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80000bit
2010 Oct 17
10
RaidzN blocksize ... or blocksize in general ... and resilver
The default blocksize is 128K. If you are using mirrors, then each block on
disk will be 128K whenever possible. But if you''re using raidzN with a
capacity of M disks (M disks useful capacity + N disks redundancy) then the
block size on each individual disk will be 128K / M. Right? This is one of
the reasons the raidzN resilver code is inefficient. Since you end up
waiting for the