Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
On Fri, Mar 14, 2008 at 10:31:11AM +0100, Ralph.Grothe at itdz-berlin.de wrote: > Hi Lars, > > thanks for the reply. > > Btw, I remember to have met you once at the LinuxConf EU 2007 > where we shared a taxi from > Cambridge railway station. right. has been a nice conference there. > May I ask you somewhat astray, > although I'm sure that this is probably in great depth pointed > out somewhere in the docs, > if with my brand new DRBD 8.2.5 installation I could activate the > DRBD primary on both nodes simultaneously > and have the concurrent write accesses from both nodes be warded > by some sophisticated locking mechanism, > as is presumably provided by e.g. GFS or OCFS2 etc.? > > Currently this cluster is HB1, active/standby. > > Inspite of shifting to HB2, which I fear would have to be paid > with the loss of ease of administration, > I rather fancy to instead have HB1 manage shared storage in guise > of a DRBD+GFS combo > along with an LVS load balancer. > This shared storage should then be used by a varying number of > web services/apps > which I would like to provide in OpenVZ VEs running on the same > cluster nodes, > but which wouldn't have to be HA (i.e. not HB managed). > This may sound pretty awkward because one usually separates the > LVS cluster from the services behind it > which are forwarded to. > And I know that trying to escape HW costs this way while trying > to maintain HA at the same > must be like a contradiction in itself. > > But anyway, do you think this could work at all, > and would make any sense? speaking of "ease of administration", you will lose a lot of that with a two-primary drbd setup. anyways, see if the http://www.drbd.org/users-guide/ helps, feedback wellcome. -- : Lars Ellenberg http://www.linbit.com : : DRBD/HA support and consulting sales at linbit.com : : LINBIT Information Technologies GmbH Tel +43-1-8178292-0 : : Vivenotgasse 48, A-1120 Vienna/Europe Fax +43-1-8178292-82 : __ please use the "List-Reply" function of your email client.