Synology Hybrid Raid

Synology Hybrid RAID (SHR)

Synology Hybrid RAID (SHR) is an automatic RAID management system from Synology, designed to make storage volume spread quickly and easily. If you don't know much about RAID, SHR is advised to adjust the storage volume on the Synology NAS. 

Learn about various types of SHR and the advantages of the disadvantages through classic single RAID disk settings. In the end, you will be able to choose the type of RAID or SHR for the best interests of the storage volume. This article assumes that as a Synology NAS admin, it is also an experienced network administrator with a strong understanding of RAID management. 

Hybrid Technology RAID (SHR). SHR is an automated RAID management system that makes deployment of storage volume easier than traditional RAID systems. SHR will allow users to handle RAID management, expand storage, and maximize storage capabilities even if they don't have good understanding of various RAID levels. 

SHR allows for 1-disk or 2-disk worth of redundancy - which means the volume of SHR can suffer until two disks are lost, and the volume of data will still be available for use. Note that RAID volumes (either Classic RAID or SHR) are not backup systems. 

RAID (Redundant Array of Independent Disks) is a storage technology that combines several disk drive components into logical units. Using SHR. SHR is based on the Linux RAID management system, and is entirely optional to use. 

SHR not only benefits traditional RAID system expert users but also novice users with little technical background when they are looking for data storage protection. However, SHR is not supported on all Synology NAS models. For models that do not support SHR, please see this article. For expert users, classic RAID-levels are recommended if they prefer managing RAID systems manually.

Synology Hybrid Raid Volume With Drive

Expand the SHR volume with larger drives, such as 1TB to 3TB. Expand the SHR volume by changing the drives one by one, and allowing DiskStation Manager to correct the volume. As soon as enough redundant storage is available, the SHR volume will expand the capacity in storage that can be used. 

Can I expand the SHR volume with additional drives, such as 5 x 1TB up to 15 x 1TB drives. Expand the volume of SHR by adding additional drives to existing arrays, especially for those who want to expand their storage because of their budget or storage needs. 

Note that if you expand the SHR volume with more drives, the Synology NAS may take a lot of time to make all installed drives usable. We recommend a quick way to expand: Schedule time for expansion, and expand the drive when NAS Synology is in use in Synology Hybrid Raid. 

After all, expanding the drive is more time efficient than adding more drives. Does the SHR volume that has been made accept drives with a smaller capacity. Suppose the SHR volume is built on a 1TB drive. To replace an old drive or add a new one, you must use a drive that is equal to or greater than 1TB. 

Smaller drives (eg, 500GB) cannot be added to existing SHR (or Classic RAID) volumes. Even if these smaller drives are added, smaller storage drives still cannot be used in volume. Can I change the disk error tolerance from the SHR volume to a 1-disk error tolerance. If a single-disk SHR volume runs without disk error tolerance. 

It can add one more drive to set a 1-disk error tolerance, equivalent to RAID data redundancy 1 Install an additional hard drive on NAS Synology. Open Storage Manager> Volume> Manage> Increase volume by adding hard disk. When a new drive is added to the SHR volume, the volume will have a 1-disk error tolerance in Synology Hybrid Raid.

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