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тАО09-16-2002 08:21 AM
тАО09-16-2002 08:21 AM
Cluster disk lock
In a cluster of two nodes, with MC/ServiceGuard 11.12 and HP-UX 11.0:
Which the procedure is to define a cluster disk lock and VG disk lock?
in both nodeos the VG should be import?
which the way of definition of the vg is?.
Thank you.
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тАО09-16-2002 08:29 AM
тАО09-16-2002 08:29 AM
Re: Cluster disk lock
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тАО09-16-2002 08:34 AM
тАО09-16-2002 08:34 AM
Re: Cluster disk lock
You may like to look at this :
http://www.docs.hp.com/hpux/onlinedocs/B3936-90024/B3936-90024.html
Manoj Srivastava
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тАО09-16-2002 10:13 AM
тАО09-16-2002 10:13 AM
Re: Cluster disk lock
In you cluster ascii file there will be a line like FIRST_CLUSTER_LOCK_VG . Put the VG name in which the cluster lock disk is , here .
As you go down in the same file , you will reach entries for the nodes and the network paramaeters for each node .
YOu will see entry like FIRST_CLUSTER_LOCK_PV .
enter your lock pv name /dev/dsk/cxtydz as seen from both the nodes . Remember its the same physical disk as seen from both the nodes .
Yes , the VG has to exist on both the nodes .
THe cluster lock disk can be a part of a VG that holds the data in you cluster or it can be on an emtpy VG with one disk .
Whatever the case may be this VG has to be a cluster aware VG and has to be entered in the list pf cluster aware VG's at the end of the cluster ascii file .
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тАО11-15-2002 02:15 PM
тАО11-15-2002 02:15 PM
Re: Cluster disk lock
Create VG using this disk.
Than edit cmclconf.ascii file to specify :
FIRST_CLUSTER_LOCK_VG /dev/vgXX
then under each node sections specify
FIRST_CLUSTER_LOCK_PV /dev/dsk/cXtXdX
The same disks may be seen differently by hosts (for example if you use EMC or XP arrays), so you specify device name corresponding to THE SAME phisical disk (hyper) on the frame.