[DRBD-user] slow sync speed of 12TB over 10GE
taeuber at bbaw.de
Mon Jan 19 11:31:04 CET 2009
Tomasz Chmielewski <mangoo at wpkg.org> schrieb:
> Technically speaking, such writes:
> [==============>.....] sync'ed: 76.4% (242356/1023804)K
> finish: 0:00:01 speed: 130,240 (130,240) K/sec
> can be also fragmented as well - some area can be out of sync here, some
> area there - the head will jump.
Yes I'm aware of this, but my sync is the initial one. This should be somewhat linear, shouldn't it?
> It's hard to tell if such difference (258 MB/s dd write speed versus 130
> MB/s DRBD sync) can be explained by only those items I mentioned.
I'll do some tests on a completed configuration. But this will be not before next week I'm afraid.
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