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EVA4100 + data replication suspend/failsave

Thierry D
Valued Contributor

EVA4100 + data replication suspend/failsave

Hi all

 

Would need your input on data replication suspend/failsave process (from SSSU) .

What will happen is the FC link between both EVA will be cutoff for some time during a maintenance window.

 

My question is, is it necessary to suspend data replication on DR groups or can I let it as is ?

What problem may I see once the link is up again ?

 

Commands I would like to execute:

before maintenance --> set dr_group mygroup SUSPEND

after maintenance --> set dr_group mygroup NOSUSPEND

 

Or perhaps a more generic approach with the following:

before maintenance --> set dr_group mygroup FAILSAFE

after maintenance --> set dr_group mygroup NOFAILSAFE

 

Since I am new to this data replication on EVA I'd like to make sure I am doing it the right way.

Also during this maintenance the Arrays would remain UP but all servers accessing vdisks would be powered-off ..

 

Thanks

 

Thierry