Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
Dear David, you can build the primary node and then use drbdsetup /dev/drbdx primary -o that will force the node to come up and be primary. We do that on regular basis, e.g. when reinstalling redundant systems. Can you please tell me which error message you exactly get when trying to force it to be primary ? Soeren "David Hansel" <hanselzen at gmail.com> Sent by: drbd-user-bounces at lists.linbit.com 07.05.2008 12:22 To nico at vanderhorn.nl cc drbd-user at lists.linbit.com Subject Re: [DRBD-user] Single Primary with Missing Secondary Hi Niko, May i know your drbd version? I've tried this before on 8.2.5 and it can't be done. When i force drbd to be a primary, the error message appear said that at least need 2 node to make it done. On Tue, May 6, 2008 at 5:31 AM, N.J. van der Horn (Nico) <nico at vanderhorn.nl> wrote: > Hi Paul ! > > Yes, that is perfectly possible, i did that several times. > Just build the first node and use it as primary. > There is no obstacle to use it and work with it until the loving > brother/sister comes in sight. ;-) > When you later add the second one, you start the initial sync, then start > heartbeat also there. > Ok, this is a short answer.... > > Greets, Nico > > Paul McEnery schreef: > > > > > > > > > Hi All. > > > > Is it possible to initialise drbd on only one node, with a view to adding > a second node at a later date (once it has been purchased)? > > > > I have a single server which needs to be setup as a storage server > presenting iSCSI luns to a number of other systems. The idea is that if the > system works successfully, a second redundant storage server will be > purchased which will mirror the primary (drbd + heartbeat). I am trying to > set the primary up so that I can simply activate the secondary node once it > has been purchased, without the need to rebuild from scratch. The only > analogy I can think of is; this is similar to building a RAID 1 mirror on a > single disk, specifying the second disk as "missing", as mdadm allows you to > do. Once you purchase a second disk, you can simply copy the partition table > and use mdadm to bring the disk into the array. Essentially, I would like to > do the same with drbd, where the second node is not available from the > outset, and may not be available for a few months. > > > > Does anyone know if this is possible with drbd? If not, I am starting to > think along the lines of using a qemu secondary node during initial setup, > which is later discarded. Can anyone think of an easier way for me to get a > single node to become primary having never communicated with the secondary? > > > > TIA > > > > ------------------------------------------------------------------------ > > > > _______________________________________________ > > drbd-user mailing list > > drbd-user at lists.linbit.com > > http://lists.linbit.com/mailman/listinfo/drbd-user > > > > > > -- > Behandeld door / Handled by: N.J. van der Horn (Nico) > --- > ICT Support Vanderhorn IT-works, www.vanderhorn.nl, > Voorstraat 55, 3135 HW Vlaardingen, The Netherlands, > Tel +31 10 2486060, Fax +31 10 2486061 > > > _______________________________________________ > drbd-user mailing list > drbd-user at lists.linbit.com > http://lists.linbit.com/mailman/listinfo/drbd-user > -- Best Regards, David Hansel _______________________________________________ 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/20080507/7ef17d2f/attachment.htm>