Networker

[Networker] Label problem

2008-08-07 04:54:37
Subject: [Networker] Label problem
From: Maverick <networker-forum AT BACKUPCENTRAL DOT COM>
To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
Date: Thu, 7 Aug 2008 04:12:21 -0400
Perhaps the scsi id if the device(s) has changed in the OS? Unfortunately, this 
is sometimes quite common on Windows systems and occurs when the server is 
rebooted and Windows autoassigns scsi id´s to the devices, causing 
inconsistency between OS and NetWorker. I think this might only be valid if you 
have more than 1 tape drive, so if you don´t, you can probably stop reading 
now.,. =)

Easiest way to check if the id´s have changed is to load (not mount) a tape in 
Tape0, and then run "mt -f \\.\Tape0 status". This will give you a list of 
features the drive supports, and at the very end you will get an error if there 
is NO tape in the drive. If there IS a tape in the drive, you don´t get any 
error. Do the same procedure for you other tape drives.

So, if you for example load (again, do not mount) a tape in what NetWorker 
believes to be Tape0, but the mt command states that the drive is empty, you 
have a scsi id problem. 
The reason you should not mount the tape is that if there is indeed a scsi id 
problem, the tape will not be loaded in Tape0, but in another drive (since 
Windows has assigned the scsi id for Tape0 to another drive), and this might 
cause NetWorker to wait for a reply from the wrong drive and the mount will 
hang/fail.

If you find that the id´s have indeed changed, the fastest way to fix it is 
simply to delete the jukebox and drives and run a new jbconfig.

That´s my suggestion anyway.

There is a way to prevent this from happening again with some registry editing, 
but let me know if the scsi id´s have really changed and i will post that as 
well.

Cheers!

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