topic Re: Query: remove lun + remove snap relationship problem in HPE 3PAR StoreServ Storage

remove lun + remove snap relationship problem

Fabiopre — Fri, 28 Feb 2025 08:51:53 GMT

We removed a replica, we deleted the replica LUN, now the main LUN is left in promote mode with a snap attached if I try to remove the LUN I get an error "Not allowed: parent or child not removable" if I try to delete the snap I get this error "The volume is in a remote copy relationship and cannot be deleted." How can I remove both the lun and the snap?

Thank you

Re: remove lun + remove snap relationship problem

veeyarvi — Thu, 27 Feb 2025 09:56:25 GMT

Hi Fabiopre,

Could you share the exact steps performed? Also sharing the error screenshot might be of more help.

The VVis not showig in the RCG, I assume. Did you try removing the snap using 'removevv -snaponly" command?

Also try restarting the sysmgr (setsysmgr restart) and check.

Regards,
Veeyaarvi

Re: remove lun + remove snap relationship

Fabiopre — Fri, 28 Feb 2025 07:52:42 GMT

I have several LUNs in this state and I need to remove the replica and delete the two primary and replica LUNs but I am in this condition.

What correct procedure should I perform.

regards

Re: remove lun + remove snap relationship

veeyarvi — Fri, 28 Feb 2025 08:47:03 GMT

Hi Fabiopre,

It seems, need to 'recover' the RCGs to proceed further. The normal procedure is to use 'setrcopygroup recover <RCG>' so that there will be a reversal of the targetgroup and then there will be a sync for the group. This may result in the loss of any data written in the primary volumes since their group is already stopped.

It is better to get the HPE support involved to check and suggest further if you are not confident on this.

Regards,
Veeyaarvi

Re: remove lun + remove snap relationship

Fabiopre — Fri, 28 Feb 2025 09:14:22 GMT

I don't need to recover the data but only to delete the LUNs, I should delete everything, but to do this I have to put the copy back to normal? This costs me time and I/O

regards

Re: remove lun + remove snap relationship

veeyarvi — Fri, 28 Feb 2025 09:17:36 GMT

Hi Fabiopre,

Yes, to delete the volumes they need to be out of the RC relation. Currently it is not possible and we need to get the RCGs to normal and then remove VVs from RCGs and then delete them.

Regards,
Veeyaarvi

Query: remove lun + remove snap relationship problem

support_s — Thu, 06 Mar 2025 14:14:41 GMT

Hello,

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Re: Query: remove lun + remove snap relationship problem

Fabiopre — Fri, 07 Mar 2025 14:26:28 GMT

problem solved

Re: Query: remove lun + remove snap relationship problem

Sunitha_Mod — Mon, 10 Mar 2025 06:11:35 GMT

Hello @Fabiopre,

That's Awesome!

We are delighted to hear the problem has been resolved. Thank you for keeping us updated. Kindly click the "Accept As Solution" button for the most helpful answer so that it will be helpful for other users in the Community.