System Administration
cancel
Showing results for 
Search instead for 
Did you mean: 

hp-ux 11.31 number of persistent device file not correct

RuudPeters
Occasional Advisor

hp-ux 11.31 number of persistent device file not correct

I have a rx2660 running 11.31 with 2 hba's. Our san engineer presented 3 disks over those 2 hba's. What I see is:

root@tsxh302 [/sbin/init.d] # ioscan -m dsf
Persistent DSF Legacy DSF(s)
========================================
/dev/pt/pt4 /dev/rscsi/c2t0d0
/dev/pt/pt5 /dev/rscsi/c4t0d0
/dev/rdisk/disk6 /dev/rdsk/c1t0d0
/dev/rdisk/disk6_p1 /dev/rdsk/c1t0d0s1
/dev/rdisk/disk6_p2 /dev/rdsk/c1t0d0s2
/dev/rdisk/disk6_p3 /dev/rdsk/c1t0d0s3
/dev/rdisk/disk7 /dev/rdsk/c1t1d0
/dev/rdisk/disk7_p1 /dev/rdsk/c1t1d0s1
/dev/rdisk/disk7_p2 /dev/rdsk/c1t1d0s2
/dev/rdisk/disk7_p3 /dev/rdsk/c1t1d0s3
/dev/rdisk/disk14 /dev/rdsk/c3t1d4
/dev/rdisk/disk15 /dev/rdsk/c3t1d5
/dev/rdisk/disk16 /dev/rdsk/c3t1d6
/dev/rdisk/disk17 /dev/rdsk/c5t1d4
/dev/rdisk/disk18 /dev/rdsk/c5t1d5
/dev/rdisk/disk19 /dev/rdsk/c5t1d6

I expected only disk14/disk15 and disk16 so something like this:

Persistent DSF Legacy DSF(s)
========================================
/dev/disk/disk14 /dev/dsk/c3t1d4
/dev/dsk/c5t1d4

Persistent DSF Legacy DSF(s)
========================================
/dev/disk/disk15 /dev/dsk/c3t1d5
/dev/dsk/c5t1d5

Persistent DSF Legacy DSF(s)
========================================
/dev/disk/disk16 /dev/dsk/c3t1d6
/dev/dsk/c5t1d6

Can someone explain me what is going on???

Regards,
Ruud Peters
3 REPLIES
Torsten.
Acclaimed Contributor

Re: hp-ux 11.31 number of persistent device file not correct

I think the LUNS are only presented to 1 HBA or there is a zoning conflict.

Looks like the server cannot "see" multiple pathes.

Hope this helps!
Regards
Torsten.

__________________________________________________
There are only 10 types of people in the world -
those who understand binary, and those who don't.

__________________________________________________
No support by private messages. Please ask the forum!

If you feel this was helpful please click the KUDOS! thumb below!   
Duncan Edmonstone
Honored Contributor

Re: hp-ux 11.31 number of persistent device file not correct

Are these LUNs by any chance presented from an EMC DMX? Have the SAN enegineers made sure they are on a supported rev of DMX firmware for 11iv3 and that they have the SPC-2 bit set for the FA?

HTH

Duncan

HTH

Duncan
RuudPeters
Occasional Advisor

Re: hp-ux 11.31 number of persistent device file not correct

We checked the zoning. Looks ok. The 3 disks are presented through the 2 hba's.

SPC-2 bit is set. I'm going to check the rev. of the DMX firmware.