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04-01-2009 09:15 PM
04-01-2009 09:15 PM
Agile multipathing issue while configuring two node cluster
Hi,
We are facing problem while configuring second node lock disk after importing the same from first node. We are not able to convert the LVM Path to agile path in /etc/lvmtab. Please find below the steps we are using
# ioscan -N -fnC disk
disk12 64000/0xfa00/0×7 esdisk CLAIMED DEVICE HP HSV210
/dev/dsk/disk12 /dev/rdsk/disk12
# mkdir /dev/vglock
# mknod /dev/vglock/group c 64 0x010000
# ll /dev/vglock
crw-r–r– 1 root sys 64 0×010000 Jul 31 14:42 group
# pvcreate -f /dev/rdsk/disk12
Physical volume “/dev/rdisk/disk12 has been successfully created.
-> Create the VG with the HP-UX 11.31 agile Multipathing instead of LVM Alternate Paths.
#vgcreate /dev/vglock /dev/dsk/disk12
Volume group “/dev/vglock” has been successfully created.
Volume Group configuration for /dev/vglock has been saved in /etc/lvmconf/vglock.conf
#strings /etc/lvmtab
/dev/vglock
/dev/dsk/disk12
#vgexport -v -p -s -m vglock.map /dev/vglock
#rcp vglock.map service2:/
-> On service2.hpindia.com:
#mkdir /dev/vglock
#mknod /dev/vglock/group c 64 0x010000
#vgimport -v -s -m vglock.map vglock
#vgchange -a y vglock
Please tell us the next step for the same.
Thanks in advance
We are facing problem while configuring second node lock disk after importing the same from first node. We are not able to convert the LVM Path to agile path in /etc/lvmtab. Please find below the steps we are using
# ioscan -N -fnC disk
disk12 64000/0xfa00/0×7 esdisk CLAIMED DEVICE HP HSV210
/dev/dsk/disk12 /dev/rdsk/disk12
# mkdir /dev/vglock
# mknod /dev/vglock/group c 64 0x010000
# ll /dev/vglock
crw-r–r– 1 root sys 64 0×010000 Jul 31 14:42 group
# pvcreate -f /dev/rdsk/disk12
Physical volume “/dev/rdisk/disk12 has been successfully created.
-> Create the VG with the HP-UX 11.31 agile Multipathing instead of LVM Alternate Paths.
#vgcreate /dev/vglock /dev/dsk/disk12
Volume group “/dev/vglock” has been successfully created.
Volume Group configuration for /dev/vglock has been saved in /etc/lvmconf/vglock.conf
#strings /etc/lvmtab
/dev/vglock
/dev/dsk/disk12
#vgexport -v -p -s -m vglock.map /dev/vglock
#rcp vglock.map service2:/
-> On service2.hpindia.com:
#mkdir /dev/vglock
#mknod /dev/vglock/group c 64 0x010000
#vgimport -v -s -m vglock.map vglock
#vgchange -a y vglock
Please tell us the next step for the same.
Thanks in advance
3 REPLIES 3
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04-01-2009 10:10 PM
04-01-2009 10:10 PM
Re: Agile multipathing issue while configuring two node cluster
You should have used the "-N" option on the vgimport. So to fix it you'll need to vgexport it again on the 2nd node and then:
#mkdir /dev/vglock
#mknod /dev/vglock/group c 64 0x010000
#vgimport -v -N -s -m vglock.map vglock
Incidentally, why doi you have a volume group called vglock? Are all the other disks in the cluster under VxVM control? If not, there's no reason to have a dedicated disk for the cluster lock, it can be just any disk in any cluster VG - you don't have to dedicate it to just lock tasks.
Also, from your node names, are you an HP employee? If so there are internal forums and mailing lists you should be using before coming to the ITRC forum. e-mail me for details (you should be able to find me in the internal directory)
HTH
Duncan
I am an HPE Employee
#mkdir /dev/vglock
#mknod /dev/vglock/group c 64 0x010000
#vgimport -v -N -s -m vglock.map vglock
Incidentally, why doi you have a volume group called vglock? Are all the other disks in the cluster under VxVM control? If not, there's no reason to have a dedicated disk for the cluster lock, it can be just any disk in any cluster VG - you don't have to dedicate it to just lock tasks.
Also, from your node names, are you an HP employee? If so there are internal forums and mailing lists you should be using before coming to the ITRC forum. e-mail me for details (you should be able to find me in the internal directory)
HTH
Duncan
I am an HPE Employee
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04-19-2009 11:35 PM
04-19-2009 11:35 PM
Re: Agile multipathing issue while configuring two node cluster
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04-20-2009 12:19 AM
04-20-2009 12:19 AM
Re: Agile multipathing issue while configuring two node cluster
Hi it is perhaps that you only wish the Persistent DSFs being reflected in the /etc/lvmtab right?
The native Dyanmic Multipathing for Active active disk arrays and load balancing is functional whatever Persistent or legacy naming conventions that you might use.
regards
sujit
The native Dyanmic Multipathing for Active active disk arrays and load balancing is functional whatever Persistent or legacy naming conventions that you might use.
regards
sujit
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