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393Administering hot-relocation
Moving and unrelocating subdisks
without using the original offsets. Refer to the vxunreloc(1M) manual page for
more information.
The examples in the following sections demonstrate the use of vxunreloc.
Moving hot-relocated subdisks back to their original disk
Assume that mydg01 failed and all the subdisks were relocated. After mydg01 is
replaced, vxunreloc can be used to move all the hot-relocated subdisks back to
mydg01.
# vxunreloc -g mydg mydg01
Moving hot-relocated subdisks back to a different disk
The vxunreloc utility provides the -n option to move the subdisks to a
different disk from where they were originally relocated.
Assume that mydg01 failed, and that all of the subdisks that resided on it were
hot-relocated to other disks. vxunreloc provides an option to move the
subdisks to a different disk from where they were originally relocated. After the
disk is repaired, it is added back to the disk group using a different name, for
example, mydg05. If you want to move all the hot-relocated subdisks back to the
new disk, the following command can be used:
# vxunreloc -g mydg -n mydg05 mydg01
The destination disk should have at least as much storage capacity as was in use
on the original disk. If there is not enough space, the unrelocate operation will
fail and none of the subdisks will be moved.
Forcing hot-relocated subdisks to accept different offsets
By default, vxunreloc attempts to move hot-relocated subdisks to their
original offsets. However,
vxunreloc fails if any subdisks already occupy part or
all of the area on the destination disk. In such a case, you have two choices:
■ Move the existing subdisks somewhere else, and then re-run vxunreloc.
■ Use the -f option provided by vxunreloc to move the subdisks to the
destination disk, but leave it to vxunreloc to find the space on the disk. As
long as the destination disk is large enough so that the region of the disk for
storing subdisks can accommodate all subdisks, all the hot-relocated
subdisks will be unrelocated without using the original offsets.
Assume that mydg01 failed and the subdisks were relocated and that you want
to move the hot-relocated subdisks to mydg05 where some subdisks already
reside. You can use the force option to move the hot-relocated subdisks to
mydg05, but not to the exact offsets:
# vxunreloc -g mydg -f -n mydg05 mydg01