> The more money you pay for your storage, the less likely this is to be an > issue (high end SSD's, enterprise class arrays, etc don't have volatile write > caches and most SAS drives perform reasonably well with the write cache > disabled).
"Performance" without a write cache is a physical property. It varies according to very simple principles related to arial density, rotational speed, actuator speed (stepping -- momentum, acceleration and deceleration and settling of the read/write heads). "Performance", without a write cache, has absolutely nothing whatsoever to do with the external data transfer method or whether the bus is parallel, serial, or via hyperspace, just as it has nothing to do with whether the moon is made of green of purple cheese. Statements such as "most SAS drives perform reasonably well with the write cache disabled" demonstrate a very deep seated ignorance of "the way things work" that ought to indicate that anything said should be taken as highly likely to be incorrect. --- () ascii ribbon campaign against html e-mail /\ www.asciiribbon.org _______________________________________________ sqlite-users mailing list sqlite-users@sqlite.org http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users
