Creating a Block Storage Pool

Procedure

1. Choose Cluster > Storage Pool.
2. Click Create.

   The Create Storage Pool page is displayed.

3. In the Basic Information area, configure basic information for the storage pool.

   Table 1 describes related parameters.

   Table 1 Storage pool parameters

   Parameter	Description
   Storage Pool Name	Indicates the name of the storage pool. NOTE: The name must be unique. The name can contain only letters, digits, underscores (_), and hyphens (-). The name contains 1 to 64 characters.
   Service Type	Indicates the service type of the storage pool. You need to select Block here.
   Storage Pool Type	Indicates the type of the storage pool. Possible options are Common and Self-encrypting.
   Security Level	Indicates the security level of the storage pool. Possible options are Node and Cabinet.
   Redundancy Policy	Indicates the redundancy policy of the storage pool. Possible options are EC and Data copy.
   Main Storage	Indicates the main storage type of the storage pool. When Storage Pool Type is set to Common, possible options are SAS, Self-encrypting SAS, SATA, Self-encrypting SATA, SSD, and SSD card or NVMe SSD. When Storage Pool Type is set to Self-encrypting, possible options are Self-encrypting SAS and Self-encrypting SATA.
   Cache	Indicates the cache type of the storage pool.
   EC	Indicates the EC redundancy policy of the storage pool. You need to set Parity Fragments and Data Fragments. The storage pool redundancy policy is N+M or N+M:1, where N indicates the number of data fragments, and M indicates the number of parity fragments. Currently, possible options are N+2:1, N+2, N+3:1, N+3, N+4:1, and N+4. When Security Level is set to Node: N+2:1 (N can be 4, 6, 8, 10, 12, 14, 16, 18, 20, or 22) Minimum required nodes: (N+2)/2 When (N+2)/2 ≤ nodes < N+2, the storage pool tolerates the failure of 1 node or 2 disks. When nodes ≥ (N+2), the storage pool tolerates the failure of 2 nodes or 2 disks. N+2 (N can be 4, 6, 8, 10, 12, 14, 16, 18, 20, or 22) Minimum required nodes: N+2 When nodes ≥ (N+2), the storage pool tolerates the failure of 2 nodes or 2 disks. N+3:1 (N can be 6, 8, 12, 14, 18, or 20) Minimum required nodes: (N+3)/3 (N can be 6, 12, or 18) or (N+4)/3 (N can be 8, 14, or 20) When (N+3)/3 ≤ nodes < (N+3), the storage pool tolerates the failure of 1 node or 3 disks. (N can be 6, 12, or 18). When (N+4)/3 ≤ nodes < (N+3), the storage pool tolerates the failure of 1 node or 3 disks. (N can be 8, 14, or 20). When nodes ≥ (N+3), the storage pool tolerates the failure of 3 nodes or 3 disks. N+3 (N can be 6, 8, 10, 12, 14, 16, 18, or 20) Minimum required nodes: N+3 When nodes ≥ (N+3), the storage pool tolerates the failure of 3 nodes or 3 disks. N+4:1 (N can be 8, 12, 16, or 20) Minimum required nodes: (N+4)/4 When (N+4)/4 ≤ nodes < (N+4), the storage pool tolerates the failure of 1 node or 4 disks. When nodes ≥ (N+4), the storage pool tolerates the failure of 4 nodes or 4 disks. N+4 (N can be 6, 8, 10, 12, 14, 16, 18, or 20) Minimum required nodes: N+4 When nodes ≥ (N+4), the storage pool tolerates the failure of 4 nodes or 4 disks. When Security Level is set to Cabinet: N+2:1 (N can be 4, 6, 8, 10, 12, 14, 16, 18, 20, or 22) Minimum required cabinets: (N+2)/2 When (N+2)/2 ≤ cabinets < (N+2), the storage pool tolerates the failure of 1 cabinet or 2 nodes. When cabinets ≥ (N+2), the storage pool tolerates the failure of 2 cabinets or 2 nodes. N+2 (N can be 4, 6, 8, 10, 12, 14, 16, 18, 20, or 22) Minimum required cabinets: N+2 When cabinets ≥ (N+2), the storage pool tolerates the failure of 2 cabinets or 2 nodes. N+3:1 (N can be 6, 8, 12, 14, 18, or 20) Minimum required cabinets: (N+3)/3 (N can be 6, 12, or 18) or (N+4)/3 (N can be 8, 14, or 20) When (N+3)/3 ≤ cabinets < (N+3), the storage pool tolerates the failure of 1 cabinet or 3 nodes. (N can be 6, 12, or 18). When (N+4)/3 ≤ cabinets < (N+3), the storage pool tolerates the failure of 1 cabinet or 3 nodes. (N can be 8, 14, or 20). When cabinets ≥ (N+3), the storage pool tolerates the failure of 3 cabinets or 3 nodes. N+3 (N can be 6, 8, 10, 12, 14, 16, 18, or 20) Minimum required cabinets: N+3 When cabinets ≥ (N+3), the storage pool tolerates the failure of 3 cabinets or 3 nodes. N+4:1 (N can be 8, 12, 16, or 20) Minimum required cabinets: 3, 4, 5, or 6. When minimum required cabinets ≤ cabinets < (N+4), the storage pool tolerates the failure of 1 cabinet or 4 nodes. When cabinets ≥ (N+4), the storage pool tolerates the failure of 4 cabinets or 4 nodes. N+4 (N can be 6, 8, 10, 12, 14, 16, 18, or 20) Minimum required cabinets: N+4 When cabinets ≥ (N+4), the storage pool tolerates the failure of 4 cabinets or 4 nodes. NOTE: The disk utilization increases with the value of N. This parameter is available only when Redundancy Policy is set to EC.
   Data copy	Indicates the number of redundant copies allowed by the storage pool. NOTE: This parameter is available only when Redundancy Policy is set to Data copy.

4. In the Disk Pool area, click Create and create a disk pool on the Create Disk Pool page that is displayed.
   1. Set Disk Pool Name.
      

      • The name must be unique.
      • The name can contain only letters, digits, underscores (_), and hyphens (-).
      • The name contains 1 to 64 characters.
   2. Set Max. Main Storage Media per Node. The value of this parameter indicates the maximum number of storage media that can be used by a single node to store user data. It determines the allocation of cache and compute resources on the node. Set this parameter based on site requirements.
   3. Click Add. On the Choose Node page that is displayed, select the nodes and disks for creating a disk pool.
      

      You can select one or more added nodes and disks and click Remove to remove them.

   4. Click OK.
   5. Confirm your operation as prompted.

5. Click Create.
6. Confirm your operation as prompted.