Jim Buitt wrote:
> Hello,
> 
> As the subject says, I've got a brand new Sun V440 running Solaris 10,
> with 2 StorEdge L100 tape libraries, each with 2 HP LTO3 drives. 
> Running Networker 7.3.1 (storage node) and the latest recommended
> patchset from Sun.  I've Googled and found different tape drive settings
> for the /kernel/drv/st.conf file, but I have yet to come across the
> correct one.  Here are the settings I'm currently using:
> 
> tape-config-list=
>         "HP Ultrium 3", "HP Ultrium LTO3", "ULTRIUM3";
> 
> ULTRIUM3 = 2,0x3b,0,0x18659,4,0x44,0x44,0x44,0x44,3,
> 60,1200,600,1200,600,600,18000;
> 
> name="st" class="scsi" target=0 lun=0;
> name="st" class="scsi" target=1 lun=0;
> name="st" class="scsi" target=2 lun=0;
> name="st" class="scsi" target=3 lun=0;
> name="st" class="scsi" target=4 lun=0;
> name="st" class="scsi" target=5 lun=0;
> name="st" class="scsi" target=6 lun=0;
> name="st" parent="fp" target=0;
> 
> 
> Output of the 'inquire' command shows all 4 drives and jbconfig found
> the libraries with no problem.
> 
> However, when I attempt a backup of a client, I get the following:
> 
> 09/12/06 14:31:42 nsrd: media warning: /dev/rmt/0cbn writing: I/O error,
> at file 2 record 323
> 09/12/06 14:31:42 nsrd: media notice: LTO Ultrium-3 tape 001000L3 on
> /dev/rmt/0cbn is full
> 09/12/06 14:31:42 nsrd: media notice: LTO Ultrium-3 tape 001000L3 used
> 41 MB of 400 GB capacity
> 09/12/06 14:31:47 nsrd: media notice: Volume "001000L3" on device
> "/dev/rmt/0cbn": Block size is 32768 bytes not 131072 bytes. Verify the
> device configuration. Tape positioning by record is disabled.
> 
> I've also tried adding the following to the top of my
> /etc/init.d/networker script:
> 
> NSR_DEV_BLOCK_SIZE_LTO_ULTRIUM=128
> export NSR_DEV_BLOCK_SIZE_LTO_ULTRIUM
> 
> 
> and restarted Networker, but this does not help either.
> 
> Anybody have a similar working setup, or have any ideas?  Thanks in advance!
> 

The block size message is a red herring - a confusing and badly worded
error message which rarely if ever means what it says. This is probably
not related to block size or st.conf settings, but some kind of error on
your SAN or tape hardware. The fact that you wrote 41 MB before the
error appeared bears this out.

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