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November 15th, 2010 12:00
SATA drives for SRDF
I have some application and it's database.Looking at the requirements this application can sustain SATA drive(v-max) as it is one time write and mostly read from that point on.It would have worked great except SRDF/A.
Did anyone using SATA drives with SRDF/A?My feeling is SATA may hit the WP and end up using more cache..Any thoughts on that front?
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Quincy561
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November 15th, 2010 13:00
Generally if the R1 is the same or slower than the R2, you should be OK. So make sure you have SATA drives in the R1 as well.
RRR
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November 16th, 2010 06:00
What Quicy56 says goes for SRDF/S, for /A I don't know. That you'll need more cache is obvious and when the R2's are slower, the R2 side probably needs even more.
RobertDudley
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November 16th, 2010 09:00
What Quincy posted applies very much to SRDF-A. The target array in an SRDF/A environment has to be able to de-stage the data transmitted in a cycle to disk to be ready to accept the next cycle; the standard is the R2 should be as fast or faster than the source to ensure this happens.