vxassist constraint to mirror between enclosures
Article ID: 100001890
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vxassist constraints to mirror between enclosures
What is the exact constraint to use if we want to mirror a volume to different plexes each of which on a different enclosure?
We can add the following entries to the /etc/default/vxassist file to get it:
1.mirror=enclosure
2.mirrorconfine=enclosure
The first option will set an hard constraint so if you try to mirror a volume and there won't be enough space to allocate for one of its plexes the command will fail with an error about that missing space.
The second option instead will set a soft constraint so that if you try to mirror your volume, vxconfigd will try to satisfy the constraint as much as possible. If there won't be enough space on each enclosure but will be enough on the whole diskgroup to perform the mirror, the constraint will be dropped and the command will succeed.
Depending on your needs choose only one of the two options (1) or (2).
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vxassist constraint to mirror between enclosures
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