stage saveset failed

Dear All,

Does anyone experience that following error?

07/10/08 16:49:30 nsrmmd #1: cannot open z:\b2d\98\95\720f214c-00000006-69430c05-48430c05-04980000-0a0a0d32 file: No such file or directory
07/10/08 16:49:30 nsrmmd #1: Read operation failed and aborted.
07/10/08 16:49:30 nsrmmd #1: Read operation failed and aborted.
07/10/08 16:49:30 nsrmmd #1: Read operation failed and aborted.
07/10/08 16:49:30 nsrmmd #1: Read operation failed and aborted.
07/10/08 16:49:30 nsrmmd #1: Read operation failed and aborted.
07/10/08 16:49:30 nsrmmd #1: Read operation failed and aborted.
07/10/08 16:49:30 nsrmmd #1: Read operation failed and aborted.
07/10/08 16:49:30 nsrmmd #1: Read operation failed and aborted.
07/10/08 16:49:30 nsrmmd #1: Read operation failed and aborted.
07/10/08 16:49:30 nsrmmd #1: Read operation failed and aborted.


07/10/08 16:49:30 nsrd: cloning session:1 of 2239 save set(s) reading from netbak.001.RO 2008 MB of 4296 GB
07/10/08 16:49:31 nsrmmd #1: Read operation failed and aborted.
07/10/08 16:49:31 nsrmmd #1: Read operation failed and aborted.
07/10/08 16:49:33 nsrd: [Jukebox `LTO2', operation # 9]. Finished with status: succeeded
07/10/08 16:49:34 nsrd: netbak:cloning session done saving
07/10/08 16:49:34 ansrd: ansrd_clone FAILED: errnum is 25004 and errstr is RPC receive operation failed. A network connection could not be established with the host.
07/10/08 16:49:34 ansrd: failed to execute MODE_CLONE
nsrstage: RPC error: RPC receive operation failed. A network connection could not be established with the host.
nsrstage: Cannot open nsrstage session with netbak
nsrstage: Failed to clone any save sets
07/10/08 16:49:34 nsrd: cloning session:2234 of 2239 save set(s) done reading from netbak.001.RO
07/10/08 16:49:34 nsrd: media info: restarting nsrmmd #1 on netbak in 2 minute(s)
07/10/08 16:51:35 nsrmmd #1: Start nsrmmd #1, with PID 2128, at HOST netbak
07/10/08 16:51:37 nsrd: media info: restarting nsrmmd #1 on netbak now
07/10/08 16:51:37 nsrd: media info: nsrmmd #1 on netbak started as requested


Thanks for any input.

Dennis Dai