HP StoreOnce Backup - Manual (Page 171)

Refer to the HP StoreOnce Concepts and Configuration Guidelines for recommended and maximum
values.
Replication fails
If replication needs to take place through a firewall, the network administrator will need to open
(TCP) ports 9387 (Command protocol) and 9388 (Data protocol) to allow the replication traffic
to pass to and from the HP StoreOnce Backup systems.
If the replication Source Appliance fails and goes offline whilst it was performing a NAS replication
job, the replication target share appliance may be left in an inconsistent state. This state may result
in failure to recover from some files in the share or perform a list of files in the share because
relationships between files and folders have been lost. This will automatically be repaired by the
target appliance as soon as it detects the loss of the source appliance, however it may take up to
10 minutes to complete this repair during which time the share will not be available for access.
If some files are failing to replicate and remain out of sync for long periods of time, check that the
backup application is not holding open those files. This can be done by checking that there are
no queued or paused jobs in the backup application, or restarting backup application services. If
neither action resolves the problem, reboot the backup application server.
Catalyst troubleshooting
Since StoreOnce Catalyst is designed to allow maximum control to the client application, any
problems should be remedied by checking job configuration on the client. In the unlikely event that
the StoreOnce Catalyst Status display as Fault, contact HP support services for further advice.
IMPORTANT: If Catalyst operations need to take place through a firewall, the network administrator
will need to open (TCP) ports 9387 (Command protocol) and 9388 (Data protocol) to allow the
Catalyst traffic to pass to and from the HP StoreOnce Backup system.
Performance
Your HP StoreOnce Backup system is designed for high performance backup and restore operations
according to the specification documented. However, it requires careful configuration. Please refer
to the HP StoreOnce Concepts and Configuration Guidelines document for detailed guidance.
There are many reasons why you may not see the performance you expected from your HP
StoreOnce Backup system.
•
Your own network speed or disk access is not fast enough to allow streaming of data.
•
Your backup application is not optimized. For example, there are not enough backup streams
configured to achieve optimum performance.
•
Your HP StoreOnce Backup system is not optimized for your network and application.
Network
The HP StoreOnce Backup system is designed to be run on a 1Gb or 10Gb network. Performance
will be reduced if a 10/100BaseT network is used. The LEDs on the front panel (1–Gb ports only)
and on the network ports and also warnings on the Management Console will indicate the network
speeds at which the device is operating.
StoreOnce Backup system configuration problems
I cannot see a newly created VTL device
When you create a new device on the HP StoreOnce Backup system, the host will not be able to
see the device until you connect manually to it using the iSCSI Initiator or it has been zoned correctly
Catalyst troubleshooting 171