VERITAS Volume Manager 3.5 Administrator's Guide (September 2002)

Chapter 7, Creating Volumes

Creating a Volume on Specific Disks

169

Other storage speciﬁcation classes for controllers, enclosures, targets and trays can be

used with ordered allocation. For example, the following command creates a 3-column

mirrored-stripe volume between speciﬁed controllers:

# vxassist -b -o ordered make mirstr2vol 80g layout=mirror-stripe \

ncol=3 ctlr:c1 ctlr:c2 ctlr:c3 ctlr:c4 ctlr:c5 \

ctlr:c6

This command allocates space for column 1 from disks on controllers c1, for column 2

from disks on controller c2, and so on as illustrated in“Example of Storage Allocation

Used to Create a Mirrored-Stripe Volume Across Controllers.”

Example of Storage Allocation Used to Create a Mirrored-Stripe Volume Across Controllers

For other ways in which you can control how vxassist lays out mirrored volumes

across controllers, see “Mirroring across Targets, Controllers or Enclosures” on page 175.

Mirrored-Stripe

Volume

Striped Plex

Mirror

Column 1 Column 2 Column 3

Controllers

c1 c2 c3

c4 c5 c6