Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
Thanks your comment Zev, We are about to elaborate an latency-intensive measurement scenario with both default SLES configurations (SLES10 and SLES11SP2) and we plan to share the result with this list. Akos p.s. As I reckon 8.2.6 drbd can not be compiled with the 3.0.x kernel, and I guess that 8.3.12 won't be compiled with 2.16.x kernel too I hope we can find some kernel (or NFS or drbd) configuration option that help a bit. On 05/11/12 20:21, Zev Weiss wrote: > On May 10, 2012, at 11:00 AM, Csurai Akos wrote: > >> Hello, >> >> I have a backup time degradation problem. >> In a nutshell (it looks a write latency performance): >> > Hi, > > I've also had problems with DRBD incurring (unreasonable, I would say) additional write latency on my systems. I've been watching this list since last July, and have seen a number of people report similar-sounding problems, but have yet to see any real explanation of why this happens or any solution to the problem. > > The earliest version I've used was 8.3.7, so I can't really speak to whether or not 8.2.6 was any better in this regard. (I did try updating to 8.4.0, but that didn't seem to help and introduced other problems, so I returned to 8.3.x.) > > For what it's worth, when I updated my servers from RHEL5 to RHEL6 (so a 2.6.18-based kernel to a 2.6.32-based one), it "felt" like things may have improved slightly, but not a whole lot (I say "felt" because I don't have any hard before/after numbers on it). > > > Zev Weiss > > _______________________________________________ > drbd-user mailing list > drbd-user at lists.linbit.com > http://lists.linbit.com/mailman/listinfo/drbd-user > -- This communication is confidential and intended solely for the addressee(s). Any unauthorized review, use, disclosure or distribution is prohibited. If you believe this message has been sent to you in error, please notify the sender by replying to this transmission and delete the message without disclosing it. Thank you. E-mail including attachments is susceptible to data corruption, interception, unauthorized amendment, tampering and viruses, and we only send and receive emails on the basis that we are not liable for any such corruption, interception, amendment, tampering or viruses or any consequences thereof. Ericsson Magyarország Kft., Székhely: 1097 Budapest, Könyves Kálmán krt. 11. B. épület. Nyilvántartó cégbíróság: Fõvárosi Bíróság. Cégjegyzékszám: 01-09-070937