* raid5 rebuild/resync speed.
@ 2009-06-01 21:52 Thomas Fjellstrom
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From: Thomas Fjellstrom @ 2009-06-01 21:52 UTC (permalink / raw)
To: linux raid
I recently read an article that claimed the default mode of --create (to start
with a spare and rebuild it into the array) was faster than doing a full
resync.
It turns out its not on my system. With the default --create the rebuild goes
at 60MB/s or so, while when passing -f it goes at around 80MB/s. using the -f
option to --create saves nearly 2 hours when building a fresh 4x2T raid array.
Is there a reason the default is still rebuilding a spare into the new array?
--
Thomas Fjellstrom
tfjellstrom@shaw.ca
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2009-06-01 21:52 raid5 rebuild/resync speed Thomas Fjellstrom
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