9.5.01 HP P4000 SAN Solution User Guide (AX696-96168, February 2012)

Table 43 Characteristics for new volumes
What it meansConfigurable for Primary
or Remote Volume
Volume characteristic
Basic Tab
The name of the volume that is displayed in the CMC. A
volume name is from 1 to 127 characters and is case
BothVolume Name
sensitive. The volume name cannot be changed. You can
enable and customize a default naming convention for
volumes. See “Setting naming conventions” (page 15) for
more information.
[Optional] A description of the volume.BothDescription
The logical block storage size of the volume. Hosts and file
systems operate as if storage space equal to the volume size
PrimarySize
is available in the cluster. This volume size may exceed the
true allocated disk space on the cluster for data storage,
which facilitates adding more storage systems to the cluster
later for seamless storage growth. However, if the volume
size does exceed true allocated disk space, the ability to
make snapshots may be impacted. See “Using snapshots”
(page 162).
Remote volumes contain no data, since they serve as pointers
to tell the system where to make a copy of a primary
snapshot. Therefore, remote volumes do not have a size.
[Optional] Servers are set up in the management group to
connect application hosts to volumes. Select the server that
you want to have access to the volume you are creating.
BothServers
Advanced Tab
If the management group contains more than one cluster, you
must specify the cluster on which the volume resides.
BothCluster
The data protection level indicates the number and
configuration of data copies created on storage systems in
the cluster.
BothData Protection Level
There are six levels of data protection
• Network RAID-0 (None)
• Network RAID-5 (Single Parity)
• Network RAID-6 (Dual Parity)
• Network RAID-10 (2–Way Mirror)
• Network RAID-10+1 (3–Way Mirror)
• Network RAID-10+2 (4–Way Mirror)
The default value = Network RAID-10. For information about
the data protection levels, see “Planning data protection”
(page 142).
156 Using volumes