5 Replies Latest reply: Apr 19, 2013 1:24 AM by SJOERDHOOFT RSS

Convert MetroCluster in ordinary HA Pair

SJOERDHOOFT
Currently Being Moderated

Hey everyone,

 

we have a metrocluster which seems to be setup normally. Aggr0 is mirrored between the filers, and has only one raidgroup on each head. The original reason for creating a metrocluster is not valid anymore since the two heads are only a few meter away from each other. The filers are almost end of life, and almost out of diskspace. For budget reasons, we've decided to not buy anymore disks/shelves, but instead break the current aggregate mirrors so we free up the disks holding the copies.

 

Looking for the correct way to do this, I found two methods:

 

Splitting the aggregate is one option, as explained here: https://library.netapp.com/ecmdocs/ECMM1278318/html/onlinebk/protecting/task/t_oc_prot_sym-split-miror-aggr-or-trad-vol.html#t_oc_prot_sym-split-miror-aggr-or-trad-vol

If I understand correctly I would have to do:

 

aggr split aggr0/plex2 aggr1

 

This will split off the second plex and create a new aggregate called aggr1. I could then remove the aggregate aggr1 and add the disks to aggr0.

 

The other option is to remove the plex from the aggregate, as explained here: https://library.netapp.com/ecmdocs/ECMM1278318/html/onlinebk/protecting/task/t_oc_prot_sym-split-miror-aggr-or-trad-vol.html#t_oc_prot_sym-split-miror-aggr-or-trad-vol

That would require these commands:

aggr offline plex2

aggr destroy plex2

 

This will destroy the plex, and the disks will be turned into hot spares which can then  be added to aggr0.

 

So the second option would save the steps to remove the newly created aggregate.

 

Is any of these ideas wrong, am I missing something? Is there something else to consider? Both steps do not need any downtime as fas as I can see.

 

Any comments/ideas etc please let me know!

 

Kind regards

Sjoerd

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