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тАО01-09-2021 10:08 AM - edited тАО01-09-2021 11:18 AM
тАО01-09-2021 10:08 AM - edited тАО01-09-2021 11:18 AM
[MSA 2040] How to disable one of the pools in MSA 2040? (Not delete)
Hi all,
I would like to see if after unmounting/disabling one of the pools (A/B) our services will still work. Is there a way to disable one of the pools or disabling some volume so that data is not lost but not in use?
Is there any command in CLI that would make this happen?
Any help is very much appreciated.
Thanks in advance,
Norbert
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тАО01-11-2021 02:45 AM
тАО01-11-2021 02:45 AM
Re: [MSA 2040] How to disable one of the pools in MSA 2040? (Not delete)
Hi Norbert,
you can use "unmap volume" and "map volume" command.
In this case, the Hosts no longer see the Volumes, but Data is untouched.
You can map the Volumes any Time again and the Data is back.
Examples
Delete explicit mappings for Host1 to volumes V1 and V3 (leaving the default mappings, if any, unchanged).
# unmap volume initiator Host1.* V1,V3
Try it with a Test Volume.
Cali
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тАО01-11-2021 08:22 AM
тАО01-11-2021 08:22 AM
Re: [MSA 2040] How to disable one of the pools in MSA 2040? (Not delete)
There is no way to disable Pool but you can shutdown one of the Controller A or B and then all resources should failover to another surviving controller. This would be one test when one Pool not available but still your volumes part of it accessible or not through other controller. (Note: you need to make sure all your volumes presented through both Controller host ports)
Another testing which you want to achive is volume temporary disable. In order to achive this better you unmap those volumes from respective hosts and again present them when you require to access them again. You data will be intact at the block level. During unmap time you can't access those volume data from host operating system file system level.
Hope this helps!
Regards
Subhajit
I am an HPE employee
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