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Moving primary volume while DR/Secondary stayed on same array
2020-10-20
10:46 AM
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we are moving our primary volume from one site to another site but our secondary/DR site is staying same and DR volumes will be stayed same as well.
when we move to our newer site can we setup snapmirror from our new site so same DR site and to same volumes? will that be a full sync/new sync or it will be just delta copies?
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CAPATEL_NET1984 has accepted the solution
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Hello
Thanks for the clarification. With snapmirror you should be able to perform a snapmirror resync to be able to resync from B to a common snapshot on A1. This should be your steps:
Update A -> B relationship (from B)
Break A -> B relationship (from B)
Release with relationship info only true on A so the snapshots stay for the resync later.
Create new snapmirror A -> A1 and initialize.
After transfer is done and it is idle you can break it and release with only relationship info again.
At this point you should have a matching snapshot you can use on A1 to do a resync from B.
Break A -> B relationship (from B)
Release with relationship info only true on A so the snapshots stay for the resync later.
Create new snapmirror A -> A1 and initialize.
After transfer is done and it is idle you can break it and release with only relationship info again.
At this point you should have a matching snapshot you can use on A1 to do a resync from B.
Below is some documentation about snapmirror resync:
Thanks
4 REPLIES 4
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Hello,
Are you moving the source volume within the same cluster or to a different cluster?
How are you planning to move the volume?
Here is a documentation about moving a source snapmirror volume:
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Hi, we are not using "Volume move" technology
current setup site A--> site B via snapmirror
new setup is site A is going away
site A--> site A1 we will do snapmirror
final setup will be site A1--> site B
in this case , can we use the same DR target volumes at site B?
if we use same volumes, will it be incremental or a full copy?
CAPATEL_NET1984 has accepted the solution
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Hello
Thanks for the clarification. With snapmirror you should be able to perform a snapmirror resync to be able to resync from B to a common snapshot on A1. This should be your steps:
Update A -> B relationship (from B)
Break A -> B relationship (from B)
Release with relationship info only true on A so the snapshots stay for the resync later.
Create new snapmirror A -> A1 and initialize.
After transfer is done and it is idle you can break it and release with only relationship info again.
At this point you should have a matching snapshot you can use on A1 to do a resync from B.
Break A -> B relationship (from B)
Release with relationship info only true on A so the snapshots stay for the resync later.
Create new snapmirror A -> A1 and initialize.
After transfer is done and it is idle you can break it and release with only relationship info again.
At this point you should have a matching snapshot you can use on A1 to do a resync from B.
Below is some documentation about snapmirror resync:
Thanks
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I have the same question but in our case we also trying to move the DR (site B) volumes into a new cluster too so :
Site A (Primary) should move to new cluster
Site B (DR) should also move to new cluster
What's the best way to resync the volumes after the move so we can just update the Delta instead of new snapmirror relationship since we talk about a lot of data , and off course with min downtime.
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