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тАО01-07-2007 04:44 PM
тАО01-07-2007 04:44 PM
cross device link issue
Hi,
I have two nodes running MC/SG connect to EMC Clariion. I have a volume that I cannot mounted and I am getting the following error message. This volume is using EMC snap view to create a snapshot from another VG. I suspect it was due to snapshot the two VG has two same VGID that's why it cannot be mounted. Any opinion.
sm1a# vgchange -a e /dev/backupvg00
vgchange: Warning: Couldn't attach to the volume group physical volume "/dev/dsk/c5t9d2":
Cross-device link
vgchange: Activation mode requested for the volume group "/dev/backupvg00" conflicts with configured mode.
vgchange: Warning: couldn't query physical volume "/dev/dsk/c5t9d2":
The specified path does not correspond to physical volume attached to
this volume group
vgchange: Warning: couldn't query all of the physical volumes.
I have two nodes running MC/SG connect to EMC Clariion. I have a volume that I cannot mounted and I am getting the following error message. This volume is using EMC snap view to create a snapshot from another VG. I suspect it was due to snapshot the two VG has two same VGID that's why it cannot be mounted. Any opinion.
sm1a# vgchange -a e /dev/backupvg00
vgchange: Warning: Couldn't attach to the volume group physical volume "/dev/dsk/c5t9d2":
Cross-device link
vgchange: Activation mode requested for the volume group "/dev/backupvg00" conflicts with configured mode.
vgchange: Warning: couldn't query physical volume "/dev/dsk/c5t9d2":
The specified path does not correspond to physical volume attached to
this volume group
vgchange: Warning: couldn't query all of the physical volumes.
abc
3 REPLIES 3
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тАО01-07-2007 05:06 PM
тАО01-07-2007 05:06 PM
Re: cross device link issue
Shalom,
I've run into this with SG a few times. First make sure the snapshot operation is really done.
Possible solutions:
http://www.docs.hp.com/en/A3262-90051/A3262-90051.pdf
http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=1025950
http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=1025994
http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=1042689
I'm not sure I found the exact solution because the cause can be different. I recall a simple two step vgchange solution cleaning this up. It's probably in the pdf I posted first.
SEP
I've run into this with SG a few times. First make sure the snapshot operation is really done.
Possible solutions:
http://www.docs.hp.com/en/A3262-90051/A3262-90051.pdf
http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=1025950
http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=1025994
http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=1042689
I'm not sure I found the exact solution because the cause can be different. I recall a simple two step vgchange solution cleaning this up. It's probably in the pdf I posted first.
SEP
Steven E Protter
Owner of ISN Corporation
http://isnamerica.com
http://hpuxconsulting.com
Sponsor: http://hpux.ws
Twitter: http://twitter.com/hpuxlinux
Founder http://newdatacloud.com
Owner of ISN Corporation
http://isnamerica.com
http://hpuxconsulting.com
Sponsor: http://hpux.ws
Twitter: http://twitter.com/hpuxlinux
Founder http://newdatacloud.com
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тАО01-11-2007 04:23 AM
тАО01-11-2007 04:23 AM
Re: cross device link issue
see vgchid
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тАО01-11-2007 05:10 AM
тАО01-11-2007 05:10 AM
Re: cross device link issue
0) make sure that the minor device numbers on all nodes are unique. It's ok to have the same minor device number (e.g.) 0x050000 for /dev/vg*/group on different nodes but there can be at most one 0x050000 any one node. Your first task is to do an ls -l /dev/vg*/group on all the nodes and make sure that there are no dupicate minor device numbers on a node. This can lead to extremely bizarre and chaotic behavior.
1) Make sure that you do an ioscan -fn after connecting new disks and then do an insf to create the device nodes.
1) Make sure that you do an ioscan -fn after connecting new disks and then do an insf to create the device nodes.
If it ain't broke, I can fix that.
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