JPS2018
1 Copper

Unity 4.2.3 and DR Testing without production outage

Hi,

We are looking to perform a DR test but we can not affect production workload. Our Unity is using asynchronous replication.

From you I've read on the Unity Configuring Replication (H14974) and UNITY: REPLICATION TECHNOLOGIES  documents they only cover the failover and failback (planned or not planned) but in both cases causing a production outage since the VMWare datastores and NAS file System go to Read Only Mode

I know Unity OE 4.3 include a New Proxy NAS but this is Read Only so not possible to write any data on the DR side.

Any found any workaround to do a DR isolated test ? 

Thanks

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3 Replies

Re: Unity 4.2.3 and DR Testing without production outage

Have you tried the procedure in this KB (assuming you're using NFS since you're talking about VMware datastores)?

482672 : Dell EMC Unity: How To How to perform Target Replication Data Content Check (User Correctable)

https://support.emc.com/kb/482672

There's also more detail in https://support.emc.com/docu88679_Dell_EMC_Unity:_DR_Access_and_Testing_-_Dell_EMC_Unity_OE_4.3.pdf?...

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JPS2018
1 Copper

Re: Unity 4.2.3 and DR Testing without production outage

Thanks Chris,

We are using VMWare (block) LUN/VMFS datastore (no NFS). I learned, we can

take a snapshot of the destination volume or clone it. Then mounted on the

ESX and that worked ok for me.

The issue remains with SMB/CIFS file systems since there is not option to

clone or take snapshots on the replicated file system.

Re NAS proxy on 4.3 allows read only access so not sure if you can read and

clone it. We have wait till we can upgrade to test.

Do you know if Recovery Point (for Unity) allows to test DR without

production outage ?

Thanks

On Fri, May 11, 2018 at 4:18 AM, chrisholloway <

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Rainer_EMC
5 Osmium

Re: Unity 4.2.3 and DR Testing without production outage

RecoverPoint wont work for Unity NAS file systems

what you currently do for writeable NAS DR testing is using NFS

a writeable DR test for CIFS is planned for a future version - ask your local contact about roadmap info