September 4, 201114 yr I found this posted in the bata12 thread: You can experiment with the tunables on "Settings/Disk settings" page, in particular md_sync_window, which in essence, says how many 4K i/o's to queue down into the disk drivers when doing parity sync/check. If you have alot of memory (say more than 1G), then you can also increase md_num_stripes (maybe double it) - this defines how many total active i/o's can exist, more-or-less (and directly affects how much memory is allocated to the unRaid driver). I've tried searching to see if there's anything in the FAQ/Wiki which explains all the tunable parameters, available in the Disk Settings, but wasn't able to find anything. I there anything, other than Tom's comment above, that explains these, and the effects of changing them. Cheers.
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