Viewing Storage Pool Information

Context

• On the storage pool management page, you can click to refresh storage pool information.
• On the storage pool management page, you can click to export the storage pool information list.
• On the storage pool management page, you can click or next to a parameter and enter a keyword or select a parameter value to search for the required storage pool information.
• On the storage pool management page, you can click to select the storage pool parameters you want to view.
• On the storage pool management page, you can click or next to a parameter to change the display order of storage pools.

Procedure

1. Choose Resources > Resources > Storage Pool.
2. View information about a storage pool in the function pane. Table 1 describes the related parameters.

   Table 1 Storage pool parameters

   Parameter	Description
   Name	Name of a storage pool.
   Storage Pool ID	ID of a storage pool.
   Status	Status of a storage pool. Possible values are Normal, Faulty, Write-protected, Stopped, Faulty and write-protected, Migrating data, Degraded, Rebuilding data, Migrating services, and Unknown. NOTE: When expanding or reducing the capacity of a storage pool on DeviceManager, the task is at the Notify EDS scale out or Clear EDS on the storage node step, and the storage pool is in normal status, Status of the storage pool will be displayed as Migrating services. On the CLI, Migrating services is not a possible value of storage pool status. A storage pool in such status will be displayed as Normal.
   Service Type	Service type of a storage pool.
   Key Service	Internal key service: The built-in key management function of the system is used. External key service: An external key management server is used for management.
   Total Usable Capacity	Actual usable physical disk space of a storage pool (Total physical disk capacity – Capacity consumed by EC redundancy – Capacity lost due to hardware faults).
   Used Capacity	Used physical disk space of a storage pool.
   Capacity Usage	Ratio of Used Capacity to Total Usable Capacity of a storage pool.
   Total Available Capacity	Total amount of data that can be written into a storage pool.
   Used Available Capacity	Total amount of data that has been written into a storage pool.
   Security Level	Security level of a storage pool.

   

   • In the event of a node or disk fault, the system is degraded and reconstructed. Total Usable Capacity and Total Available Capacity decrease and change dynamically. After the fault is rectified, the capacity recovers.
   • After the node or disk recovers from the fault, the system recycles the data written during EC reduction upon the fault. Before the recycle is complete, Total Usable Capacity and Total Available Capacity change dynamically in a small range.
   • You can click the name of a storage pool to view its summary and disk pool information. Table 2 describes related disk pool parameters.

   Table 2 Disk pool parameters

   Parameter	Description
   Disk Pool	Name of a disk pool.
   ID	ID of a disk pool.
   Status	Status of a disk pool. Possible values are Normal, Faulty, Stopped, Migrating data, Degraded, Rebuilding data, and Unknown.
   Nodes	Number of nodes in a disk pool.
   Redundancy Policy	Redundancy policy of a disk pool.
   Main Storage	Main storage type of a disk pool.
   Main Storage Disks	Number of main storage disks in a disk pool.
   Cache Disks	Number of cache disks in a disk pool.
   Tier Grade	Tier grade of a disk pool.