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 Post subject: Move cpg copy with remote copy group
PostPosted: Thu Jun 13, 2019 1:45 am 

Joined: Tue Oct 22, 2013 10:18 am
Posts: 16
Hello everyone,
I have a question.
Is it possible to change the cpg copy group in a virtual volume within a remote copy group?
I'll explain myself better.
Currently my virtual volumes, which are part of several remote copy groups, point to nl disks for copy cpg.
I bought fc discs and want to move the cpg copy group to these discs.
It's possible?

Thank you

Greetings


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 Post subject: Re: Move cpg copy with remote copy group
PostPosted: Thu Jun 13, 2019 7:13 am 

Joined: Mon Sep 21, 2015 2:11 pm
Posts: 854
Location: Europe
Tune volume. No problem as long as you have Dynamic Optimization license (if your 3PAR is less than a couple of years it is a part of the all-inclusive license).

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 Post subject: Re: Move cpg copy with remote copy group
PostPosted: Thu Jun 13, 2019 7:37 am 

Joined: Tue Oct 22, 2013 10:18 am
Posts: 16
Thanks for your answer.
Unfortunately my 3par 7200 is from 2013 and does not have the Dynamic optimization license.
Is it possible to move the copy cpg the same?Maybe by stopping the remote copy group, changing the copy gpg and then restart the replication?
Or I have to remove the virtual volume from the remote copy group, modify the copy cpg and then put it back in the remote copy group. This procedure forces me to replicate again from scratch. Corrected?


Thank you

Greetings


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 Post subject: Re: Move cpg copy with remote copy group
PostPosted: Thu Jun 13, 2019 8:15 am 

Joined: Mon Sep 21, 2015 2:11 pm
Posts: 854
Location: Europe
It depends....

Are you using any other snapshots?
Are you using sync or periodic replication?

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 Post subject: Re: Move cpg copy with remote copy group
PostPosted: Thu Jun 13, 2019 8:23 am 

Joined: Tue Oct 22, 2013 10:18 am
Posts: 16
Thanks for the reply

Are you using any other snapshots?
Only snapshots for replication
Are you using sync or periodic replication?
Yes, I'm using periodic async


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 Post subject: Re: Move cpg copy with remote copy group
PostPosted: Thu Jun 13, 2019 8:51 am 

Joined: Mon Sep 21, 2015 2:11 pm
Posts: 854
Location: Europe
pazzoide76 wrote:
Thanks for the reply

Are you using any other snapshots?
Only snapshots for replication
Are you using sync or periodic replication?
Yes, I'm using periodic async


With periodic the correct way is to stop replication, remove the volume from the RC group, run freespace -f <vvname> in CLI, edit the copy space on the volume(s), reconfigure replication and resync the entire volume.


What might work is...
If you have a CPG used only for copy space, edit that CPG (you might need to use CLI) to use FC drives rather than NL drives and run tunesys to move the existing data.

What also possibly might work, but I'm very unsure is simply edit the volumes and change copy CPG and run a complete tunesys. I'm really unsure about this one as it might not fix anything.


With DO if would be three clicks ... Tune VV -> change copy CPG -> Tune.

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