Obtaining information about storage clusters

Virtual Storage Platform One SDS Block Storage Administrator Guide
Version
1.17.x
Audience
anonymous
Part Number
MK-24VSP1SDS002-04

The following information can be obtained.

  • storageDeviceId: Type ID of storage devices

  • id: UUID of the storage cluster

  • modelName: Product model name

  • internalId: ID used inside the storage cluster

  • nickname: Nickname of the storage cluster

  • numberOfTotalVolumes: Number of created volumes

  • numberOfTotalServers: Number of registered compute nodes

  • numberOfTotalStorageNodes: Total number of storage nodes that compose the storage cluster

  • numberOfReadyStorageNodes: Number of normally operating storage nodes in the storage cluster

  • numberOfFaultDomains: Total number of fault domains that comprise the storage cluster.

  • totalPoolRawCapacity: Total valid physical capacity of all storage pools that comprise the storage cluster [MiB]

  • totalPoolPhysicalCapacity: Total physical capacity of all storage pools that comprise the storage cluster [MiB]

  • totalPoolCapacity: Total logical capacity of all storage pools that comprise the storage cluster [MiB]

  • usedPoolCapacity: Total consumed capacity of all storage pools that comprise the storage cluster [MiB]

  • freePoolCapacity: Total free capacity of all storage pools that comprise the storage cluster [MiB]

  • savingEffects: Effect of the data reduction function on the entire storage cluster

  • softwareVersion: Storage software version

  • statusSummary: Status summary of the storage cluster

  • status: Management status of the storage cluster

  • writeBackModeWithCacheProtection: State of write back mode with cache protection of the storage cluster

  • metaDataRedundancyOfCacheProtectionSummary: Summary of metadata redundancy for cache protection in write back mode with cache protection

  • systemRequirementsFileVersion: Version of the system requirements file registered in the storage cluster

  • serviceId: Service ID of the storage cluster. When no value is set, null is output.

  • deploymentType: Storage node deployment type.

    • (Bare metal) Always “Normal”

    • (Cloud) In the case of Single-AZ configuration, "Normal" is always output. In the case of Multi-AZ configuration, "Multi-AZ" is output.

Note:

  • totalEfficiency [%] indicates the used capacity reduction effect achieved by the volume creation function, snapshot function, and data reduction function.

    This is an average ratio [%], where the ratio of usedCapacity [MiB] (used capacity of the storage pool) to totalVolumeCapacity [MiB] (total capacity of created volumes) is calculated for each storage controller, and then weighted according to the total capacity of the created volumes for each storage controller. The larger the total capacity of created volumes of a storage controller is, the more the capacity reduction effect of that storage controller are reflected to the totalEfficiency value.

    For example, if the total capacity of created volumes is 1,000 for each of the storage controllers and the used capacity of the storage pool is 50, totalEfficiency of 2,000 [%] is output by using a REST API or CLI.

    In VSP One SDS Block Administrator, the value corresponding to totalEfficiency is displayed as "20.00:1" in the dashboard window (Total Efficiency) and the Storage Pool window (TOTAL EFFICIENCY). Also, in the dashboard window of the VSP One SDS Block Administrator, if the ratio is greater than 9,999,999:100, ">99999.99:1" is displayed.

    When snapshot volumes are used, the used storage pool capacity can be reduced by storing only the differential data between P-VOL and S-VOL. Therefore, the value of totalEfficiency is larger than that when snapshot volumes are not included, even if the total capacity of created volumes is the same.

    When storage pool expansion processing is being performed and KARS16017-I, KARS16020-I, KARS16022-I, or KARS16081-I is output, the value of totalEfficiency might become larger even when snapshot operations are not being performed. Note that snapshot operations refer to preparation (for obtaining snapshots) and obtaining, deleting, and restoring snapshots.

  • (Cloud) The number of created volumes that can be obtained using numberOfTotalVolumes does not include the number of volumes whose volumeType is ExternalMigrationOrigin.

  • Required role: Security, Storage, RemoteCopy, Monitor, Service, Audit, or Resource

Obtain information about the storage cluster.

REST API: GET /v1/objects/storage

CLI: storage_show