HP D2D2502i User Manual download pdf (Page 132)

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.

Recovering Devices that have ‘failed to start’ or have become read-only

If the D2D detects a potential issue with data integrity for a Virtual Tape Library or Share it will

immediately set the status of that device to ‘failed-to-start’ or ‘read-only’, this is to minimize the

possibility of any further potential corruption being introduced on the device.

If a device enters one of these states it is reported on the GUI and selecting that device will give

you some options to attempt to restore the device to a working state.

Three options are available:

• Quick Repair: This forces the device to ignore the error condition and the device is restarted.

However, if following a quick repair the D2D continues to detect a possible integrity error

then the status may once again return to ‘failed to start’ or ‘read-only’. If this is the case, it is

recommended that you try the Repair or Recover option. Running the quick repair option on

a failed device more than once is not recommended as this can lead to further corruption.

• Repair: This reboots the D2D Backup System and during the boot-up process the disks are

checked for errors. Once the D2D has finished rebooting, if the device can now be safely

returned to an online state, it will be returned to that state automatically. If the device remains

132 Troubleshooting

1 2 ... 127 128 129 130 131 132 133 134 135 136 137 ... 177 178

No comments

HP D2D2502i User Manual Page 132