Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
Oops, replied to previous without adjusting the subject line... ----- "Wendell Dingus" <wendell at bisonline.com> wrote: > > Xen + DRBD problem... CentOS 5.2 32-bit with working 20GB shared DRBD partition. > > # rpm -qf /etc/xen/scripts/block-drbd > drbd82-8.2.6-1.el5.centos > # drbdadm state r0 > Primary/Primary > > Works fine referencing it as a phy: device... > # grep disk domutest > disk = [ "phy:/dev/drbd0,xvda,w" ] > > # xm create domutest > Using config file "./domutest". > Started domain domutest > > Not so much using the DRBD supplied Xen block handler... > # grep disk domutest > disk = [ "drbd:r0,xvda,w" ] > > # xm create domutest > Using config file "./domutest". > No handlers could be found for logger "xend" > Error: Disk isn't accessible > > Any suggestions? > Thanks... > > > ----- "Oliver Welter" <mail at oliwel.de> wrote: > > -----BEGIN PGP SIGNED MESSAGE----- > > Hash: SHA1 > > > > Hi All, > > > > I used drbd 0.7 a while with protocol B which did fine. > > > > I migrated the servers and due to the comment in the sample config, that > > currently C is considered faster than B, I switched to C but now get > > extreme iowaits even in really low load situations. > > The system is a dual CPU AMD Quad Opteron and system load raises to >15 > > and I get 80% waits. DRBD runs over a low latency (~0.1ms) Gigabit Link. > > > > I now wanted to switch the system to protocol B or even A, is there a > > way to do so without shutting down the disks? I have a total of 8 drbd > > devices on the box. > > > > TIA > > > > Oliver > > - -- > > Protect your environment - close windows and adopt a penguin! > > PGP-Key: 3B2C 8095 A7DF 8BB5 2CFF 8168 CAB7 B0DD 3985 1721 > > -----BEGIN PGP SIGNATURE----- > > Version: GnuPG v2.0.7 (GNU/Linux) > > Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org > > > > iD8DBQFI30r/yrew3TmFFyERAsGLAJ94qlMXjHtmkv+YvxgoNSuYvMg1aQCePOtz > > T1zX86tChP+6Kucqfr7QS5k= > > =zjKL > > -----END PGP SIGNATURE----- > > _______________________________________________ > > drbd-user mailing list > > drbd-user at lists.linbit.com > > http://lists.linbit.com/mailman/listinfo/drbd-user > > > _______________________________________________ drbd-user mailing list drbd-user at lists.linbit.com http://lists.linbit.com/mailman/listinfo/drbd-user -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.linbit.com/pipermail/drbd-user/attachments/20080928/f5a69100/attachment.htm>