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382 Administering hot-relocation
How hot-relocation works
Figure 12-1 Example of hot-relocation for a subdisk in a RAID-5 volume
mydg01 mydg02 mydg03 mydg04 mydg05
mydg01 mydg02 mydg03 mydg04 mydg05
mydg01-01 mydg02-01
mydg02-02
mydg03-01
mydg03-02
mydg05-01
mydg04-01
mydg01-01 mydg02-01
mydg02-02
mydg03-01
mydg03-02
mydg04-01
X
Spare Disk
mydg01 mydg02 mydg03 mydg04 mydg05
mydg05-01mydg01-01 mydg02-01
mydg02-02
mydg03-01
mydg03-02
mydg04-01
X
a) Disk group contains five disks. Two RAID-5 volumes are configured across four of the disks.
b) Subdisk mydg02-01 in one RAID-5 volume fails. Hot-relocation replaces it with subdisk mydg05-0
c) RAID-5 recovery recreates subdisk mydg02-01’s data and parity on subdisk mydg05-01 from
One spare disk is available for hot-relocation.
the data and parity information remaining on subdisks mydg01-01 and mydg03-01.
that it has created on the spare disk, and then initiates recovery of the RAID-5 volume.