Originally posted by phoronix
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The old trick of selection of "which mirrored disk" by "modulo PID" completely ignored the loading on whichever disk...
That old selection by PID may well be fine for a blizzard of small reads for Twits... Too often it was hopeless for media work where one single disk in a cluster would too often suffer a pile-up...
So, this new scheme should undo the need for raid10...
Meanwhile, whatever happened to the patches that were submitted that actually did try to do load balancing?...
Be excellent to one another!
Martin
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