This topic describes how to create SSD cache, storage pool, volume, and LUN mapping.

Step 1: Navigation

Workflow > Create SSD Cache, Storage Pool, Volume, and LUN Mapping > Run.

Step 2: Select a device

Select a connected device from the drop-down menu.

Step 3: Select an SSD cache storage pool

Select SSD to create an SSD cache storage pool.

Step 4: Create a storage pool

Parameter details:

  • Storage pool name: The name of the default storage pool is “Storage Pool” plus the index code. For example, Storage Pool-1 and Storage Pool-2. It can be modified.

  • Storage tiering/Layered indexing: Disabled or enabled.

  • Write mode

    • Specify the write mode: default, write-back, and write-through.
    • Default: The write mode depends on the cache mode of the controller and the event triggering mechanism.
    • Write-back: The write process is complete after the data is written to the cache.
    • Write-through: The write process is complete only after the data is committed to the disk. The write-through mode provides better data integrity but lower performance.

  • Allocation: Specifies the controller slot for the new storage pool.

  • Member hard disks: Selects the hard disks to be included in the storage pool.

  • RAID level: Select a RAID level for data protection. The applicable RAID level depends on the number of hard disks.

RAID Level Minimum Number of Hard Disks
RAID 0 1
RAID 1 2
RAID 3 3
RAID 5 3
RAID 6 4

  • Stripe size: Specifies the array stripe size. Make sure that the modification can enhance the performance before you modify this data.

  • SED security: Specifies disk members to be secured with SED (Self-Encrypting Drives). Before this option is enabled, the following conditions must be met:

    • SED security authentication key is established
    • All hard drives support SED security

Step 5: Create a volume

  • Storage pool: Specifies the storage pool where the new volume is located.

  • Quantity: The number of volumes to be created in a specific storage pool.

  • Enable thin provisioning or enable thick provisioning: The two options are mutually exclusive.

  • Volume size: Specify the volume size.

  • Minimum reserved space: You can choose to set a minimum reserved space only when thin provisioning is enabled.

  • Enable file system: If the volume is created for shared folders, you can enable file system. With this option enabled, you do not map your volumes to host LUNs.

Step 6: Host LUN mappings

Select a volume: You can map the new volume based on previous settings. You can also select other volumes.

Step 7: Complete the configuration

Click Run to complete the configuration process.