Storage Pool
With DiskStation, you may combine multiple drives into a single storage unit called a storage pool. Volumes can be created on storage pools. Volumes may be expanded if a storage pool has allocatable space. Different RAID types offer varying levels of data protection. For a general list of RAID types supported by your DiskStation, please refer to General.
Note:
- We recommend using drives in the Synology Products Compatibility List to prevent any issues from occurring. Using incompatible drives may lower the system performance or even cause data loss on your DiskStation.
- A storage pool must be comprised of the same type of drives. You cannot use SATA and SAS drives simultaneously nor SSD and HDD simultaneously to create RAID.
- On models that support RAID Group, a storage pool with multiple volume support or iSCSI LUNs (Block-Level) which uses RAID 5, RAID 6, or RAID F1 may contain multiple RAID Arrays. Every RAID Array belonging to the same storage pool will be the same RAID type (e.g., RAID 5, RAID 6, or RAID F1). The maximum drive number for each RAID Array can be 6, 12, or 24. You can set the maximum number of drives while creating the storage pool, and the number cannot be modified later. When a RAID Array has been assigned with the maximum number of drives, the next drive added to the storage pool may be assigned to a new RAID Array. The new RAID Array must contain the minimum number of drives required for that specific RAID type (i.e., three drives for RAID 5 and RAID F1, and four drives for RAID 6).
- If you want to create a storage pool with a certain drive but it does not appear in the Storage Pool Creation Wizard, please check the status of the drive in HDD/SSD.