/ 2006-05-08 15:01:08 +
\ Torsten Neumann:
> Lars Ellenberg writes:
>
> > > So how can I check why drbd slows things so terrible down? Yes there is a
> > > bottleneck. But without drbd all seems fine, with drbd not.
> >
> > see what io scheduler is in use
> > (/sys/block/lower-level-device/q
/ 2006-05-08 08:27:56 +
\ Torsten Neumann:
> Francis I. Malolot writes:
>
> >
> > >>>When putting linux software raid5 on top it goes unusable slow
> >
> > Raid 5 slow performance is normal especially write because
> > it must read overhead blocks in the stripe to recreate the parity block.
please increase your MTU and feel the power of DRBD.
here we can pump at 125MB
thanks,
francism
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- Original Message -
From: "Torsten Neumann"
To:
Sent: Monday, May 08, 2006 2:43 PM
Subject: [DRBD-user] strange p
>the cisco switches between the two hosts don't allow that. Is it worth the
>trouble with the network admins or does it explain the very slow drbd
>performance with recent kernel versions?
Try to crossover the link between the two host and do
$ ifconfig eth0 MTU 6000
>The trouble is that I don
>>>When putting linux software raid5 on top it goes unusable slow
Raid 5 slow performance is normal especially write because
it must read overhead blocks in the stripe to recreate the parity block.
Please look where is the bottleneck.
thanks,
francism
FingerPrint:3082 0CB4 0609 2A86 4886 F70
