On Wed, 4 Jan 2006, Olaf Zaplinski wrote:

OZ> whenever I enable CDI, I cannot mount my tapes any longer. Any ideas? With
OZ> CDI disabled, everything works well. Server is NW 7.1.4 / Redhat EL 3
OZ> 
OZ> 
OZ> In /var/log/messages, I see:
OZ> 
OZ> Jan  4 16:16:28 r2d2 kernel: st0: Block limits 1 - 16777215 bytes.
OZ> Jan  4 16:16:39 r2d2 kernel: st0: Incorrect block size.
OZ> Jan  4 16:16:39 r2d2 logger: NetWorker media: (warning) TapeAlert flag
OZ> "Diagnostics required" has been posted for /dev/nst0
OZ> Jan  4 16:16:52 r2d2 kernel: st0: Incorrect block size.
OZ> Jan  4 16:16:52 r2d2 logger: NetWorker media: (warning) /dev/nst0 reading:
OZ> Success
OZ> Jan  4 16:17:04 r2d2 kernel: st0: Incorrect block size.
OZ> Jan  4 16:17:05 r2d2 logger: NetWorker media: (warning) /dev/nst0 reading:
OZ> no tape label found
OZ> 
OZ> 
OZ> /nsr/logs/daemon.log:
OZ> 
OZ> 01/04/06 16:16:17 nsrd: /dev/nst0 Verify label operation in progress
OZ> 01/04/06 16:16:39 nsrd: media warning: TapeAlert flag "Diagnostics required"
OZ> has been posted for /dev/nst0
OZ> 01/04/06 16:16:52 nsrd: media warning: /dev/nst0 reading: Success
OZ> 01/04/06 16:17:05 nsrd: media warning: /dev/nst0 reading: no tape label
OZ> found
OZ> 01/04/06 16:17:05 nsrd: /dev/nst0 Eject operation in progress
OZ> 01/04/06 16:17:37 nsrd: Jukebox 'L700e' failed: expected volume '000166' got
OZ> 'NULL'.

It seems like you have the same problem though. It still can't read your 
labels. Try this:

1.  Set the block size with mt to variable block length - mt -f /dev/nst0 
setblk 0
2.  Set the block size to the correct value within networker for each 
device. Edit this with nwadmin or similar tools
3.  Consider installing the mt_st package and create an stinit.def file if 
there isn't one that includes your device already. If you wish, try 
running stinit from the networker startup script before running networker.

//Oscar

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