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VERITAS Volume Manager 3.5 Administrator's Guide > Chapter 1 Understanding
VERITAS Volume Manager
Hot-Relocation |
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Hot-relocation is a feature that allows a system to react automatically to I/O failures on redundant objects (mirrored or RAID-5 volumes) in VxVM and restore redundancy and access to those objects. VxVM detects I/O failures on objects and relocates the affected subdisks. The subdisks are relocated to disks designated as spare disks and/or free space within the disk group. VxVM then reconstructs the objects that existed before the failure and makes them accessible again. When a partial disk failure occurs (that is, a failure affecting only some subdisks on a disk), redundant data on the failed portion of the disk is relocated. Existing volumes on the unaffected portions of the disk remain accessible. For further details, see Chapter 9 “Administering Hot-Relocation”. |
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