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тАО07-28-2008 06:35 AM
тАО07-28-2008 06:35 AM
I'm going to try to explain you as clearest as I can my environment. I've got 2 machines, A and B connected to a disk array and a third machine connected to another disk array. The disks arrays are synchronized using SRDF.
Machine A mount a vg with one LUN assigned, machine B mount several vg's with several LUN's and machine C must mount all the vg's (mounted on A and B) once splitted the disk arrays to perform the backup over them. vg's on machine C has been created vgexport/vgimporting from the machines A and B.
The question is. The special file group for the vg's must be the same number on source machines (A and B) and on destination machine C? If not, what can happen? I will be no able to mount the vg on C?
I hope been clear...
Thanks in advance!!
Solved! Go to Solution.
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тАО07-28-2008 06:39 AM
тАО07-28-2008 06:39 AM
Re: Must mknod be equal?
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тАО07-28-2008 06:44 AM
тАО07-28-2008 06:44 AM
Re: Must mknod be equal?
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тАО07-28-2008 06:51 AM
тАО07-28-2008 06:51 AM
Re: Must mknod be equal?
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тАО07-28-2008 06:54 AM
тАО07-28-2008 06:54 AM
Re: Must mknod be equal?
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тАО07-28-2008 07:07 AM
тАО07-28-2008 07:07 AM
Solutionserver A, vg01 group=05
server B, vg01 group=05
server B, vg02 group=06
server B, vg03 group=07
Then on server C you could have for each of the volume groups
server C, vg01 group=05 (srv A vg01)
server C, vg02 group=06 (srv B vg01)
server C, vg03 group=07 (srv B vg02)
server C, vg04 group=08 (srv B vg03)
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тАО07-28-2008 07:31 AM
тАО07-28-2008 07:31 AM
Re: Must mknod be equal?
We have this configuration in our data center in several service guard clusters. The minor numbers in the nodes are always identical for non vg00 vgs because they are referencing the same disks. Thus, the -s option in vgimport etc. But the third vg which we use for BCV's is not unique. This is because the disks are not the same.
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тАО07-29-2008 09:39 PM
тАО07-29-2008 09:39 PM
Re: Must mknod be equal?
But for BCV the pair volume can be mount using different VG minor number.