VERITAS Storage Foundation 4.1 Intelligent Storage Provisioning Administrator's Guide

Compound Rules
132 VERITAS Storage Foundation ISP Administrator’s Guide
mirror_group
The mirror_group rule groups together different mirrors of a volume. It should be used when
there are groups of mirrors with several things that are common to each group, or when such groups
need to have a separateby rule between them. Merging of mirrors can only take place within
mirror groups.
The following example demonstrates the application of the mirror_group rule:
◆ Configure two mirror groups, A with two striped mirrors, and B with two concatenated mirrors,
where the mirrors in each group lie within different enclosures:
mirror_group A {
mirror 2 {
confineto "Enclosure"
}
stripe 4
}
mirror_group B {
mirror 2 {
confineto "Enclosure"
}
striped false
}
mirror_group A,B {
separateby "Enclosure"
}
stripe
The stripe rule describes one or more columns of a volume. All basic rules and some restricted
form-related or mirror-related rules can be specified within a stripe rule. ISP merges multiple
stripe rules to form a single stripe rule whose rules are the union of the separate stripe
rules.
The following examples demonstrate the application of the stripe rule:
◆ Stripe a VxVM object over 5 columns:
stripe 5