The possible causes include the following:

• A network communication problem that occurred on the master server, media server, or one of the clients.

• An I/O error that occurred during a read from the file system.

• Read of an incomplete file or a corrupt file.

• A socket read failure caused by a network problem or a problem with the process that writes to the socket.

• A problem specific to NetBackup Snapshot Client (see recommended actions).

• The first EV-SQL backup after a NetBackup installation failed.

  See the Troubleshooting section of the NetBackup for Enterprise Vault Agent Administrator's Guide.

• On Windows, the file list that NetBackup generates for the snapshot copy operation does not have enough information to restore from the tar32 copy. For example, block number information is not correct because the tar32 copy is not yet created.

• NetBackup does not support the policy's Enable file recovery from VM backup option for dual-boot VMs.

• Locking timeouts in the VMware VDDK may cause simultaneous hotadd backups from the same VMware backup host to fail.

  In the NetBackup Activity Monitor, the detailed status log may include messages similar to the following:

  12/05/2014 06:43:53 - begin writing
  12/05/2014 06:48:53 - Error bpbrm (pid=2605) socket read failed: 
  errno = 62 - Timer expired
  12/05/2014 06:48:55 - Error bptm (pid=2654) media manager terminated 
  by parent process
  

  The /NetBackup/logs/vxms log may include repeated instances of a VDDK message similar to the following:

  12/08/2014 05:11:35 : g_vixInterfaceLogger:libvix.cpp:1844 <DEBUG> : 
  [VFM_ESINFO] 2014-12-08T05:11:35.146-06:00 [7F1B1163F700 info Libs'] 
  FILE: FileLockWaitForPossession timeout on '/var/log/vmware/hotAddLock.
  dat.lck/M34709.lck' due to a local process '15882-26732358(bpbkarv)'

• Check the NetBackup Problems report for clues on where and why the problem occurred.

• Check that network communication works properly.

  See "Resolving network communication problems" in the NetBackup Troubleshooting Guide.

• For a FlashBackup client, check the /var/adm/messages log for errors like the following:

  Mar 24 01:35:58 bison unix: WARNING: sn_alloccache: cache
  /dev/rdsk/c0t2d0s3 full - all snaps using this cache are now 
  unusable

  This error indicates that the cache partition is not large enough. If possible, increase the size of the cache partition. Or, if multiple backups use the same cache, reduce the number of concurrent backups. To reduce the number, reschedule some of them or reschedule the entire backup to a time when the file system is less active.

• For detailed troubleshooting information, create a debug log directory for the process that returned this status code. Then retry the operation and check the resulting debug log.

• Ensure that the latest service packs for all products and components (SQL Server, Exchange, Notes, etc.) have been installed.

• Ensure that all the network hardware (NICs, hubs, switches, routers, etc.) throughout the environment are set to full duplex, not half duplex.

• Check the following items regarding the NICs in your system:

  • Upgrade to the latest NIC drivers throughout the system.

  • Ensure that all NICs are set to full duplex, not half duplex.

    See Troubleshooting network interface card performance in the NetBackup Troubleshooting Guide.

  • Increase the timeout settings on the NIC.

  • If NIC teaming is implemented, deactivate for testing purposes.

  • Replace the NIC itself on the affected client or server.

• For NetBackup Snapshot Client, status code 13 may appear in the /usr/openv/netbackup/logs/bpbkar log.

  The log can indicate the following:

  • The files to back up reside on an IDE drive as opposed to SCSI. The off-host backup method was set to either NetBackup media server or Third-Party Copy Device. If you use off-host backup, the disk that contains the client files must be a SCSI or Fibre Channel device.

    If the disk is an IDE drive, you may see the following in the /usr/openv/ netbackup/logs/bpfis log:

    get_disk_info: FTL - /var/tmp/caa026fEU disk_inquiry failed.
    Errno = 25: Inappropriate ioctl for device

    The following listing may appear in the /usr/openv/netbackup/logs/bpbkar log:

    bpbkar: INF - Processing /var
    bpbkar: ERR - get_disk_info() failed, status 13
    bpbkar: ERR - tpc_get_disk_info() failed: err 13
    bpbkar: ERR - bpbkar FATAL exit status = 13: file read failed
    bpbkar: INF - EXIT STATUS 13: file read failed

  • The files to back up exist on a file system that is not mounted. The file system that is specified as the snapshot source must be mounted. If the snapshot source is not mounted but the mount point is present, NetBackup may try to take a snapshot of the directory preceding the directory that was specified as the snapshot source.

  • For the NetBackup media server method, you may need to increase the client read timeout value. In some environments, NetBackup may require more read time than the default value allows. If the client read timeout is insufficient, the backup may fail and that causes this error.

    To increase the client read timeout for all clients, in the NetBackup Administration Console, go to Host Properties > Master Servers > double-click the master server, then go to Properties > Timeouts. Then, increase the client read timeout.

• On Windows, refresh the Backup, Archive, and Restore client console and retry the restore. This action refreshes the file list that is displayed in the client console and passes the correct information about the selected files.

• To prevent timeouts in the VMware VDDK that cause simultaneous hotadd backups from the same VMware backup host to fail, do one of the following:

  • Reduce the number of hotadd backups that run simultaneously.

  • Increase the client-read timeout on the media server as appropriate (15 minutes or more):

    In the NetBackup Administration Console, click NetBackup Management > Host Properties > Double-click on media server > Timeouts > Client read timeout.