Setup Guide

PS Series 3000 QuickStart Step 4. Create a Volume
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Step 4. Create a Volume
After setting the RAID policy for a member, you can create one or more volumes.
For each volume, you must specify:
• Name. Unique name used to manage the volume, up to 64 characters. Valid
characters include letters, numbers, periods, hyphens, and colons.
• Size. Amount of group space to allocate to the volume.
Optionally, you can override the following default snapshot settings for the
volume:
• Snapshot reserve. Amount of group space, as a percentage of the volume
size, to reserve for snapshots. The default is 100 percent of the volume size.
• Warning alarm. By default, an alarm is generated when the amount of free
snapshot space is less than 10 percent of the total reserved snapshot space.
• Snapshot space recovery policy. Action to take automatically when the
volume’s reserved snapshot space has been exceeded: either delete the oldest
snapshot (default) or put the volume and all its snapshots offline.
In addition, you must create access control records to allow authorized hosts
access to a volume, while denying other hosts access. A volume and its snapshots
share a list of records (up to 16).
An access control record can apply to the volume, its snapshots, or both. For
example, you may want to give one host access to both the volume and its
snapshots and give another host access only to the volume snapshots.
In each access control record, you can specify an IP address, iSCSI initiator name
or CHAP user name (or any combination of the three). To access a volume or
snapshot, a host must exactly meet all the requirements in one access control
record.