HP StoreOnce VSA Backup System User Guide (TC458-96025)

3. Expand and locate the registry subtree as follows:
HKEY_LOCAL_MACHINE \ SYSTEM \ CurrentControlSet \ Services \LanmanWorkstation \
Parameters
4. Add a new REG_DWORD key with the name of SessTimeout.
5. Set the timeout value. It is recommended to initially set the timeout value at 600 and then
change the value according to the situation of your machine.
6. Reboot the client.
NFS State handle error
NOTE: NetBIOS name resolution is not supported on CIFS shares.
The following sequence will cause problems when connecting to a NAS share.
1. Create an NFS share and mount it on a Linux box.
2. Delete the share on the StoreOnce Backup system without unmounting it from the Linux box.
3. Recreate the share again with the same name.
In this scenario, the Linux client will assign a new set of inodes to the new share, but when trying
to access the old mount point it will use the previous set of inodes and will therefore not manage
to connect.
Reboot the host Linux system and the connection will work again.
If backup or replication fails
Backup fails
Check the system Events (at the bottom of the navigation tree). One reason for a backup failure is
that the system has reached 90% of storage capacity used. An alert is generated at 90% and at
each increase of 1%. When capacity reaches 99% full, the system becomes read-only.
HP also strongly recommends checking backup application error logs. There are a couple of things
that may result in errors:
• Exceeding the maximum concurrent jobs
• Exceeding the maximum number of concurrent open files for NAS
• Exceeding the total number of files in a NAS share
• Reconfiguring devices whilst backups are in progress
• Deleting replication mappings
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
128 Basic troubleshooting