VERITAS Storage Foundation 4.1 Intelligent Storage Provisioning Administrator's Guide

Storage Selection Rules

126 VERITAS Storage Foundation ISP Administrator’s Guide

select

A select rule specifies which storage to use for creating VxVM objects. When used outside of a sub

clause, this rule is applied to an entire volume.

Note Expressions involving select can use the allof, anyof, eachof, noneof and

oneof operators to combine multiple arguments. By default, ISP applies the anyof

operator. See “Storage Selection Rule Operators” on page 128 for more information.

The following examples demonstrate the application of select rules:

◆ The following rules, which try to allocate LUNs first from Room1, then from Room2 if

unsuccessful, and then from both locations, are equivalent:

select "Room"="Room1", "Room"="Room2"

select anyof("Room"="Room1", "Room"="Room2")

Note When the anyof operator is used, ISP takes storage from the operands in the order that

they are specified.

◆ Use only EMC LUNs from Room1:

select eachof("VendorName"="EMC", "Room"="Room1")

Note Here the eachof operator is used rather than the allof operator. The eachof

operator implies the logical intersection of its operands. The allof operator implies

the logical union of its operands.

◆ Use the specified LUNs from an enclosure:

select "DeviceName"="Enclr1_1","DeviceName"="Enclr1_2"