HP StoreOnce Backup - Manual (Page 19)

Table 3 Select Target Service Set parameters
Description Parameter
The name of the Service Set. There are two for each couplet
in your cluster configuration. Name
The status of the Service Set. Status
This column is displayed when you create a new library
or share. It indicates how many devices you can still create Available Remaining
for this service set. The maximum devices available
depends upon the number of couplets in your configuration.
The maximum is 48 for a single couplet.
Why are there two service sets for each couplet?
There are two service sets for each couplet installed in the HP StoreOnce rack to ensure resilience
and failover. Each Service Set has a VIF associated with it. This VIF is the IP address used to
configure replication mappings and StoreOnce VTL, NAS, or Catalyst devices as backup targets
in the backup application.
Each node in a couplet can run both service sets if required in the event of a node failure, and
each service set has its own set of service processes and storage. Each service set is associated
with:
•
A primary node, the node on which it usually runs.
•
A secondary node, where it will run if its primary node fails.
This allows each node to act as the secondary node for the main Service Set on the other. In the
event of a failover, the service set moves transparently from the primary node to the secondary
node. Because each storage cluster in the couplet has two connections, one from each node, the
service set can still access its storage on the primary node even though it is now running on the
secondary node.
Maximum device considerations
The HP StoreOnce Backup system supports a maximum number of virtual devices. This number
may be split across VTL, NAS, and Catalyst devices. The table in
Create a library (page 26)
illustrates some possible configurations. For more detailed examples refer to StoreOnce key
parameters (page 199) and the HP StoreOnce Backup system Concepts and Configuration Guidelines.
System information and status
System information
This section provides information unique to an individual HP StoreOnce Backup system.
Table 4 System information parameters
Description Parameter
The type of server for the node on which the Service Set is running. Type
Using StoreOnce software version 3.11.00, you can add StoreOnce 6500 couplets to
a StoreOnce B6200 Backup system. This configuration is referred to as a mixed cluster
configuration.
The node name for this Service Set. Node Name
The serial number of the node on which the Service Set is running. (Note: this serial
number is for internal use only; it is not the serial number that should be used when
contacting HP Support. See
Important information about serial numbers (page 178) .)
Serial Number
System information and status 19