAID 0, RAID 1 and RAID 5, RAID 6 and RAID 10), but Synology NAS units support something called Synology Hybrid RAID (SHR). Jan 17, 2012. Synology DiskStation DS1515+ Review. 5" SATA / SAS 6 Gbps HDD / SSD + 2x 2. Posted: Fri Sep 21, 2018 3:08 pm. Use the RAID calculator that Synology has to compare your scenario with RAID5 vs SHR. I understand the point of Synology - they found a hole in the market = Mass market doesn't understand about the redundancy, etc. This article is starting the familiar "series" approach touching on different areas:. 0 slot to be able to accommodate either a 10GbE network card, or a dual slot M. Synology quote Sequential Read/Write performance figures for the DS218j at 113MB/s and 112MB/s respectively. Synology DS218j: Specs. VG Feinbein. I'm using SHR-2. The DS1515+ has 5 drive bays, so in order to use all 5 drives for active storage, you would need to use need SHR (or another non-mirror RAID level, as mirror RAID requires even drive counts). Synology has made some important changes to the update, which have been summarized below: USB hardware, including Wi-Fi and Bluetooth dongles, will no longer work. As with other. RAID 6 is an upgrade from 5: data is striped at a block level across several drives with double parity distributed among the drives. Let us run a new set of tests to see how the DS918+ handles encryption. See full list on vswitchzero. IMHO, there is no real reason not to use the Synology Hybrid RAID. ) of HDDs/SSDs. In short, no. Synology DS220+ NAS Review. Overall solid results by the Synology DS918+. I had create some file-based LUN which provides flexibility but them bring poor performance. I bet someone could get freenas to run. You can choose to have RAID1 if that is more ensuring. Straight with Synology? Nope, it wants to reformat new disks. RAID 5 provides data redundancy by "striping" data and parity bits (additional data used for recovery operations) across three or more member disks. If you buy a DS412+ unit with hard drives preinstalled, chances are the hard drives are set up in Synology's Hybrid RAID, which is similar to RAID 5. I have been running it for about 8 months now and performance has been great, and I have had no problems. With NAS, the aim of RAID is to achieve data redundancy to reduce data loss and improve performance. ), so you would only be able to use 4 bays actively plus a hot spare. Number of Drives Required Tolerable Drive Failures Capacity. Given the power of NAS units in the 4-bay segment, performance is solid across the board. This is only available for RAID 5 volumes and it does decrease the amount of available system RAM but I never saw 100% utilisation on the DS414. 5" SATA / SAS 6 Gbps HDD / SSD + 2x 2. Introduction to Synology RAID F1 RAID F1 Performance In brief, RAID F1 provides the best balance between reliability and performance. RAID is a technology that is used to increase the performance and/or reliability of data storage. Synology Hybrid RAID: peculiarities of data organization and its recovery. Synology RAID Calculator offers you an estimate on the space utilization with various mixed HDD configurations and RAID types. Posted: Fri Sep 21, 2018 3:08 pm. External ports: 2 x USB 3. Now upload the VMDK file to the folder of the VM you created. , the failed disk can be swapped out for a new one without powering off the device. Synology DiskStation DS1515+ Review. Synology Hybrid RAID. In our testing, Hybrid RAID offers the same performance as RAID 5. I understand the point of Synology - they found a hole in the market = Mass market doesn't understand about the redundancy, etc. Given the power of NAS units in the 4-bay segment, performance is solid across the board. High Performance Dual Core CPU. 7 inches or 166 x 199 x 223 mm in height, width, and depth. Mar 16, 2012. I did that because the role of my DS1520+ is to provide redundancy for my RS1219+. It is recommended for those who need high reliability. 2 NVMe PCIe solid-state cache drives can. Today's growing amount of unstructured data requires smarter and increasingly higher performance methods of storing, accessing, and collaborating. speed of your business with 202. If the volume is composed of two or more hard drives, data integrity is protected when one of the hard drives fails. Because RAID 10 is a RAID 0 stripe of mirror sets, we have no overhead to worry about from the stripe but each mirror has to write the same data twice in order to create the mirroring. 3 MB/sec reading and 135. As well as Synology's own Hybrid RAID system (SHR), the DS-413 supports standard RAID 0, 1, 5, 5+spare, 6 and 10 plus JBOD. for SHR2 you won't see any usable space increase until. With SHR, you can use disks of different sizes in one unit thus maximizing usable storage capacity. The biggest benefits of using SHR is the ability to mix different size drives and still benefit from drive redundancy. Mar 06, 2019 · If you utilize RAID (and you should), it is always best to use the same drives with the same capacity. This is an 8 bay NAS and allows for varying types of RAID levels, including RAID 0,1,5,6,10 and Synology's Hybrid RAIDs SHR (RAID-5-like redundancy) and SHR 2 (RAID-6-like redundancy). Jun 9, 2021 - What is Synology Drive? Synology Drive Server is an all-round solution for file management, sharing, and synchronization. The RAID 0 configuration also has a much lower cost-per-gigabyte than a solid state drive. Inhaltsverzeichnis1 RAID 0, RAID 1, RAID 5 und Synology Hybrid RAID (SHR)1. Generally speaking, a RAID5 volume will have a slightly higher performance than SHR because of the LVM structure a SHR volume has. Let us run a new set of tests to see how the DS918+ handles encryption. Synology RAID Calculator offers you an estimate on the space utilization with various mixed HDD configurations and RAID types. Run virtual network functions, freely configure software-defined networks, and enjoy benefits such as lowered costs and reduced management efforts. I like the extra security, I also like that I don't have to worry about a drive failing while I'm rebuilding another one. Synology Hybrid Raid SHR. Synology uses a custom RAID setup called Synology Hybrid RAID (SHR)—seen as the selected option in the screenshot above—designed to keep your drives redundant. This cuts our write performance in half compared to a RAID 0 array of the same number of. - try to remove single drive from SHR and install it in a new non-SHR RAID (for repair, for check, for any reasons), no way, it will need to be formatted. As an example, video production houses have a need for high-speed storage. RAID 1 - mirroring (RAID 1 calculator) Diagram showing RAID 1 configuration. The Synology Hybrid RAID (SHR) allows mixing drives of different capacities without wasting any storage space. With your Synology Account, you can connect your NAS to our public cloud Synology C2 to build a hybrid-cloud storage of up to 1 TB during the preview and test periods. Synology Hybrid RAID (SHR) technology. The DS220j uses Synology's excellent DiskStation Manager (DSM) operating system, a web-based NAS OS that makes configuring and managing the device easy. Jetzt habe ich wieder Raid 5 und Speed ist wieder DEUTLICH besser. Synology Hybrid RAID (SHR) is a little more advanced than classic RAID levels. on the move, Synology provides a handy app, DS file, for popular mobile devices such as iPhone®, iPad®, Android™ devices and Windows Phone. Performance Vergleich Synology Hybrid vs Raid 5 Hallo, ich habe auch mal den Modus Hybrid Raid ausprobiert - vorher hatte ich Raid 5 bei meiner 412+ Ich habe nach 2 Tagen wieder auf Raid 5 gewechselt - die Performance ging unter Hybrid dermaßen in den Keller. However, if you have four drives or more, you can choose to use SHR-2, which reserves two drives for redundancy, similar to RAID 6. Le Raid, lui-même, est une. Apr 12, 2015. Für Synology bedeutet das, dass …. A Redundant Array of Independent Drives (or Disks), also known as Redundant Array of Inexpensive Drives (or Disks) (RAID) is a term for data storage schemes that divide and replicate data among multiple hard drives. If you buy a DS412+ unit with hard drives preinstalled, chances are the hard drives are set up in Synology's Hybrid RAID, which is similar to RAID 5. Synology also quotes speeds of 1,165MB/s and 527. 5MB/s (read and write, respectively). Synology DS220+ NAS Review. The future for data management, hybrid-cloud, and more. No one has made a reimplementation of SHR (Synology Hybrid RAID, which is based on standard Linux MADAM and LVM). We start our testing with Synology's SHR (Synology Hybrid RAID) which is unique to Synology's NAS units; this is the default RAID type used when setting up your NAS. In the case of disk failure, RAID 10 provides fast recovery thanks to data redundancy. Purchaser Experience. The last is Synology's Hybrid RAID, designed for quick volume creation. See full list on vswitchzero. Use VMXNET 3 and use the default 16 GB disk (you'll delete that soon). With your Synology Account, you can connect your NAS to our public cloud Synology C2 to build a hybrid-cloud storage of up to 1 TB during the preview and test periods. (Note, if you choose 'Better performance', SHR and SHR-2 aren't an option. Get a head start with Synology ® DiskStation DS713+ and its high-performance, straightforward approach to data-management and protection. You can choose to have RAID1 if that is more ensuring. 2 2280, and M. According to a Synology representative, the $599. , the failed disk can be swapped out for a new one without powering off the device. It also weighs a little over 5 pounds, or 2. High Performance, High Data Availability With the Link Aggregation enabled, Synology DS1512+ delivers an average 194. However, if you have four drives or more, you can choose to use SHR-2, which reserves two drives for redundancy, similar to RAID 6. today officially released DiskStation Manager 2. With dual core CPU and Link Aggregation, Synology DS713+ keeps up with the. Synology uses a custom RAID setup called Synology Hybrid RAID (SHR)—seen as the selected option in the screenshot above—designed to keep your drives redundant. Synology Hybrid RAID (SHR) is a little more advanced than classic RAID levels. The failed drive can be "hot-swapped", i. SSDs will almost always offer better performance, though, and a six-drive RAID 0 array means six points. Synology DS218j: Specs. As well as Synology's own Hybrid RAID system (SHR), the DS-413 supports standard RAID 0, 1, 5, 5+spare, 6 and 10 plus JBOD. RAID Type Min. • A complete, cost-effective 3-2-1 backup protection solution. RAID 1 vs RAID 0 - speed difference WLAN? lasse. 91MB/sec reading1. A single fan keeps internal components and drives from overheating. ), so you would only be able to use 4 bays actively plus a hot spare. Synology DS220+ NAS Review. DiskStation DS215+ Synology DiskStation DS215+ is a high-performance 2-bay all-in-one NAS server for small and medium business. This is an automated storage management system that is much similar to standard RAIDs. Synology DS1812+ vs QNAP's TS-659 Pro II deadeyes. Hybrid RAID arrays offer tremendous performance gains over standard HDD arrays at a much lower cost than SSD-only RAID arrays. Synology Hybrid Raid SHR. SHR allows users to create a flexible storage solution with optimized capacity and performance. This option creates an SHR (Synology Hybrid RAID) volume and will automatically optimize capacity and performance based on member hard disks. SHR provides 1 to 2-disk redundancy to safeguard your data during drive failures. They're much smaller, and certainly not visible from across the room. We start our testing with Synology’s SHR (Synology Hybrid RAID) which is unique to Synology’s NAS units; this is the default RAID type used when setting up your NAS. The DS213+ proved faster, scoring 64. SYNOLOGY-7-bay-Synology-NAS-server-for-Small-and-Medium-Business2-bays-on-base-expandable-to-7-with-DX517-DS720. This is an 8 bay NAS and allows for varying types of RAID levels, including RAID 0,1,5,6,10 and Synology's Hybrid RAIDs SHR (RAID-5-like redundancy) and SHR 2 (RAID-6-like redundancy). SHR is based on a Linux RAID management system and designed to make storage deployment quicker and easier than classic RAID systems. DSM is the unified operating system powering Synology data management solutions, and version 7. Number of Drives Required Tolerable Drive Failures Capacity. 78% 3 Hours and 41 min, but when i use this 2 command lines, it got faster, just remember, that you need to tweek you speed for the rebuild and what IT systems you are using. 5MB/s (read and write, respectively). The Synology DiskStation DS1517+ is a 5-bay NAS designed for encryption and intensive tasks. RAID is a standardised storage technology that allows you to either mirror or spread data across multiple drives, with various levels of increased performance or data redundancy (or both). for SHR2 you won't see any usable space increase until. For those who do not require a RAID, JBOD is also available, allowing each drive bay to be individually utilized. While both QNAP and Synology units support the traditional RAID levels (RAID 0, RAID 1 and RAID 5, RAID 6 and RAID 10), but Synology NAS units support something called Synology Hybrid RAID (SHR). Synology Hybrid RAID (SHR) is an automated RAID management system, designed to simplify storage management and meet the needs of new users who are unfamiliar with RAID types. #synology #nas #nasupgrade #nasHDD #seagate #ironwolf #wd #westerndigital How to easily add a new HDD to your Synology NAS. launched a series of SSDs built to meet increasingly demanding environments, such as virtualization workloads, high traffic volume database storage, and AI and HPC projects. Synology Hybrid RAID (SHR) is Synology's automated RAID management system. SHR is based on a Linux RAID management system and designed to make storage deployment quicker. ) Choose the type of RAID you want and click 'Next'. (Note, if you choose 'Better performance', SHR and SHR-2 aren't an option. Supported RAID types Synology Hybrid RAID, Basic, JBOD, RAID 0, RAID 1, RAID 5, RAID 6, RAID 10 Front Rear 1 Power Button & Indicator 2 Status Indicator 3 Alert Indicator 4 Alert Off Button 5 Drive Status Indicators 6 Drive Trays 7 Rail Kit Release Tab 8 PSU Fans 9 Power Ports 10 PSU Indicators 11 Console Port 12 PCIe Expansion Slot. This is an automated storage management system that is much similar to standard RAIDs. The Plex server is also my DVR. They use this:. Cette étape dépend essentiellement du nombre de disques durs installés. 1GbE Test Results Synology DS1618+ SHR. It is recommended for novice users because it will automatically deploy drives for the best interest of your storage space. Page 1 of 2 Synology. , the failed disk can be swapped out for a new one without powering off the device. SHR: Synology Hybrid RAID (SHR) is an automatic RAID management system designed by Synology. For back up onto. The double parity gives this RAID mode additional redundancy at the cost of lower write performance (read performance is the same), and redundancy overhead remains low. Maybe you were thinking of RAID 0 -- which has NO protection. Priced at Rs. RAID 10 is deployed in even numbers of 4 or more (4,6,8,10, etc. Like other NAS servers from Synology, the DS1511+ won't pose any problem for savvy users when it comes to setup, but others may. Sales Stats. I have a Synology DS211j and 2 old 2TB S-ATA HDD. The majority of its products are locked to a 24-month refresh cycle, and the time has come for the DS718+ to give way to the new DS720+. RAID Type Min. Supported RAID types Synology Hybrid RAID, Basic, JBOD, RAID 0, RAID 1, RAID 5, RAID 6, RAID 10 Front Rear 1 Power Button & Indicator 2 Status Indicator 3 Alert Indicator 4 Alert Off Button 5 Drive Status Indicators 6 Drive Trays 7 Rail Kit Release Tab 8 PSU Fans 9 Power Ports 10 PSU Indicators 11 Console Port 12 PCIe Expansion Slot. Synology SHR actually splits into SHR1 and SHR2 which means 1 drives or 2 drive redundancy. Today's growing amount of unstructured data requires smarter and increasingly higher performance methods of storing, accessing, and collaborating. Number of Drives Required Tolerable Drive Failures Capacity. So if you plan on buying bigger disks and are gonna do so gradually, SHR is the thing. 7MB/s overall in our small file test with the drives configured in Synology Hybrid RAID. Remember, SHR only works with Synology NAS robots at the day of writing this, Jan 17th 2018, as it is a patented software RAID technology programmed by that company. Synology DS918+ is backed by Synology's 3-year limited warranty. So just go with the good old RAID. Synology Hybrid RAID: peculiarities of data organization and its recovery. Synology offers a RAID alternative, SHR, which operates slightly different than a standard RAID. However, if you have four drives or more, you can choose to use SHR-2, which reserves two drives for redundancy, similar to RAID 6. In our tests we will find out if the DS412+ manages to achieve the performance levels that Synology claims, so stay tuned. Mar 06, 2019 · If you utilize RAID (and you should), it is always best to use the same drives with the same capacity. Anything stored on Synology DS215+ can be accessed remotely using DS file. I have a Synology DS211j and 2 old 2TB S-ATA HDD. So just go with the good old RAID. Synology Hybrid RAID (SHR) is Synology's automated RAID management system. New features include Synology Hybrid RAID, encrypted shared folders and support for mobile surveillance. Today's tested model NAS unit has five HDD bays (hot-swappable) that are Synology Hybrid RAID (SHR), Basic, JBOD, RAID 0, RAID 1, RAID 5, RAID 6, RAID 10 compatible. Jan 17, 2012. 1GbE Test Results Synology DS1618+ SHR. Synology Hybrid RAID. External ports: 2 x USB 3. 78% 3 Hours and 41 min, but when i use this 2 command lines, it got faster, just remember, that you need to tweek you speed for the rebuild and what IT systems you are using. 0, USB, 88 x 430. Synology Hybrid RAID (SHR) technology Storage management is easy with Synology Hybrid RAID (SHR) technology. Raid 10 is always referred to as raid 10 never as 1+0. this mode is called Synology Hybrid RAID. Synology Hybrid RAID: peculiarities of data organization and its recovery. Developers designed RAID to improve redundancy and performance in storage systems. Although Synology’s Hybrid RAID sounds appealing, I would only consider it for an environment with different capacity drives. EDIT: Another thing I will say is that docker compose is not supported IIUC, so just watch out for that if your configuration depends on that (like. RAID can be designed to provide increased data reliability or increased I/O performance, though one goal may compromise the other. The future for data management, hybrid-cloud, and more. Jetzt habe ich wieder Raid 5 und Speed ist wieder DEUTLICH besser. Synology DS1621+ is a powerful and compact 6-bay network attached storage solution designed to store and protect critical data assets. I was thinking either the Synology Hybrid Raid or Raid 1 which would be mirroring of the two drives. 3 MB/sec reading and 135. It is for users who do not care for and do not want to acquaint themselves with the finer aspects of various RAID levels. Toggle Dropdown. The Synology DiskStation DS1821+ NAS enclosure is powered by a 2. ), so you would only be able to use 4 bays actively plus a hot spare. SHR provides fault tolerance when there are more than two drives. 5MB/s overall in our large file test and 15. For the DS1815+, I would start out with a minimum of 3 drives for a RAID 5 array. With NAS, the aim of RAID is to achieve data redundancy to reduce data loss and improve performance. With a RAID50, you can get the performance increase in terms of read speed by (N-1)*K times, where N is the number of disks in each RAID5 group and K is the number of RAID5 groups forming a RAID0. 6GHz E5-2670 Xeons, 48GB of DDR3, a RAID-5 SAS array and Windows Server 2012 R2. The failed drive can be "hot-swapped", i. Synology RackStation RS819 4-Bay 3. 1GHz Intel. This article is starting the familiar "series" approach touching on different areas:. Synology quote Sequential Read/Write performance figures for the DS218j at 113MB/s and 112MB/s respectively. 35,239 (Amazon. Not sure why, as it's not conceptually difficult and the tools are already there. The future for data management, hybrid-cloud, and more. The DS-412+, then, is a four-bay standalone unit, produced in 2012, with an emphasis on performance. Sales Stats. The second command increases the stripe cache size which increases sync performance by allowing a larger cache to synchronise the read and write operations on the array. Use the RAID calculator that Synology has to compare your scenario with RAID5 vs SHR. They say that raid 5 is a bit faster then SHR. It is recommended for novice users because it will automatically deploy drives for the best interest of your storage space. but, by default, it comes with Synology Hybrid RAID or SHR. 1 GHz CPU with AES-NI support. According to a Synology representative, the $599. 99 MSRP is expected to drop down to $549. First you need to download the XPEnoboot 5. Synology Hybrid RAID (SHR) technology Storage management is easy with Synology Hybrid RAID (SHR) technology. For those who require RAID support, the DS418 supports RAID 0, 1, 5, 6, and 10, as well Synology Hybrid RAID and Basic RAID, each of which offers performance, data redundancy, or a combination of both. Synology®Announces the Official Release of DiskStation Manager 2. Actual HDD sizes can vary between vendors, and values calculated may differ from actual results. Synology DiskStation DS920+ SAN/NAS Storage System - Intel Celeron J4125 Quad-core (4 Core) 2 GHz - 4 x HDD Supported - 64 TB Supported HDD Capacity - 0 x HDD Installed - 4 x SSD Supported - 64 TB Supported SSD Capacity - 0 x SSD Installed - 4 GB RAM DDR4 SDRAM - Serial ATA Controller - RAID Supported 0, 1, 5, 6, 10, Basic, Hybrid RAID, JBOD. Please refer to Synology Storage Manager for precise data. Jan 17, 2012. Synology DS218j: Specs. 7 inches or 166 x 199 x 223 mm in height, width, and depth. SHR provides fault tolerance when there are more than two drives. Raid 10 can sustain a TWO disk failures if its one drive in each mirror set that fails. Not sure why, as it's not conceptually difficult and the tools are already there. Table 2 shows a brief overview of the different RAID types supported by Synology servers, including the minimum drive requirement, number of tolerable drive failures, capacity utilization, and their characteristics. With a RAID50, you can get the performance increase in terms of read speed by (N-1)*K times, where N is the number of disks in each RAID5 group and K is the number of RAID5 groups forming a RAID0. It supports RAID 0, RAID 1, RAID 5, RAID 6, RAID 10, JBOD, Basic, and two flavors of Synology's Hybrid RAID (SHR), which lets you mix drives of different capacities. The Synology DS620Slim ships with 6 Bays and supports all common RAID setup plus the proprietary ones (SHR - Synology Hybrid RAID). Today's growing amount of unstructured data requires smarter and increasingly higher performance methods of storing, accessing, and collaborating. Synology Hybrid RAID. 4 GHz Default/ Max. The writing performance is slower for RAID 1 but if one of the disks becomes corrupted, all data is available on the second disk, and you can replace the corrupted disk, rebuild the array, and after rebuilding, continue using RAID 1. speed under RAID1 configuration in a Windows environment. Supporting RAID 0, 1, 5, 6, 10 as well Synology Hybrid RAID and Basic RAID, each of which offers performance, data redundancy, or a combination of both. For those who do not require a RAID, JBOD is also available, allowing each drive bay to be individually utilized. Synology DiskStation DS413j. Tag archives: Synology Hybrid RAID Speeding up RAID migration on a Synology DS414 NAS I've had a Synology DS414 NAS for a few weeks now, this post is about how to change the default settings of mdadm, the tool used to manage software RAID, to speed up the process of migrating between RAID levels. In our testing, Hybrid RAID offers the same performance as RAID 5. Storage administrators can deploy RAID as hardware (controller card or chip) or software (software-only or hybrid). Powered by a new quad-core processor, DS918+ provides outstanding performance and data encryption acceleration along with real-time transcoding of 4K Ultra HD source contents. the overall write performance of the RAID volume. 5MB/s overall in our large file test and 15. SHR allows users to create a flexible storage solution with optimized capacity and performance. - try to remove single drive from SHR and install it in a new non-SHR RAID (for repair, for check, for any reasons), no way, it will need to be formatted. Mirroring is writing data to two or more hard drive disks (HDDs) at the same time - if one disk fails, the mirror image preserves the data from the failed disk. EDIT: Another thing I will say is that docker compose is not supported IIUC, so just watch out for that if your configuration depends on that (like. 5" SAS/SATA HDD/SSD, Intel Xeon D-1567 12-core 2. for SHR2 you won't see any usable space increase until. Feb 24, 2014 · Si vous disposez d'un NAS Synology, à l'installation, il est demandé de choisir le système RAID que vous souhaitez mettre en place. This is an automated storage management system that is much similar to standard RAIDs. The DS-412+, then, is a four-bay standalone unit, produced in 2012, with an emphasis on performance. Create a new VM as Linux - Other 2. While both QNAP and Synology units support the traditional RAID levels (RAID 0, RAID 1 and RAID 5, RAID 6 and RAID 10), but Synology NAS units support something called Synology Hybrid RAID (SHR). Let us run a new set of tests to see how the DS918+ handles encryption. Posted: Fri Sep 21, 2018 3:08 pm. Instead you can buy something like a DS1819 + and start out with just as many drives as you need. The actual HDD size will be affected by the system partition and can vary between vendors, so the values calculated may differ from the actual results. Synology DiskStation DS720+ is a compact network-attached storage solution designed to streamline data and multimedia management. Oct 31, 2018. Traditionally, your drives would need to be the same size, else storage space would be wasted as RAID takes the. Anything stored on Synology DS215+ can be accessed remotely using DS file. Thing is the conditions related to the original statement of 'slowness' (that came from a Synology engineer) Just started the setup, and not sure what raid volume to choose. Mirroring is writing data to two or more hard drive disks (HDDs) at the same time - if one disk fails, the mirror image preserves the data from the failed disk. ), so you would only be able to use 4 bays actively plus a hot spare. Synology DS220+ NAS Review. September 2010 DSM 3. 7 inches or 166 x 199 x 223 mm in height, width, and depth. 0 Front panel connectors: 0 RAID support: Synology Hybrid RAID, RAID 0 and. Raid 10 is always referred to as raid 10 never as 1+0. For those who do not need the benefits of a RAID, JBOD is also available. The read and write performance of RAID F1 is close to that of RAID 5 with minimum performance differences. SYNOLOGY-7-bay-Synology-NAS-server-for-Small-and-Medium-Business2-bays-on-base-expandable-to-7-with-DX517-DS720. A RAID system consists of two or more drives working in parallel. This cuts our write performance in half compared to a RAID 0 array of the same number of. Thing is the conditions related to the original statement of 'slowness' (that came from a Synology engineer) Just started the setup, and not sure what raid volume to choose. Synology Hybrid Raid (shr) Technology Storage Management Is Easy With Synology Hybrid Raid (shr) Technology. If the volume is composed of two or more hard drives, data integrity is protected when one of the hard drives fails. Here what i got in the mail: thank you for the inquiry. I like the extra security, I also like that I don't have to worry about a drive failing while I'm rebuilding another one. With RAID 1, you get redundancy where data is written twice across the drives, allowing you to sustain a complete hard drive failure and. IMHO, there is no real reason not to use the Synology Hybrid RAID. It was designed for demanding use-cases and serves reported transfer speeds of 450MB/s and 396. Synology RAID Calculator offers you an estimate on the space utilization with various mixed HDD configurations and RAID types. It supports RAID 0, RAID 1, RAID 5, RAID 6, RAID 10, JBOD, Basic, and two flavors of Synology's Hybrid RAID (SHR), which lets you mix drives of different capacities. The DS920+ supports the Btrfs and ext4 file systems and offers several RAID types, including Synology Hybrid RAID (SHR), Basic, JBOD, RAID 0, RAID 1, RAID 5, RAID 6, and RAID 10. NAS boxes are often configured to make use of RAID technology in order to provide reliability, performance and data integrity. Most of the NAS devices support RAID redundancy which is a great way to achieve reassurance that your files are being safe in the event of hard drive failure. Le Raid, lui-même, est une. Il s'agit d'un système de stockage de données proposé par Synology. in), it is an ideal solution to your storage problems. 18% second woot. Table 2 shows a brief overview of the different RAID types supported by Synology servers, including the minimum drive requirement, number of tolerable drive failures, capacity utilization, and their characteristics. I like the extra security, I also like that I don't have to worry about a drive failing while I'm rebuilding another one. See full list on pcmag. OBSOLETE - Replaced by DS-920+ in 2020 Plus Series 4-bay NAS for Offices and IT Pros Diskless 0 TB Supports RAID SHR, 0,1,5,6,10. (Note, if you choose 'Better performance', SHR and SHR-2 aren't an option. Just like the DS1817+, the Synology DS1618+ comes with a single PCIe 3. The abbreviation stands for either Redundant Array of Independent Drives or Redundant Array of Inexpensive Disks, which is older and less used. Shr Synology Redundancy Method Pros • Fast connection • Automated storage system • Great range. It supports RAID 0, RAID 1, RAID 5, RAID 6, RAID 10, JBOD, Basic, and two flavors of Synology's Hybrid RAID (SHR), which lets you mix drives of different capacities. As well as Synology's own Hybrid RAID system (SHR), the DS-413 supports standard RAID 0, 1, 5, 5+spare, 6 and 10 plus JBOD. Today's growing amount of unstructured data requires smarter and increasingly higher performance methods of storing, accessing, and collaborating. Synology Disk Station DS418 - NAS server - 4 bays - RAID 0, 1, 5, 6, 10, JBOD - RAM 2 GB - Gigabit Ethernet - iSCSI. VG Feinbein. À partir de 3 disques durs, vous pourrez mettre en place un système RAID 5 ou SHR (par…. Generally speaking, a RAID5 volume will have a slightly higher performance than SHR because of the LVM structure a SHR volume has. Installing up to two M. DSM is the unified operating system powering Synology data management solutions, and version 7. This cuts our write performance in half compared to a RAID 0 array of the same number of. 2 22110 form factors and is designed to provide consistent performance while maintaining low I/O latency. In the case of disk failure, RAID 10 provides fast recovery thanks to data redundancy. Introduction to Synology RAID F1 RAID F1 Performance In brief, RAID F1 provides the best balance between reliability and performance. It provides data redundancy if the volume is composed of two or more drives. Provides data redundancy if the volume is composed of two or more drives. Internal drives support Btrfs and EXT4 file systems, and any external drive you connect to the NAS via USB can use the Btrfs, EXT3, EXT 4, FAT, NTFS, HFS+, and exFAT file systems. Synology also quotes speeds of 1,165MB/s and 527. Synology Hybrid RAID (SHR) is Synology's automated RAID management system. The RAID Calculator on Synology's page show 24TB usable (6 x 4TB). (Note, if you choose 'Better performance', SHR and SHR-2 aren't an option. and set them up using the Synology Hybrid RAID system. A RAID system consists of two or more drives working in parallel. and many more programs are available for instant and free download. Once you start to add (or upgrade to) new larger drives, then, as I understand it, SHR will create a new RAID on the larger drives once you have enough of them for the required redundancy, i. Synology Hybrid RAID Hard drives can and do fail, and one of the biggest reasons to use a storage system with two or more drives is to allow for redundancy; that is, a drive can fail, and you won't lose any data. Types of RAID. 78% 3 Hours and 41 min, but when i use this 2 command lines, it got faster, just remember, that you need to tweek you speed for the rebuild and what IT systems you are using. Synology DS418 comes with a fast processor, delivering excellent data transfer speed, large storage volume management, and H. synology hybrid raid vs raid 5. 5" SATA HDD 2. Overall solid results by the Synology DS918+. Supported RAID Type - Synology Hybrid RAID (SHR), Basic, JBOD, RAID 0, RAID 1, RAID 5, RAID 6, RAID 10 HardDrives and Peripherals- only those listed on the Compatibility List are permitted. Scale up to 8 drives with Synology Expansion Unit RX418. Synology Hybrid RAID. For those who do not require a RAID, JBOD is also available, allowing each drive bay to be individually utilized. SHR: Synology Hybrid RAID (SHR) is an automatic RAID management system designed by Synology. The Synology DiskStation DS920+ is a 4-bay network attached storage device that delivers speedy performance and offers an great selection of optional server, backup, and productivity apps. It supports up to eight 3. Today's growing amount of unstructured data requires smarter and increasingly higher performance methods of storing, accessing, and collaborating. Chrome (Android 6. Outstanding 10GbE sequential performance at over 1,621 MB/s reading and 599 MB/s writing. 78% 3 Hours and 41 min, but when i use this 2 command lines, it got faster, just remember, that you need to tweek you speed for the rebuild and what IT systems you are using. Sure SHR is pretty proven, but it's just a personal preference of mine. They use standard Linux MD RAID. SHR is an automated RAID management system allowing you to easily create and expand storage volumes and migrate RAID types without requiring details on RAID. The actual HDD size will be affected by the system partition and can vary between vendors, so the values calculated may differ from the actual results. SHR provides fault tolerance when there are more than two drives. 2 SSD slots and Synology SSD Cache technology allow you to boost system I/O and application performance. In RAID-10, 2 HDDs/SSDs will form a RAID-1 group. Compatible drive types: 2 x 3. 1 GHz CPU with AES-NI support. I was using the Synology Hybrid RAID which I think is similar to RAID 5. Enjoy SHR 1D FT! I have, for over one year now. RAID 10, then, is a combination of levels 1 (mirroring) and 0 (striping), which is why it is also sometimes identified as RAID 1 + 0. Synology DS1618+ Review: The Right Blend of Price, Performance, and Features Synology's 2018 product lineup includes a new network-attached storage. It is recommended for novice users because it will automatically deploy drives for the best interest of your storage space. SHR allows users to create a flexible storage solution with optimized capacity and performance. You can choose to have RAID1 if that is more ensuring. I was thinking either the Synology Hybrid Raid or Raid 1 which would be mirroring of the two drives. 35,239 (Amazon. IMHO, there is no real reason not to use the Synology Hybrid RAID. Synology Hybrid RAID. RAID-10 has the read/write performance of RAID-0 and the data protection level of RAID 1. Synology Hybrid RAID setup. 2) I felt more comfortable with a standard raid configuration. on the move, Synology provides a handy app, DS file, for popular mobile devices such as iPhone®, iPad®, Android™ devices and Windows Phone. Compatible drive types: 2 x 3. Get Started - 10 GB Free. The RAID F1 parity assignment, compared with RAID 4, provides more IOPS. 18% second woot. But a single solid state drive (SSD) RAID array can offer performance which is comparable to many HDD RAID arrays, and is therefore often seen as an alternative to an SSD RAID array. I bet someone could get freenas to run. Synology Disk Station DS418 - NAS server - 4 bays - RAID 0, 1, 5, 6, 10, JBOD - RAM 2 GB - Gigabit Ethernet - iSCSI Starting Price CAD $599. The Synology DiskStation DS713+ is backed with Synology's 3-year limited warranty. Today's tested model NAS unit has five HDD bays (hot-swappable) that are Synology Hybrid RAID (SHR), Basic, JBOD, RAID 0, RAID 1, RAID 5, RAID 6, RAID 10 compatible. 1 GHz, 16 GB DDR4 ECC RDIMM, 10/25/40GbE, PCIe 3. Tag archives: Synology Hybrid RAID Speeding up RAID migration on a Synology DS414 NAS I've had a Synology DS414 NAS for a few weeks now, this post is about how to change the default settings of mdadm, the tool used to manage software RAID, to speed up the process of migrating between RAID levels. SHR provides 1 to 2-disk redundancy to safeguard your data during drive failures. In short, no. The Hybrid RAID level (SHR) in the Volume Creation Wizard is an automated RAID-management system exclusive to Synology. Jan 17, 2012. RAID 10 is deployed in even numbers of 4 or more (4,6,8,10, etc. Coming with USB 3. I'm using SHR-2. The release of less expensive NAS models along with the introduction of SHR in 2010 has contributed to the increasing popularity of Synology among home users and small businesses who became able to effectively store and share digital content without the need for thorough planning, performing any calculations or delving. OBSOLETE - Replaced by DS-920+ in 2020 Plus Series 4-bay NAS for Offices and IT Pros Diskless 0 TB Supports RAID SHR, 0,1,5,6,10. The RAID 0 configuration also has a much lower cost-per-gigabyte than a solid state drive. RAID Type Min. Not sure why, as it's not conceptually difficult and the tools are already there. For those who do not require a RAID, JBOD is also available, allowing each drive bay to be individually utilized. Synology DS918+ Raid 0 Synology DS918+ Raid 5 Synology DS918+ Raid 6 Synology DS918+ Raid 10 Synology DS918+ Raid JBOD. Synology's new DiskStation DS1515+ is a 5-bay NAS that houses up to 30TB of raw storage, a quad-core 2. (4 x 4TB + 4 x 4TB for the mirror). This article is starting the familiar "series" approach touching on different areas:. So just go with the good old RAID. In our testing, Hybrid RAID offers the same performance as RAID 5. 2) I felt more comfortable with a standard raid configuration. Synology Hybrid RAID (1-disk fault tolerance) JBOD, RAID 0/1/5/6/10 or Synology Hybrid RAID (2-disk fault tolerance) with RAID 0, you get no data redundancy but do get better performance and more storage. No job is too big or too small for the Synology DiskStation DS1821+ as it is a great "next step" appliance into the storage needs that most computer enthusiasts, developers, and. Synology quotes the DS216j with average read and write performance of 112. I did that because the role of my DS1520+ is to provide redundancy for my RS1219+. This is an automated storage management system that is much similar to standard RAIDs. I was using the Synology Hybrid RAID which I think is similar to RAID 5. Le Raid, lui-même, est une. Both DS918+ and DS1618+ are equal in SHR and 1GbE tests with very little difference in test results. This article is starting the familiar "series" approach touching on different areas:. See full list on vswitchzero. Hybrid RAID arrays offer tremendous performance gains over standard HDD arrays at a much lower cost than SSD-only RAID arrays. this mode is called Synology Hybrid RAID. The Synology DiskStation DS920+ is a 4-bay network attached storage device that delivers speedy performance and offers an great selection of optional server, backup, and productivity apps. You need a drive of the same size or larger than the smallest drive in your current pool. Running: Disk 1 4TB; Disk 2 3TB; Disk 3 2TB; Disk 4 3TB. Für Synology bedeutet das, dass …. If you utilize RAID (and you should), it is always best to use the same drives with the same capacity. Thing is the conditions related to the original statement of 'slowness' (that came from a Synology engineer) Just started the setup, and not sure what raid volume to choose. 5% to 95% RH. the overall write performance of the RAID volume. Anything stored on Synology DS215+ can be accessed remotely using DS file. New features include a revamped GUI supporting multi-tasking management, Windows ACLs, ext4, support for ONVIF and PSIA cameras, and IP cameras up to 5 MP. On the front, you will see all the light indicators. 5MB/s overall in our large file test and 15. Sysbench – random writes to a Synology Hybrid Raid-1 hard disk volume – no cache Here the performance of reads and writes scale up until they reach a thread count (simulating number of clients) of 8 for writes and 32 for reads. They say that raid 5 is a bit faster then SHR. Sure SHR is pretty proven, but it's just a personal preference of mine. The DS1821+ provides 8eight drive bays with the ability to expand to 18 with the use of expansion units 4. 265 video transcoding on the fly. So if you plan on buying bigger disks and are gonna do so gradually, SHR is the thing. I was thinking either the Synology Hybrid Raid or Raid 1 which would be mirroring of the two drives. 0, USB, 88 x 430. A Synology hybrid raid has a significant recovery time. Two built-in M. RAID 1 vs RAID 0 - speed difference WLAN? lasse. Synology DiskStation DS720+ is a compact network-attached storage solution designed to streamline data and multimedia management. Would highly recommend. How to use: To calculate RAID performance select the RAID level and provide the following values: the performance (IO/s or MB/s) of a single disk, the number of disk drives in a RAID group, the number of RAID groups (if your storage system consists of more than one RAID group of the same configuration) and the percentage of read operations. Then from DR point of view (still in line for mass market and SME) is guaranteed RAID1 with 2+ disks better than SHR (1): - SHR is slower than RAID1 - then make an impact to the RTO. I studied the manual and tried to google, but I can't figure out if that's possible at all. Synology Hybrid RAID (SHR) technology Storage management is easy with Synology Hybrid RAID (SHR) technology. The future for data management, hybrid-cloud, and more. This makes it especially suitable for users who are new to RAID technology. If a drive fails, the others will still work. • Sync tools to enable remote user workflows and speed collaboration across multiple locations. It supports RAID 0, RAID 1, RAID 5, RAID 6, RAID 10, JBOD, Basic, and two flavors of Synology's Hybrid RAID (SHR), which lets you mix drives of different capacities. The DS213+ proved faster, scoring 64. As an example, video production houses have a need for high-speed storage. Just like the DS1817+, the Synology DS1618+ comes with a single PCIe 3. (Note, if you choose 'Better performance', SHR and SHR-2 aren't an option. No job is too big or too small for the Synology DiskStation DS1821+ as it is a great "next step" appliance into the storage needs that most computer enthusiasts, developers, and. Synology Hybrid RAID (SHR) is a little more advanced than classic RAID levels. What is RAID and why do I need it on my NAS Drive? https://nascompares. SHR: Synology Hybrid RAID (SHR) is an automatic RAID management system designed by Synology. Hardware encryption engine: Yes. I then want to build a Raid 1 with the two hard disks. Sep 10, 2021 · The Synology Hybrid RAID (SHR) allows mixing drives of different capacities without wasting any storage space. Synology also quotes speeds of 1,165MB/s and 527. Synology Disk Station DS418 - NAS server - 4 bays - RAID 0, 1, 5, 6, 10, JBOD - RAM 2 GB - Gigabit Ethernet - iSCSI Starting Price CAD $599. OBSOLETE - Replaced by DS-920+ in 2020 Plus Series 4-bay NAS for Offices and IT Pros Diskless 0 TB Supports RAID SHR, 0,1,5,6,10. It supports RAID 0, RAID 1, RAID 5, RAID 6, RAID 10, JBOD, Basic, and two flavors of Synology's Hybrid RAID (SHR), which lets you mix drives of different capacities. The writing performance is slower for RAID 1 but if one of the disks becomes corrupted, all data is available on the second disk, and you can replace the corrupted disk, rebuild the array, and after rebuilding, continue using RAID 1. Für Synology bedeutet das, dass …. RackStation SA3600, 12 x 3. Shr Is An Automated Raid Management System Allowing You To Easily Create And Expand Storage Volumes And Migrate Raid Types Without Requiring Details On Raid. SHR (Synology Hybrid RAID) - is a RAID management technology based on Linux LVM, which is used in Synology NASes, similar to NETGEAR's X-RAID2. • A complete, cost-effective 3-2-1 backup protection solution. 1GbE Test Results Synology DS1618+ SHR. Any suggestions which is better or. Synology Hybrid RAID. For the DS1815+, I would start out with a minimum of 3 drives for a RAID 5 array. Their hybrid mode is also simply a mixture of RAID 1 and RAID 5 or 6. A RAID system consists of two or more drives working in parallel. Priced at Rs. 75 MB/s and 97. Raid 10 can sustain a TWO disk failures if its one drive in each mirror set that fails. this mode is called Synology Hybrid RAID.