Hot spare disk use between different RAID groups - Global Hot Spare

Hot spare disks are preparatory disk drives that are kept on active standby for use when a disk drive fails. The Global Hot Spare function enables hot spare disks to be used for any RAID group.

When a disk drive in a RAID group fails, data on the disk drive is rebuilt automatically on the hot spare disk in background. Then after the failed disk drive is replaced by a new disk drive, data on the hot spare disk will be retrieved (copied back) onto the new disk drive automatically.

  • *Note:
    This image may differ depending on the storage product configuration.
  • Benefit

    • Efficient use of a hot spare disk by any RAID groups.

    Product Requirements

    Supported StoragesAll-Flash ArraysETERNUS AF150 S3
    ETERNUS AF250 S3/S2, AF250
    ETERNUS AF650 S3/S2, AF650
    Hybrid Storage SystemsETERNUS DX60 S5/S4/S3
    ETERNUS DX100 S5/S4/S3, DX200 S5/S4/S3
    ETERNUS DX500 S5/S4/S3, DX600 S5/S4/S3
    ETERNUS DX900 S5
    ETERNUS DX8700 S3/S2, DX8900 S4/S3
    ETERNUS DX60 S2, DX80 S2, DX90 S2
    ETERNUS DX400 S2 series
    • *Note:
      Products/features/support content introduced on this page may be modified without notice.

Further Information

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