Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
Thnx for you help, but eventually the problem wasn't in the systems but in a crapy switch which resulted in a huge amount of packetloss. Directly connecting the systems with a crosslink utp cable did the trick. On 7/25/05, Lars Ellenberg <Lars.Ellenberg at linbit.com> wrote: > / 2005-07-25 11:24:50 +0200 > \ Wienke Giezeman: > > I have set up a Linux-HA configuration on two systems. DRBD is working, but > > the speed is very low. It never exceeds 500 Kb. Although I've set rate in > > drbd.conf to 700000 > > try to set the sync rate more into the range you actually > expect from your hardware, maybe that helps. > > and just check the obvious: > > what does hdparm say about your disks? > dma enabled? > hdparm -t -T /dev/whatever ? > > hackish benchmark for poor people: > right# netcat -l -p 7777 | time dd of=/dev/somewhere bs=4k count=1234567 ; time sync > left# dd if=/dev/whatever bs=4k count=1234567 | netcat right 7777 > > is anything else accessing (seeking on) the physical disk? > > etc. > > cheers, > > -- > : Lars Ellenberg Tel +43-1-8178292-0 : > : LINBIT Information Technologies GmbH Fax +43-1-8178292-82 : > : Schoenbrunner Str. 244, A-1120 Vienna/Europe http://www.linbit.com : > __ > please use the "List-Reply" function of your email client. > _______________________________________________ > drbd-user mailing list > drbd-user at lists.linbit.com > http://lists.linbit.com/mailman/listinfo/drbd-user >