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Arkhana

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16 years ago

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Arkhana

44 Posts

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December 1st, 2010 21:00

Celerra NFS - differential replication

Hi (i'm french, sorry if I make mistakes !)

I've got 2 Celerra NS-120 X and Y. I've got 3 sites, A, B and C.

I need to move my production site from A to (B and C), it's complicate, you will anderstand :)

At the beginning CelerraX and CelerraY are on the site A.

I am in a vmware envirronement, with SRM (Site Recovery Manager)

The link between site A and (B and C) is a "radio link" 100 MB/s.

Finaly i must have my production on site B and C.

The CelerraX must be on the site B and the CelerraY must be on the site C

So I do a replication asynchronous between my two storage arrays on a NFS file system.

I do a replication from FileSystemX to FileSystemY.

I've got a lot of data to replicate, so i want to do a local replication on a 10 GB/S iSCSI link and after do a differential replication on the radio link

The first time my production turn on the FileSystemX, when the replication (through the local link) is finish i do an SRM failover to move my production on the FilesystemY.

I move the CelerraX on the site B, and want to do a replication from FileSystemY to FileSystemX.

Now I want to know if the Celerra will do a differential replication or a full copy ?

Thanks for your help.

  • sebbyr

    99 Posts

    533

    1

    Posted December 2nd, 2010 09:00

    Part of replication is to do an initial full copy, and then incremental copies/changes.  I'm attaching the documentation on V2 replication that should help answer your questions more clearly.

    Thanks.

    Sebby Robles

    eServices Support

    EMC Celerra Support

    1 Attachment

  • Arkhana

    44 Posts

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    0

    Posted January 7th, 2011 01:00

    Hi,

    i was on holyday. Thank you for your answer. I will read this doc.

    bye