topic Re: missing device paths in Operating System - HP-UX

missing device paths

whiz_kid911 — Sat, 30 May 2009 13:29:11 GMT

hello
OS 11.23
i have the first drive with just a SAN based device path where as the second drive is giving all device paths.

I tried doing rmsf and recreated device paths using ioscan and insf, still it did not create all the device paths. has anyone come across such issues?

rhino1:/# ioscan -funC tape
Class I H/W Path Driver S/W State H/W Type Description
========================================================================
tape 6 0/4/2/0.45.0.255.1.3.0 stape CLAIMED DEVICE HP Ultrium 3-SCSI
/dev/rmt/c9t3d0BEST /dev/rmt/c9t3d0BESTn
/dev/rmt/c9t3d0BESTb /dev/rmt/c9t3d0BESTnb
tape 7 0/4/2/0.45.0.255.1.3.1 stape CLAIMED DEVICE HP Ultrium 3-SCSI
/dev/rmt/7m /dev/rmt/c9t3d1BEST
/dev/rmt/7mb /dev/rmt/c9t3d1BESTb
/dev/rmt/7mn /dev/rmt/c9t3d1BESTn
/dev/rmt/7mnb /dev/rmt/c9t3d1BESTnb

Re: missing device paths

Hasan Atasoy — Sat, 30 May 2009 17:03:31 GMT

hi ;

try

rm /dev/rmt/*

insf -e -C tape

Hasan

Re: missing device paths

Syed Nazer Abbas — Sun, 31 May 2009 03:38:01 GMT

login to EVA command view (our SAN)

1) verify you have presented the vdisks to our host

select your EVA network
select host
select presentation
do you see the disks and the lun numbers assigned

if none shows up, then
2)create a vdisk
3) select presentation
4) select the host
5) it will auto assign a lun or you can select using Assing luns.

then login to our unix
do ioscan -f
insf -e

now check ioscan -fnkCdisk

they should show up as claimed.

Re: missing device paths

johnsonpk — Sun, 31 May 2009 06:15:19 GMT

Hi Syed ,

I doubt ,you have seen the Author's Post !!

The thread is related to tape not disk

Rgds
Johnson

Re: missing device paths

Robert-Jan Goossens — Sun, 31 May 2009 07:23:19 GMT

Hi,

Did someone create links (ln -s) from /dev/rmt/7* --> /dev/rmt/c9t3d1BEST* ?

Try this;

# rmsf -H 0/4/2/0.45.0.255.1.3.0
# rmsf -H 0/4/2/0.45.0.255.1.3.0

Check if all device files have been remove from /dev/rmt otherwise remove them by hand (rm).

# insf -eH 0/4/2/0.45.0.255.1.3.0
check output from "ioscan -fnCtape"
# insf -eH 0/4/2/0.45.0.255.1.3.0
check output from "ioscan -fnCtape" again.

Regards,
Robert-Jan

Re: missing device paths

Asif Sharif — Sun, 31 May 2009 08:54:58 GMT

You can perform this also.

# rmsf -H 0/4/2/0.45.0.255.1.3.0
# rmsf -H 0/4/2/0.45.0.255.1.3.1
# insf -e

Regards,
Asif Sharif

Re: missing device paths

sujit kumar singh — Tue, 02 Jun 2009 11:28:51 GMT

Hi

do an insf -e

/dev/rmt/c9t3d0BEST /dev/rmt/c9t3d0BESTn
/dev/rmt/c9t3d0BESTb /dev/rmt/c9t3d0BESTnb

These can be well used directly with commands as well as in scripts.

use these in assumed places like

/dev/rmt/c9t3d0BEST -- for /dev/rmt/*m
/dev/rmt/c9t3d0BESTn -- /dev/rmt/*mn
/dev/rmt/c9t3d0BESTb -- /dev/rmt/*mb

/dev/rmt/c9t3d0BESTnb -- /dev/rmt/*mnb

Regards
sujit