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April 20th, 2011 06:00
what is special about Open Replicator
Hi All , I know to migrate from Thik to Thin i need to use Open Replicator.
But i guess its block level copy. So what's special about Open Replicator which is missing in SRDF (because SRDF also block level data copy) . EMC engineer should think of including that extra into SRDF so that life will be more easy ..
Is there any doc which tell how OR actually works and how it figures out the blocks which does not hold any data ..
Regards
Sandeep..
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tonydcdi-ymiT1
70 Posts
0
April 23rd, 2011 05:00
Hello
see the following document: TechBook: Data Migration—EMC Open Replicator for Symmetrix, PowerPath Migration Enabler, and Federated Live Migration as it has all the information you want including thin space recovery after an OR migration
sauravrohilla
859 Posts
1
April 23rd, 2011 22:00
Hi Sandeep,
Migrating from Thick to thin using SRDF has just been allowed recently. Both SRDF and OR have their pros and cons and customer should use the technology that fits in their environment.
When you migrate from thick to thin using OR, your thin device would be fully allocated and then you will need to run the reclaim to free up the space..refer to the OR document for complete details...
regards,
Saurabh
AranH1
2.2K Posts
1
April 26th, 2011 08:00
Open Replicator can detect blocks that are all zeros if the Control device is a thin device use the following option in your OR sessions.
Look up the "set frontend_zero" option in the OR guide.