topic Re: HP SSL1016 Tape Autoloader - cannot see tape device in ioscan in Operating System - HP-UX

HP SSL1016 Tape Autoloader - cannot see tape device in ioscan

Sunny Jaisinghani — Wed, 28 Oct 2009 04:45:17 GMT

Hello Gurus,

I have a rp7420 11iv1 box connected to a HP SSL1016 Tape Autoloader. It has a single LTO2 drive with 16 slots.

I have HP dataprotector for backups. When i started the backup i saw that it uses the device /dev/rmt/4mn for backup.

However i cannot see the same tape device in the ioscan output on the server.

#ll /dev/rmt/*mn
crw-rw-rw- 2 bin bin 205 0x023040 Nov 20 2006 /dev/rmt/0mn
crw-rw-rw- 2 bin bin 205 0x086040 Aug 16 2007 /dev/rmt/1mn
crw-rw-rw- 2 bin bin 205 0x095040 Oct 27 09:38 /dev/rmt/2mn
crw-rw-rw- 2 bin bin 205 0x025040 Dec 20 2007 /dev/rmt/3mn
crw-rw-rw- 2 bin bin 205 0x0a5040 Dec 19 2007 /dev/rmt/4mn

#ioscan -fnC tape
Class I H/W Path Driver S/W State H/W Type Description
========================================================================
tape 1 1/0/12/1/0.6.0 stape CLAIMED DEVICE QUANTUM DLT8000
/dev/rmt/1m /dev/rmt/c8t6d0BEST
/dev/rmt/1mb /dev/rmt/c8t6d0BESTb
/dev/rmt/1mn /dev/rmt/c8t6d0BESTn
/dev/rmt/1mnb /dev/rmt/c8t6d0BESTnb
tape 2 1/0/14/1/0.5.0 stape CLAIMED DEVICE HP Ultrium 2-SC
SI
/dev/rmt/2m /dev/rmt/c9t5d0BEST
/dev/rmt/2mb /dev/rmt/c9t5d0BESTb
/dev/rmt/2mn /dev/rmt/c9t5d0BESTn
/dev/rmt/2mnb /dev/rmt/c9t5d0BESTnb

#mt -f /dev/rmt/4mn status
on tape open: No such device or address

The backups run properly.

I wonder why i can't see the device /dev/rmt/4mn in ioscan output.

Can somebody clarify

Sunny

Re: HP SSL1016 Tape Autoloader - cannot see tape device in ioscan

Johnson Punniyalingam — Wed, 28 Oct 2009 04:49:10 GMT

ioscan -fn
insf -e

ioscan -fnC tape

Re: HP SSL1016 Tape Autoloader - cannot see tape device in ioscan

Sunny Jaisinghani — Wed, 28 Oct 2009 04:59:13 GMT

Still the same....

i did

insf -C tape

instead of

insf -e

Re: HP SSL1016 Tape Autoloader - cannot see tape device in ioscan

Torsten. — Wed, 28 Oct 2009 05:03:06 GMT

It would be nice to see all content of /dev/rmt, please post.

# ls -l /dev/rmt

Re: HP SSL1016 Tape Autoloader - cannot see tape device in ioscan

Johnson Punniyalingam — Wed, 28 Oct 2009 05:08:04 GMT

>>>I have HP dataprotector for backups. When i started the backup i saw that it uses the device /dev/rmt/4mn for backup<<

how did you check above statement ?

Can you check again ? in DP->Backu specfication->

Re: HP SSL1016 Tape Autoloader - cannot see tape device in ioscan

Sunny Jaisinghani — Wed, 28 Oct 2009 05:24:38 GMT

#ls -lt /dev/rmt
total 0
crw-rw-rw- 2 bin bin 205 0x095040 Oct 27 09:38 2mn
crw-rw-rw- 2 bin bin 205 0x095040 Oct 27 09:38 c9t5d0BESTn
crw-rw-rw- 2 bin bin 205 0x086000 Sep 25 22:45 c8t6d0BEST
crw-rw-rw- 2 bin bin 205 0x086000 Sep 25 22:45 1m
crw-rw-rw- 2 bin bin 205 0x025040 Dec 20 2007 3mn
crw-rw-rw- 2 bin bin 205 0x025040 Dec 20 2007 c2t5d0BESTn
crw-rw-rw- 2 bin bin 205 0x0a50c0 Dec 19 2007 4mnb
crw-rw-rw- 2 bin bin 205 0x0a5000 Dec 19 2007 c10t5d0BEST
crw-rw-rw- 2 bin bin 205 0x0a5040 Dec 19 2007 c10t5d0BESTn
crw-rw-rw- 2 bin bin 205 0x0a5000 Dec 19 2007 4m
crw-rw-rw- 2 bin bin 205 0x0a5040 Dec 19 2007 4mn
crw-rw-rw- 2 bin bin 205 0x0a5080 Dec 19 2007 c10t5d0BESTb
crw-rw-rw- 2 bin bin 205 0x0a5080 Dec 19 2007 4mb
crw-rw-rw- 2 bin bin 205 0x0a50c0 Dec 19 2007 c10t5d0BESTnb
crw-rw-rw- 2 bin bin 205 0x025000 Dec 19 2007 c2t5d0BEST
crw-rw-rw- 2 bin bin 205 0x025080 Dec 19 2007 c2t5d0BESTb
crw-rw-rw- 2 bin bin 205 0x0250c0 Dec 19 2007 c2t5d0BESTnb
crw-rw-rw- 2 bin bin 205 0x025080 Dec 19 2007 3mb
crw-rw-rw- 2 bin bin 205 0x0250c0 Dec 19 2007 3mnb
crw-rw-rw- 2 bin bin 205 0x025000 Dec 19 2007 3m
crw-rw-rw- 2 bin bin 205 0x086040 Aug 16 2007 1mn
crw-rw-rw- 2 bin bin 205 0x086040 Aug 16 2007 c8t6d0BESTn
crw-rw-rw- 2 bin bin 205 0x023040 Nov 20 2006 0mn
crw-rw-rw- 2 bin bin 205 0x023040 Nov 20 2006 c2t3d0BESTn
crw-rw-rw- 1 bin bin 205 0x023000 Nov 20 2006 c2t3d0BEST
crw-rw-rw- 2 bin bin 205 0x023080 Nov 20 2006 c2t3d0BESTb
crw-rw-rw- 2 bin bin 205 0x0230c0 Nov 20 2006 c2t3d0BESTnb
crw-rw-rw- 2 bin bin 205 0x023080 Nov 20 2006 0mb
crw-rw-rw- 2 bin bin 205 0x0230c0 Nov 20 2006 0mnb
-rw------- 1 root sys 0 Aug 27 2006 0m
crw-rw-rw- 2 bin bin 205 0x095000 Jul 15 2006 c9t5d0BEST
crw-rw-rw- 2 bin bin 205 0x095000 Jul 15 2006 2m
crw-rw-rw- 2 bin bin 205 0x0950c0 Jul 15 2006 c9t5d0BESTnb
crw-rw-rw- 2 bin bin 205 0x095080 Jul 15 2006 c9t5d0BESTb
crw-rw-rw- 2 bin bin 205 0x095080 Jul 15 2006 2mb
crw-rw-rw- 2 bin bin 205 0x0950c0 Jul 15 2006 2mnb
crw-rw-rw- 2 bin bin 205 0x0860c0 Jul 15 2006 1mnb
crw-rw-rw- 2 bin bin 205 0x0860c0 Jul 15 2006 c8t6d0BESTnb
crw-rw-rw- 2 bin bin 205 0x086080 Jul 15 2006 1mb
crw-rw-rw- 2 bin bin 205 0x086080 Jul 15 2006 c8t6d0BESTb
crw-r--r-- 1 root root 205 0xfffffe Jul 15 2006 stape_config

I have a GUI interface of DP. I saw in messages that the backup device being used is /dev/rmt/4mn

Sunny

Re: HP SSL1016 Tape Autoloader - cannot see tape device in ioscan

Sunny Jaisinghani — Wed, 28 Oct 2009 05:34:04 GMT

I am sorry.
I made a silly mistake.

i was looking at the wrong server.

Thanks for replies

Re: HP SSL1016 Tape Autoloader - cannot see tape device in ioscan

Sunny Jaisinghani — Wed, 28 Oct 2009 05:35:16 GMT

I was checking the wrong server :)

Re: HP SSL1016 Tape Autoloader - cannot see tape device in ioscan

Torsten. — Wed, 28 Oct 2009 05:35:28 GMT

Not sure if data protector is really using 4mn, but however, you can run into problems if you - let's say connect a DLT with ID 3 first and a DDS with the same ID instead later.

If you then manually change *anything*, the problems may be worst.

Have a look at your 0m device ;-))

I would consider to delete them all and re-create. Notice - you will need to adjust DP after this.

Re: HP SSL1016 Tape Autoloader - cannot see tape device in ioscan

Torsten. — Wed, 28 Oct 2009 05:36:21 GMT

>> i was looking at the wrong server.

:-)

That happens.