Recovering to a snapclone

[Matthew Pegge_1]

We are doing some application upgrades and want to take a snapclone before we upgrade, then after the upgrade has completed OK, revert back to the pre-upgrade clone. We have an EVA3000 with HPUX11i. I have created the clones ok and can mount them etc.. however my question is there an easier way to revert to the clone disk than cp -R of the filesystems we want to recover? I can't just rename the mount points as this will change the hardware path and this will mess other things up. Any ideas... I know with the VA business copy you can do armcopy -r to do this but what about EVA?

[Uwe Zessin]

A finished SnapClone is a new, independent virtual disk which has no relation to the original vdisk. There is no snap-back.

To ease the transition, you can change the LUN WWN of the clone vdisk to that of the original as long as the vdisk is unpresented. This should make sure that you don't get a new device as Secure Path does a persistent binding based on the LUN WWN. Make sure you never have two vdisks with the same LUN WWN.

[Matthew Pegge_1]

Hi,

I like the WWN chane idea... how would that work then? - Unpresent both LUN's, swap WWN's, re-present LUN's... job done?

Can you change the WWN using the command view interface or via spmgr?