Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
Le mercredi 12 janvier 2005 à 19:33 +0100, Johan Karlsson a écrit : > Hello, > > On Tue, 11 Jan 2005 14:40:38 +0100, Laurent Simonneau <liste at alixen.fr> wrote: > > After a successfull drbd synchro, I try to run > > mke2fs -j /dev/drbd0 ... and drbd crash ! The connexion > > with secondary node is broken. > > This happened to me with drbd 0.7.7 and kernel 2.4.2. I use DRBD 0.7.7 on a 2.4.27 > > It seems to work with protocol A, but I don't really understand why ... > > Did not try that - but I dont want to run protocol A anyhow :-) > > > But is it really interesting to use DRBD over LVM ? I use LVM for > > snapshots to have more consistant backup. I saw on mailing list, > > FAQ, ... a lot of contradictory informations about DRBD and LVM > > snapshot. > > Does it works or not ? > > I have working drbd-over-lvm2 setups on a production servers, working perfectly > with protocol C. I'm running linux 2.6.9, drbd 0.7.7 and also > experimental vserver patches. > > The question of using LVM underneath is a bit philosophical - I like > the flexilibity it gives me, especially since the standby machine is > linked with four other machines. > To add another one machine, I'd just lvcreate a new logical volume, > and configure drbd on top of this. Hopefully not all primarys will > fail at the same time, or the standby will get a lot to do =). > > One server is scrapped? No problem, remove drbd and lvremove it - the > space can then efficiently be used for another server. > > Just the other day, I needed more space for one vserver. Stop the > drbd, lvresize the logical volume on both nodes, drbdadm resize, start > drbd, resize2fs /dev/drbd0, mount and start the vserver. It would be > _a lot_ more work if regular partitions had been used. > > But I guess it all depends on your needs and the setup. 0K thank you. Regards, -- Laurent Simonneau Alixen Tel : 01 69 85 24 13 Fax : 01 69 85 24 10