Hi,

This is my first post.

I have just moved to a new backup server, a Sun V445 running Solaris 10, 
and using Legato 7.2.2.  I have noticed that when a new tape is being 
labeled and when a tape becomes full I get I/O errors.  Last night a tape 
filled gave an I/O error and then my backup jobs hung.  Legato and Sun 
believe it is the st.conf file not being configured properly.  Our current 
st.conf is the default.  Every time I have add options I got a error 
running the update_drv command.  Sorry I don't have the error available at 
the moment.  Our tape Library is a L700e with LTO2 IBm drives.  I was 
wondering if any one had an example of st.conf with the options it.  Or 
have any other ideas that could fix my IO errors.

Our old backup server is an SGI Origin 300. MOved to a new OS for our 
netwoker env.

Tape is being labeled:
11/01/07 17:05:54 nsrd: media info: loading volume - into /dev/rmt/S0cbn
11/01/07 17:05:54 nsrd: media info: loading volume 207379 
into /dev/rmt/S5cbn
11/01/07 17:07:02 nsrd: /dev/rmt/S0cbn Verify label operation in progress
11/01/07 17:07:04 nsrd: media warning: /dev/rmt/S0cbn reading: I/O error
11/01/07 17:07:04 nsrd: media warning: /dev/rmt/S0cbn reading: Tape label 
read for volume ? in pool ?, is not recognised by Networker: I/O error
11/01/07 17:07:05 nsrd: /dev/rmt/S0cbn Label without mount operation in 
progress
11/01/07 17:07:05 nsrd: media info: LTO Ultrium-2 tape  will be over-written
11/01/07 17:07:13 nsrd: /dev/rmt/S0cbn Mount operation in progress

Got this error when the backup jobs hung:
11/02/07 21:28:30 nsrd: media notice: LTO Ultrium-2 tape 207142 
on /dev/rmt/S9cbn is full
11/02/07 21:28:30 nsrd: media notice: LTO Ultrium-2 tape 207142 used 322 GB 
of 200 GB capacity
11/02/07 21:29:30 nsrd: media warning: /dev/rmt/S9cbn reading: I/O error
11/02/07 21:29:53 nsrd: bearcat.starkey.com:RMAN:FULL_GLP_62j03853 done 
saving to pool 'Ora Apps' (207129) 4403 MB
11/02/07 21:30:00 nsrd: savegroup info: starting  Netware_02 (with 2 client
(s))
11/02/07 21:30:02 nsrd: media notice: Volume "207142" on 
device "/dev/rmt/S9cbn": Block size is 50331649 bytes not 67108864 bytes. 
Verify the device configuration
. Tape positioning by record is disabled.

I do have a ticket open with legato.  That person thought it was a bunch of 
bad tapes in the library.  The ticket is keep open until Monday.  We saw 
some block size messages and then recommend me to add the following line 
to /etc/init.d/networker file:
 

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