> (High end i2o controllers can take 4000 commands at a time from the OS, sort
> them, merge them do read/write ordering, disk scheduling and cache optimisation
> they do not need the OS doing elevator, merging and other stuff.)
Nice. But I may have a disk with some journalled and some
none-journalled
filesystems on it. Will these controllers reorder non-journalled data
in the optimal order while not messing up the order for journal
operations?
Or is the os still needed for that?
Helge Hafting
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