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Archived content

NOTE: this is an archived page and the content is likely to be out of date.

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.

Global hot spare

*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 Storage	Disk Storage Systems	ETERNUS DX60 S3 ETERNUS DX100 S3/DX200 S3 ETERNUS DX500 S3/DX600 S3 ETERNUS DX8700 S3/DX8900 S3 ETERNUS DX60/DX60 S2 ETERNUS DX80/DX80 S2 ETERNUS DX90/DX90 S2 ETERNUS DX400/DX400 S2 series ETERNUS DX8000 series/DX8700 S2 ETERNUS4000, ETERNUS8000
Supported Storage	All-Flash Arrays	ETERNUS DX200F