topic tape drive issue in Operating System - HP-UX

tape drive issue

Viney Kumar — Tue, 01 Sep 2009 07:10:43 GMT

Hi

I have hpux server with HP-UX 11.23. Im trying to take ignite backup with a external tape drive.but when I was checked with
ioscan,/dev/rmt/xx device not avialable file.

already tried with insf -e
rmsf -a /dev/rmt/c2t3d0BEST
and again
insf -e

still im not getting /dev/rmt/xx device file for same tape drive......

find ioscan -fnC ouput

]# ioscan -fnC tape
Class I H/W Path Driver S/W State H/W Type Description
=====================================================================
tape 0 0/6/1/0.4.0 stape CLAIMED DEVICE HP Ultrium 3-SCSI
/dev/rmt/3m /dev/rmt/3mn /dev/rmt/c1t4d0BEST /dev/rmt/c1t4d0BESTn
/dev/rmt/3mb /dev/rmt/3mnb /dev/rmt/c1t4d0BESTb /dev/rmt/c1t4d0BESTnb
tape 2 0/6/1/1.3.0 stape CLAIMED DEVICE HP C7438A
/dev/rmt/c2t3d0BEST /dev/rmt/c2t3d0BESTn /dev/rmt/c2t3d0DDS /dev/rmt/c2t3d0DDSn
/dev/rmt/c2t3d0BESTb /dev/rmt/c2t3d0BESTnb /dev/rmt/c2t3d0DDSb /dev/rmt/c2t3d0DDSnb

Re: tape drive issue

Fabio Ettore — Tue, 01 Sep 2009 07:27:39 GMT

Hi,

try

insf -e -H 0/6/1/1.3.0

Best regards,
Fabio

Re: tape drive issue

Viney Kumar — Tue, 01 Sep 2009 07:49:17 GMT

hi febio

thanks for reply but status still same

Re: tape drive issue

Fabio Ettore — Tue, 01 Sep 2009 08:24:58 GMT

Hi,

actually it's strange.
Just a last suggestion:

rmsf -H 0/6/1/1.3.0
ioscan -fnCtape
insef -e -H 0/6/1/1.3.0
ioscan -fnCtape

Please take commands exactly in this sequence.

If you still don't see special files, consider that you can create it manually by mknod:

cd /dev/rmt
mknod 0m c 205 0xXXYYYY

where 205 is the major number that you see from lsdev | grep stape (I suppose it's 205) and where 0xXXYYYY is the same minor number of special file c2t3d0BEST.

Then

mknod 0mn c 205 0xXXYYYY

wher this time 0xXXYYYY is the same minor number of c2t3d0BESTn.

Then

mknod 0mb c 205 0xXXYYYY

wher this time 0xXXYYYY is the same minor number of c2t3d0BESTb.

Then

mknod 0mnb c 205 0xXXYYYY

wher this time 0xXXYYYY is the same minor number of c2t3d0BESTnb.

HTH.

Best regards,
Fabio

Re: tape drive issue

Pete Randall — Tue, 01 Sep 2009 09:04:17 GMT

Just rename the device files you have now.

mv /dev/rmt/c2t3d0BEST /dev/rmt/0m
mv /dev/rmt/c2t3d0BESTn /dev/rmt/0mn
mv /dev/rmt/c2t3d0BESTb /dev/rmt/0mb
mv /dev/rmt/c2t3d0BESTnb /dev/rmt/0mnb

In the past, I had written up the whole procedure (attached) to create device files that looked the way you wanted them, but then found it that a simple rename would accomplish the same thing with a lot less effort.

Pete

Re: tape drive issue

Duncan Edmonstone — Tue, 01 Sep 2009 09:10:01 GMT

Not getting the correct Xm, Xmn, Xmb and Xmbn DSFs created is usually because there are some old ones for now removed devices hanging around... you can check this by running:

lssf /dev/rmt/* | grep '???'

All the DSFs returned by that command can be removed, and then re-run your insf and you should see the correct DSFs appear.

HTH

Duncan

Re: tape drive issue

Viney Kumar — Mon, 28 Sep 2009 06:03:47 GMT

Hi pete

Its working

thanks