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тАО09-01-2010 01:11 AM
тАО09-01-2010 01:11 AM
BC Copy
Regards,
Prashant
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тАО09-01-2010 10:16 PM
тАО09-01-2010 10:16 PM
Re: BC Copy
BC
BC requires equivalent space for a secondary copy. For example if you are protecting a 20 TB database, you will need 20 TB of additional storage. There is no performance impact on the production volumes during or after copy/split.
There will be however a short span when you put the DB in backup mode for split operations.
COW - copy on write technology (snapshot)
This scores over BC in only one area, requires less space, typically admins allocate 20% of the production space as additional storage for protection.
But if the IO exceeds this threshold during the time the snapshot is active, the copy is rendered useless.
For
>>highly critical
>>IO intensive
workloads, I recommend BC
For
>>non-critical
>>low IO
workloads I recommend COW
Please assign points if you are satisfied else feel free to ask more questions.
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тАО09-01-2010 11:22 PM
тАО09-01-2010 11:22 PM
Re: BC Copy
Thanks for your reply. We are planning to use the IBM storage and BC copy but I think that we cant use the BC copy with IBM storage. Only XP storage are supporting for BC copy. As per my knowledge cloning ,replication technologies like Business copy , CA replication is depends on hardware array we are going to use (means server model).
Regards,
Prashant
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тАО09-02-2010 12:49 AM
тАО09-02-2010 12:49 AM
Re: BC Copy
IBM has equivalent technologies.
On the DS4XXX series you have
Volume Copy = BC
Flashsnap = Snapshot
Regards,
Biju Krishnan
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тАО09-02-2010 12:54 AM
тАО09-02-2010 12:54 AM
Re: BC Copy
I am agree with you. But I am trying to clear my conpcept like any replication or bc or volume copy selcetion depends upon which array (storage) we are selecting right. I cant use BC with IBM storage.
Regards,
Prashant
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тАО09-02-2010 01:00 AM
тАО09-02-2010 01:00 AM
Re: BC Copy
Apart from this scenario, BC is exclusively available only for to HP XP and HP EVA
There are other technologies that allow you to perform replication between different arrays.
Example - EMC Recovepoint
Then there are host based replication software from Softek, Symantec, Inmage which allow you to perform cross platform replication.