Roman Mamedov wrote:
On Thu, 10 Jun 2010 18:40:11 -0400
Miles Fidelman<mfidelman@xxxxxxxxxxxxxxxx> wrote:
Yes... went with internal.
I'll keep an eye on write performance. Do you happen to know, off hand,
a magic incantation to change the bitmap-chunk size? (Do I need to
remove the bitmap I just set up and reinstall one with the larger chunk
size?)
Remove (--bitmap=none) then add again with new --bitmap-chunk.
Looks like my original --bitmap internal creation set a very large chunk
size initially
md3 : active raid6 sda4[0] sdd4[3] sdc4[2] sdb4[1]
947417088 blocks level 6, 64k chunk, algorithm 2 [4/4] [UUUU]
bitmap: 6/226 pages [24KB], 1024KB chunk
unless that --bitmap-chunk=131072 recommendation is translates to
131072KB (if so, are you really running 131MB chunks?)
Miles
--
In theory, there is no difference between theory and practice.
In<fnord> practice, there is. .... Yogi Berra
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