Storage Pool
With DiskStation, you may combine multiple hard disks into a single storage unit called a storage pool. Volumes can be created on top of 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:
- A storage pool must be comprised of hard disks of the same hard drive type. You cannot use SATA and SAS hard disks 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 disk number for each RAID Array can be 6, 12, or 24. You can set the maximum disk number while creating the storage pool, and the number cannot be modified later. When a RAID Array has been assigned with the maximum number of disks, the next disk 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 hard disk but it does not appear in the Storage Pool Creation Wizard, please check the status of the hard disk in HDD/SSD.