Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
Hi Peter, what Kernel are you running ? I run into the same (or similar ?) low-sync-problem with kernel 2.6.17 (as posted on 20 Sep 2006 on this list). When switching back to kernel 2.6.16 the sync rate is as expected. I don't think it has to do with the RAID performance because I don't run into problems with all my other applications that don't use drbd. Regards, Bernhard -------- Original-Nachricht -------- Datum: Wed, 4 Oct 2006 19:30:41 +0200 Von: Lars Ellenberg <Lars.Ellenberg at linbit.com> An: drbd-user at lists.linbit.com Betreff: Re: [DRBD-user] sync rate only 2,204 (1,220) K/sec? > / 2006-10-04 18:36:40 +0200 > \ Peter Sabaini: > > > > # hdparm -t /dev/cciss/c0d0 > > > > > > > > /dev/cciss/c0d0: > > > > Timing buffered disk reads: 208 MB in 3.03 seconds = 68.69 > MB/sec > > > > > > > > It could be better, but its reasonable I think? > > well, actually, write performance would be more interesting. > make sure that the raid is not rebuilding at the same time. > > also, the cciss controler likes high values for > max-buffers > max-epoch-size > unplug-watermark > > -- > : 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 -- GMX DSL-Flatrate 0,- Euro* - Überall, wo DSL verfügbar ist! NEU: Jetzt bis zu 16.000 kBit/s! http://www.gmx.net/de/go/dsl