HP D2D .HP D2D Backup System user guide (EH985-90907, March 2011) - Page 157

Cannot access a storage shelf (HP D2D4100 and 4300 Series Backup Systems)

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of space, make sure that you have fully expanded the storage capacity. The HP D2D2500 Series does not support connection of a Capacity Upgrade Kit. Options for creating space include: • Review your backup jobs to see if you can reduce the size of backup or retention time. • Use the backup application job settings to overwrite or erase data. Cannot access a storage shelf (HP D2D4100 and 4300 Series Backup Systems) If you disconnect a storage shelf, you must reconnect it to the same port to which it was originally connected. Do not daisy chain storage shelves. If backup or replication fails Backup fails It is strongly recommended that users check 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 D2D Best Practices for VTL, NAS and Replication implementations 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 necessary and the D2Ds conflict with another device on the network, these ports can be changed from the defaults when you create the replication pairing or from the Local Appliance's General Settings page. 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. Backup System user guide 157

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of space, make sure that you have fully expanded the storage capacity. The HP D2D2500 Series
does not support connection of a Capacity Upgrade Kit. Options for creating space include:
•
Review your backup jobs to see if you can reduce the size of backup or retention time.
•
Use the backup application job settings to overwrite or erase data.
Cannot access a storage shelf (HP D2D4100 and 4300 Series
Backup Systems)
If you disconnect a storage shelf, you must reconnect it to the same port to which it was originally
connected. Do not daisy chain storage shelves.
If backup or replication fails
Backup fails
It is strongly recommended that users check 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
D2D Best Practices for VTL, NAS and Replication implementations
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 necessary and the D2Ds conflict with another device
on the network, these ports can be changed from the defaults when you create the replication pairing
or from the Local Appliance's General Settings page.
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.
Backup System user guide
157