I have a 2 node GPFS cluster setup on AIX (using VIO clients with 7.1).
Installed Oracle RAC (with GPFS), and taken LUN snapshots.
I want to present/restore these luns to another gpfs cluster and restore the exact application setup.
Is there any command or procedure to restore the gpfs on to the new cluster (similar to importvg ..).
NOTE: the luns are exported to the host.
I tried the following:
() mmnsddiscover and mmdevdiscover but did not help.
() mmexportfs (its expects the FS to be unmounted on all nodes)
which is not helpful.
() mmbackupconfig (expects all the nodes to be up) again not
I'm looking for a way to backup the config and restore on another cluster.
Any inputs are highly appreciated.
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2 replies Latest Post - 2012-09-11T14:05:29Z by gcorneau
Pinned topic How to backup and restore GPFS config using LUN snapshots on AIX.
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Updated on 2012-09-11T14:05:29Z at 2012-09-11T14:05:29Z by gcorneau
dlmcnabb 120000P4JT983 Posts
gcorneau 0100003X4E138 PostsACCEPTED ANSWER
Re: How to backup and restore GPFS config using LUN snapshots on AIX.2012-09-11T14:05:29Z in response to dlmcnabbAnd specifically, the section on "Asynchronous mirroring utilizing ESS FlashCopy" (which is essentially what you've done with point-in-time storage-based copies of GPFS LUNs).
The commands you're going to be looking at are:
a. mmfsctl <gpfsdev> suspend # to flush all cache to disk for a consistent on-disk copy
b. mmfsctl <gpfsdev> resume # to resume I/O to the file system
b. mmfsctl <gpfsdev> syncFSconfig # to copy the file system definition to the remote GPFS cluster
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