Hello again,

Further to my original post; I'm looking at our existing Flashcopy scripts and the related changes prior to adding our new disks. Can anybody ratify the following scripted processes (in principal) ?

Recreate Flashcopies :

(Shutdown database - quiesce i/o)

1. SMcli -n "FAStT700" -c 'recreateFlashcopy logicalDrive ["FC VOL 1-1"];
2. SMcli -n "FAStT700" -c 'create mapping logicalDrive="FC VOL 1-1" logicalUnitNumber=xx host="AIX HOST";
3.hot_add (actually cfmgr -l deviceclass)
4. chdev -l hdiskxx -a pv=clear;
5. recreatevg -y fc_vgname hdiskxx hdiskxx hdiskxx etc
6. mount /fc_filesystem

Disable Flashcopies :

1. umount /fc_filesystem
2. varyoffvg fc_vgname
3. export fc_vgname
4. rmdev -l hdiskxx (omitting -d which we run currently)
5. Smcli -n "FAStT700" -c 'delete mapping logicalDrive="FC VOL 1-1" host ="AIX HOST";
6. SMcli -n "FAStT700" -c 'disableFlashCopy logicalDrive ["FC VOL 1-1"];

Do I need to do 'chdev -l hdiskxx -a pv=yes' after the clear (step 4) in the recreate to switch the pv from defined to available again; or will the 'hot_add' do that anyway?

Also we got an error with a dirty jfs2 superblock the other night when we mounted the FC volumes. I was wondering about (a) adding a 'sync;sync;sync' call before creating the FCs to flush the buffers and (b) adding a full fsck of the FC volumes before they are mounted; I'm not sure what the policy is on this ??

Thanks in advance.