HP LeftHand P4000 SAN Solutions User Manual
Page 157
Table 51 Characteristics for new volumes (continued)
Definition
Configurable
for Primary
or Remote
volume
Volume
characteristic
and ‘_’ (underscore). Once created, the volume name cannot be changed. You can enable
and customize a default naming convention for volumes. See
for more information.
[Optional] A description of the volume.
Both
Description
The logical block storage size of the volume. Hosts and file systems operate as if storage
space equal to the volume size is available in the cluster. This volume size may exceed the
Primary
Size
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
.
Remote volumes contain no data, since they serve as targets for Remote Copy. 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.
Both
Servers
Advanced Tab
If the management group contains more than one cluster, you must specify the cluster on
which the volume resides.
Both
Cluster
The data protection level indicates the number and configuration of data copies created on
storage systems in the cluster.
Both
Data
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 is Network RAID-10. For information about the data protection levels, see
“Planning data protection” (page 142)
Creating a volume
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