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April 24th, 2012 21:00
DMX-4: When SRDF suspended, will it still occupy mirror position?
A RAID-5/RAID-10 production LUN configured to use SRDF will occupy 3 mirror positions, leaving 1 mirror position to be used.
Question here: When I suspended SRDF, will it release 1 mirror position so that I have 2 mirror positions to use?
Another question: If I have the scenario above, and I configured TF/Mirror, so I will use the 4th mirror position. When I split the mirror, will I get back 1 mirror position so I can create second BCV?
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sauravrohilla
859 Posts
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April 25th, 2012 00:00
HI,
Suspending the SRDF will not release the mirror position. Its only when you delete the SRDF pairing information (deletepair).
Since you have Raid 5 standard and assuming you have configured raid 5 bcv to take the TF mirror, it will use Clone emulation in the backend and will not consume the mirror position.
regards,
Saurabh
Rasmmacias
108 Posts
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April 30th, 2012 06:00
TF/Mirror -->Split: The 4 position is free, but you need full establish for the next establish with this pair. Is very easy to use the TF/Clone, and this pair will not consume position.
SRDF--> Suspend. The position is active, you need to split for free also this position, the next establish with this pair, is full also.
Rasmmacias
108 Posts
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April 30th, 2012 06:00
SRDF-->> Split an delete pair for delete this position.
dynamox
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20.4K Posts
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April 30th, 2012 20:00
since when SRDF split requires full establish ?
Rasmmacias
108 Posts
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May 1st, 2012 00:00
I send also, but ist' not refresh;
SRDF; for delete position, you need split the pair and delete pair, in this momment you have this position empty, and of course, you need to create this pair aggain, and to do full establishh.
Regards,