topic Re: remove disk drivers in Operating System - HP-UX

remove disk drivers

John Jimenez — Thu, 09 Apr 2009 15:22:47 GMT

Yesterday I created a LUN and presented it to a HPUX 11.23 host.

After running ioscan -fnCdisk, the insf did not install any drivers. But when I do a ioscan fnCdisk the 4 paths comes up claimed

disk 151 1/0/2/1/0.97.4.239.0.5.0 sdisk CLAIMED DEVICE DGC CX500WDR10
/dev/dsk/c13t5d0 /dev/rdsk/c13t5d0
disk 152 1/0/2/1/0.97.8.239.0.5.0 sdisk CLAIMED DEVICE DGC CX500WDR10
/dev/dsk/c15t5d0 /dev/rdsk/c15t5d0
disk 201 1/0/4/1/0.97.4.239.0.5.0 sdisk CLAIMED DEVICE DGC CX500WDR10
/dev/dsk/c17t5d0 /dev/rdsk/c17t5d0
disk 202 1/0/4/1/0.97.8.239.0.5.0 sdisk CLAIMED DEVICE DGC CX500WDR10
/dev/dsk/c19t5d0 /dev/rdsk/c19t5d0

But dd shows read error: I/O error 0+0 records in and out.

Then I noticed that the raw disks in /dev/rdsk are dated last year.

crw-r----- 1 bin sys 188 0x0d5100 Aug 23 2008 c13t5d1
crw-rw-r-- 1 oracle dba 188 0x0f5100 Aug 23 2008 c15t5d1
crw-r----- 1 bin sys 188 0x115100 Aug 23 2008 c17t5d1
crw-r----- 1 bin sys 188 0x135100 Aug 23 2008 c19t5d1

How do I clean this up? I unpresented the disk from the host and it now comes up NO_HW. CAn I do the following to fix?
1) rm these 4 files /dev/rdsk
2) represent the disk to the host
3) ioscan -fnC disk
4) insf
5) ioscan -fnC disk

If this is not the correct procedure and you assist? thanks again.

Re: remove disk drivers

Pete Randall — Thu, 09 Apr 2009 15:31:33 GMT

Probably just leftovers from the past. Just use rmsf to remove all the special files related to these four, then present the luns and run insf again.

Pete

Re: remove disk drivers

Ganesan R — Thu, 09 Apr 2009 15:34:11 GMT

Hi John,

First remove the old device files using rmsf one bye one.
#rmsf

Then remove the devices files pertaining to the entire hardware path using -H option
#rmsh -H

Present the lun again.

#ioscan -fn

#insf -eH
or just
#insf -e

#ioscan -fnC disk

Re: remove disk drivers

John Jimenez — Thu, 09 Apr 2009 15:41:00 GMT

thank you Pete Yes this was a volume group and lun I deleted last year that was a different size. I was looking through the man pages when Ganasen replied.
Does this look right:

rmsf /dev/rdsk/c13t5d0

rmsh -H 1/0/2/1/0.97.4.239.0.5.0

Re: remove disk drivers

Ganesan R — Thu, 09 Apr 2009 15:46:48 GMT

Hi,

Yes. Syntax is correct. you can go ahead and remove the device files

Re: remove disk drivers

John Jimenez — Thu, 09 Apr 2009 15:58:10 GMT

the rmsf commands worked, but the rmsh did not. I also do not see rmsh in the man pages. I am running HP-UX 11.23

Re: remove disk drivers

Ganesan R — Thu, 09 Apr 2009 16:00:01 GMT

Hi John,

My sincere apologize for the spell mistake.

It is not rmsh. it is rmsf only.

#rmsf -H 1/0/2/1/0.97.4.239.0.5.0

Please bear with me....

Re: remove disk drivers

Torsten. — Thu, 09 Apr 2009 16:01:05 GMT

make rmsh to rmsf - must be a typo.

This should remind you to always remove devices using the correct procedures - or you will have problems later.

Re: remove disk drivers

John Jimenez — Thu, 09 Apr 2009 16:15:56 GMT

Thanks guys, that did the trick. I now have the complete procedure for removing Disks. Now I just have to back track, review and clean up other disks that were removed in the past.