Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
Alexander Lind wrote: > My portuguese is a little rusty (there does not seem to be an english > version), but I see that he uses drbd 0.8. That is the the caveat I > suppose, that it can be done with drbd 0.8.x, not 0.7.x, correct? That is correct, 0.7.x does *not* support active/active > > Do you have any idea of when a production-ready version of 0.8.x could > be expected? The answer you will get for this one is: When is ready! > As far as the apps go, I was going to use the shared partitions for > network shares (file storage and propagation etc), and also Courier > Imapd. I don't forsee any problems with the files, and as far I have > understood, Courier Imapd with its maildirs (instead of spools) should > not have any problems either. Please correct me if you think I'm wrong :) I think this should be ok, I do not use courier, but I assume that if you have postfix or sendmail as your MTA which runs independently on each machine and that delivers to courier on a separate socket file (or at least that is how cyrus imap works) on each machine then courier should be able to deliver mail to your shared active/active storage (maildir mailboxes). I currently run in production sedmail+mimedefang+clamav+spamassain+cyrus-imap using drbd-0.7.21 on RHEL4 and that has worked perfectly for over a year (off course drbd has been updated over time). My web server uses drbd-0.7.21 and has a horde/imp installation for web mail. I could share my install notes on request (e-mail me off-list), but I have to warn you that they are not totally complete. I plan to turn them into a good howto when I upgrade my servers to RHEL5. Diego > > Thanks > Alec > > Diego Julian Remolina wrote: > >> Yes that is possible, depending on the application you want to run. >> For example it may not be doable for e-mail unless the MTA you are >> using knows how to share a mail spool. As long as your application can >> work with two machines having access to the same files or folders then >> you should be ok. An alternative to GFS is ocfs2 which is also a >> clustered file system. A guy from brazil wrote a howto for drbd and >> ocfs2 (it may only be in portuguesse, I am not sure if he has an >> english version): >> >> http://guialivre.governoeletronico.gov.br/seminario/index.php/DocumentacaoTecnologiasDRBDOCFS2#DRBD >> >> >> IMPORTANT: At this point, drbd-0.8.X is not stable and should not be >> used in production environments. Some people may already use it in >> production, but it is not recommended. If you do it, you may be >> risking too much. >> >> Diego >> >> >> Alexander Lind wrote: >> >>> Hello All >>> >>> I have read that you can achieve a shared storage solution by >>> combining GFS and DRBD somehow. >>> The idea being making it so i can have a shared and mirrored >>> partition on two separate machines connected via tcp/ip, that gives >>> each machine full r/w access. >>> Is this possible? Is using GFS / DRBD the answer? Are there better >>> solutions? >>> Unfortunately I can't seem to find much info about this on the net, >>> so I'm hoping someone here can help me out! :) >>> >>> Thanks >>> Alec >>> >>> _______________________________________________ >>> 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 >>