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08-11-2009 10:00 AM
08-11-2009 10:00 AM
vgextend /dev/vg02 /dev/dsk/c22t5d0
Verification of unique LVM disk id on each disk in the volume group
/dev/vg02 failed.
Following are the sets of disks having identical LVM disk id
/dev/dsk/c21t5d0 /dev/dsk/c22t5d0
Any ideas?? Thanks in advance.
Solved! Go to Solution.
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08-11-2009 10:05 AM
08-11-2009 10:05 AM
Re: Can't add alternate path to VG on 11.31
UNIX because I majored in cryptology...
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08-11-2009 10:06 AM
08-11-2009 10:06 AM
Re: Can't add alternate path to VG on 11.31
Are your diskgroup uses Legacy device names?
Does "vgdisplay -v vg02" depict your member PV in legacy or agile name format?
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08-11-2009 10:07 AM
08-11-2009 10:07 AM
Re: Can't add alternate path to VG on 11.31
I would suggest you to utilize the advantage of HPUX 11iv3. Use agile path and Native multipathing. No need to worry about alternate patch and all.
Single device file for all path and enjoy!!!!
Regards,
Sooraj
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08-11-2009 11:21 AM
08-11-2009 11:21 AM
Re: Can't add alternate path to VG on 11.31
PV Name /dev/dsk/c21t5d0
PV Status unavailable
Total PE 17262
Free PE 17262
Autoswitch On
Proactive Polling On
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08-11-2009 11:48 AM
08-11-2009 11:48 AM
Re: Can't add alternate path to VG on 11.31
Can you post the output of:
diskinfo /dev/rdsk/c21t5d0
diskinfo /dev/rdsk/c22t5d0
also:
pvdisplay /dev/dsk/c21t5d0
pvdisplay /dev/dsk/c22t5d0
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08-11-2009 12:54 PM
08-11-2009 12:54 PM
Re: Can't add alternate path to VG on 11.31
here are the outputs:
diskinfo /dev/rdsk/c21t5d0
SCSI describe of /dev/rdsk/c21t5d0:
vendor: EMC
product id: SYMMETRIX
type: direct access
size: 70709760 Kbytes
bytes per sector: 512
diskinfo /dev/rdsk/c22t5d0
SCSI describe of /dev/rdsk/c22t5d0:
vendor: EMC
product id: SYMMETRIX
type: direct access
size: 70709760 Kbytes
bytes per sector: 512
pvdisplay /dev/dsk/c21t5d0
--- Physical volumes ---
PV Name /dev/dsk/c21t5d0
VG Name /dev/vg02
PV Status unavailable
Allocatable yes
VGDA 2
Cur LV 0
PE Size (Mbytes) 4
Total PE 17262
Free PE 17262
Allocated PE 0
Stale PE 0
IO Timeout (Seconds) default
Autoswitch On
Proactive Polling On
pvdisplay /dev/dsk/c22t5d0
pvdisplay: Couldn't find the volume group to which
physical volume "/dev/dsk/c22t5d0" belongs.
pvdisplay: Cannot display physical volume "/dev/dsk/c22t5d0".
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08-11-2009 01:00 PM
08-11-2009 01:00 PM
Re: Can't add alternate path to VG on 11.31
I am dumbfounded.
Any chance you have EMC's SCSI "inquire" tool? With that tool (/usr/bin/inquire or /usr/sbin/inquire or /usr/local/bin/inquire) or simply "inq" - you should be able to list ech disk's serial number -- but then again the "Verification of unique LVM disk id on each disk in the volume group /dev/vg02 failed" message is bothersome.
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08-11-2009 06:07 PM
08-11-2009 06:07 PM
Re: Can't add alternate path to VG on 11.31
I have attached a simple script called showLVMinfo which will report the CPUID, VGID and PVID for one or more disks:
showLVMinfo c0t6d0
Local CPU ID = 1327355523, hex value=0x4f1dd683
/dev/rdsk/c0t6d0:
CPUID=0x4f1dd683 (1327355523), VGID 0x462b913a, PVID 0x462b913a
You can use this to read hte LVM details on each disk (just like vgextend).
Bill Hassell, sysadmin
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08-12-2009 06:19 AM
08-12-2009 06:19 AM
Re: Can't add alternate path to VG on 11.31
I thought that was the whole thing behind alternate pathing. It should be the same disk but accessible via a different path. Am I wrong in my thinking? I have two HBA's going to the same allocated SAN disks.
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08-12-2009 06:23 AM
08-12-2009 06:23 AM
Re: Can't add alternate path to VG on 11.31
Have you tried using the EMC inquire or inq utility? Maybe that other disk is indeed "different" on the other HBA presentation?
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08-12-2009 06:32 AM
08-12-2009 06:32 AM
Re: Can't add alternate path to VG on 11.31
I used EMC's syminq and both disks have the same serial number:
/dev/rdsk/c21t5d0 M(4) EMC SYMMETRIX 5772 02015A4008 70709760
/dev/rdsk/c22t5d0 M(4) EMC SYMMETRIX 5772 02015A4008 70709760
So, they are the same allocated disks.
Here's the paths from ioscan:
disk 51 0/0/6/1/0/4/0.108.44.19.0.5.0 sdisk CLAIMED DEVICE E
MC SYMMETRIX
/dev/dsk/c22t5d0 /dev/rdsk/c22t5d0
/dev/dsk/c22t5d0s1 /dev/rdsk/c22t5d0s1
disk 44 0/0/14/1/0/4/0.107.44.19.0.5.0 sdisk CLAIMED DEVICE E
MC SYMMETRIX
/dev/dsk/c21t5d0 /dev/rdsk/c21t5d0
/dev/dsk/c21t5d0s1 /dev/rdsk/c21t5d0s1
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08-12-2009 07:46 AM
08-12-2009 07:46 AM
Re: Can't add alternate path to VG on 11.31
you can allways try with agile view and vgscan.
take a look at:
#ioscan -m dsf
and check if /dev/dsk/c21t5d0 /dev/dsk/c22t5d0
have the same agile view device something like:
/dev/disk/disk4
you can also try with vgcan.
for example:
cp /etc/lvmtab /etc/lvmtab.old
vgscan -Bv -f /dev/vg02
you should get the legacy and agile view devices in you vg02, then just vgreduce legacy or agile
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08-12-2009 07:57 AM
08-12-2009 07:57 AM
Re: Can't add alternate path to VG on 11.31
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08-12-2009 09:52 AM
08-12-2009 09:52 AM
Re: Can't add alternate path to VG on 11.31
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08-12-2009 09:56 AM
08-12-2009 09:56 AM
Re: Can't add alternate path to VG on 11.31
I now remember 11.31 has somewhat different configuration rules under LVM.
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08-12-2009 09:58 AM
08-12-2009 09:58 AM
Re: Can't add alternate path to VG on 11.31
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08-12-2009 10:04 AM
08-12-2009 10:04 AM
Re: Can't add alternate path to VG on 11.31
/dev/rdisk/disk54 /dev/rdsk/c21t6d0
/dev/rdisk/disk60 /dev/rdsk/c22t6d0
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08-12-2009 10:28 AM
08-12-2009 10:28 AM
Re: Can't add alternate path to VG on 11.31
How is that done? I'm searching the man pages and don't even see that as an attribute.
Thanks!
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08-12-2009 10:55 AM
08-12-2009 10:55 AM
Re: Can't add alternate path to VG on 11.31
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08-12-2009 10:55 PM
08-12-2009 10:55 PM
SolutionIIRC if the SPC-3 bit isn't set, then an EMC SYmmetrix will generate a different WWID for each path to the same LUN, which causes HP-UX11iv3 to see each path as a different device.
This is *different* from the FA settings for 11iv2/11iv1, so your storage guys might not have realised.
HTH
Duncan
I am an HPE Employee

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08-14-2009 01:16 PM
08-14-2009 01:16 PM
Re: Can't add alternate path to VG on 11.31
If I could've given you 15 points, I would've. Thanks!
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08-14-2009 01:17 PM
08-14-2009 01:17 PM
Re: Can't add alternate path to VG on 11.31
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08-14-2009 01:17 PM
08-14-2009 01:17 PM