Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
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 > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.linbit.com/pipermail/drbd-user/attachments/20080928/69869783/attachment.htm>