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SingleWrite or TripleWrite
Hi,
MQ application currently uses Triplewrite. They want to go Singlewrite to increase performance.
Question is:
Does the DMX hardware guarantee:
SingleWrite
Some hardware guarantees that, if a write operation writes a page and fails for any reason, a subsequent read of the same page into a buffer results in each byte in the buffer being either:
The same as before the write, or
The byte that should have been written in the write operation
On this type of hardware (for example, ssa write cache enabled), it is safe for the logger to write log records in a single write as the hardware assures full write integrity. This method provides the highest level of performance.
TripleWrite
This is the default method. Where hardware that assures write integrity is not available, write log records using the TripleWrite method because it provides full write integrity.
Thanks for any help on this
sfuhrman
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January 25th, 2010 14:00