Helmut Wollmersdorfer wrote: > Am 01.04.2011 um 09:44 schrieb Andrew Beekhof: > > >> On Mon, Mar 28, 2011 at 9:08 PM, Miles Fidelman >> <[email protected]> wrote: >> >>> Hi Folks, >>> >>> I'm getting ready to upgrade a 2-node HA cluster from Debian Etch to >>> Squeeze. I'd very much appreciate any suggestions regarding >>> "gotchas" to avoid, and so forth. >>> > Etch -> Lenny -> Squeeze > > The Lenny -> Squeeze upgrade works fine, if you have a clean Lenny- > installation. I.e. you first must upgrade to Lenny. >
Ooops, my mistake here. I'm already running Lenny (old stable). Not enough coffee when I wrote this, I guess - got the names confused. >>> Basic current configuration: >>> - 2 vanilla Intel-based servers, 4 SATA drives each >>> > If you have Intel e100 NICs, then you will experience problems with > the non-free firmware drivers. The e1000 works fine. > Actually seems to be one of these: NetXtreme BCM5721 Gigabit Ethernet PCI Express > >>> - each machine: disks set up as 4-drive md10, LVM >>> - xen 3.2 hypervisor, Debian Etch Dom0 >>> - DRBD 8.2, Pacemaker linking the two nodes >>> - several Debian Etch DomUs >>> > Same problem here (many Dom0 and DomU with different Debian/Ubuntu > versions - Etch, Lenny, Hardy). > I do not want to risk the problems Etch ----> Squeeze, even not on the > development (used for programming and test) machines. > > Lenny to Squeeze was nearly without problems (Dom0 and DomU). > Again, my mistake. I'll be going directly from Lenny to Squeeze. > DRBD 8.2 (since 8.3.2 api:88/proto:86-88) should work with the other > node having DRBD 8.3.7 (api:88/proto:86-91) -- theoretically. > This is the one I'm most concerned with. There's going to be a point at which I'm running production VMs on the older code-base, and have to sync and migrate with the upgraded node - so I can migrate the VMs and then upgrade the 2nd node. That's the point at which I'm going to have to have to sync volumes between DRBD 8.2 and 8.3, and then migrate the volumes between Xen 3.2 and 4.1. <cringe> > BTW: If your hardware is as old as the software, then think about new > hardware. > > Helmut Wollmersdorfer > > _______________________________________________ > Linux-HA mailing list > [email protected] > http://lists.linux-ha.org/mailman/listinfo/linux-ha > See also: http://linux-ha.org/ReportingProblems > -- In theory, there is no difference between theory and practice. In<fnord> practice, there is. .... Yogi Berra _______________________________________________ Linux-HA mailing list [email protected] http://lists.linux-ha.org/mailman/listinfo/linux-ha See also: http://linux-ha.org/ReportingProblems
