VERITAS Volume Manager 3.1 Storage Administrator Administrator's Guide

Volume Tasks
Creating a Volume
Chapter 4 153
To create a concatenated volume
This procedure creates a concatenated volume that consists of one or
more regions of the specified disk(s). This procedure also gives you the
options of placing a file system on the new volume or mirroring the
volume.
You can use this procedure to create a regular concatenated volume or a
concatenated pro volume. A concatenated pro volume is layered and
mirrored.
Step 1. Select the appropriate host machine.
Step 2. Choose File > New > Volume (menu) or Volume Create (Command
Launcher).
Step 3. Complete the New Volume dialog box as follows:
Striped Pro • The volume is layered and
mirrored. This provides
improveddataredundancy and
reduces the impact of disk
failures.
• Recovery time is quicker than
with regular striped volumes
that are mirrored.
• Striping provides improved
read and write performance.
• Striping can help to balance
the I/O load from multi-user
applications across multiple
disks.
• A striped pro volume requires at
least four disks.
• Layered volumes consist of more
Volume Manager objects than
non-layered volumes and are
likely to fill up the disk group’s
configuration database sooner.
When the configuration database
is full, you cannot create more
volumes in the disk group.
Table 4-1 Layout Comparison
Layout Advantages Disadvantages
Disk Group Name: Either accept the default disk group or click Browse
to select another disk group.
Volume Name: Type the new volume’s name (or accept the default
name).