Am Dienstag, 8. September 2009 20:15:31 schrieb Christoph Lechner: (...) > For the production setup I planned the Ethernet replication link and a > serial null modem cable. I know the serial cable can really slow down a > CRM based setup. But I'm going to pay the price because if I mess the > firewall two independent Ethernet links still don't prevent a split-brain.
Do NOT use serail interconnects any more. No possiblilty for serial lines in openais any more. And they are definitely too slow for recent cluster managers. > The filesystem that is mirrored via DRBD is still formatted with an > OCFS2 fs. That's some legacy of a former setup. Now we have a working > Heartbeat setup and only on one of the two machines DRBD is primary, the > other one is secondary. So only one host has the file system mounted. > > The question was if you would recommend a change to ext3. Just use one master and format the filesystem with ext3. In case of failover the DRBD of the other node becomes master and can mount the filesystem. All applications on the node can use this share. -- Dr. Michael Schwartzkopff MultiNET Services GmbH Addresse: Bretonischer Ring 7; 85630 Grasbrunn; Germany Tel: +49 - 89 - 45 69 11 0 Fax: +49 - 89 - 45 69 11 21 mob: +49 - 174 - 343 28 75 mail: [email protected] web: www.multinet.de Sitz der Gesellschaft: 85630 Grasbrunn Registergericht: Amtsgericht München HRB 114375 Geschäftsführer: Günter Jurgeneit, Hubert Martens --- PGP Fingerprint: F919 3919 FF12 ED5A 2801 DEA6 AA77 57A4 EDD8 979B Skype: misch42 _______________________________________________ Linux-HA mailing list [email protected] http://lists.linux-ha.org/mailman/listinfo/linux-ha See also: http://linux-ha.org/ReportingProblems
