On Wed, Dec 8, 2010 at 10:36 PM, James Smith <[email protected]> wrote: > I've spent the last several months learning drbd, pacemaker etc ... drbd > itself is surprisingly simple to get up running. Im yet to experience > significant problems with it. > > Pacemaker has documentation, but I've certainly found it a tad difficult to > locate, in the initial days at least of starting with pacemaker. There is > rarely enough documentation for anything, specifically Linux related, but > improvements are always made (and welcome) in documentation as awareness > increases.
That surprises me. Did you not end up at http://www.clusterlabs.org or http://www.clusterlabs.org/doc at any point? > > Anyway, good luck with finding any alternatives. You'll probably end up > blowing a wad of cash before finding something with a mere tenth of > pacemakers abilities. > > James. > > Sent from my iPhone > > On 8 Dec 2010, at 20:12, "Igor Chudov" <[email protected]> wrote: > >> Florian, it is very possible that I overlooked some valuable >> documentation. It is also possible that things have improved since I >> tried it last summer. >> >> However, at present, my question was to locate and consider >> alternatives to drbd and heartbeat. >> >> I will peruse the links that you provided, as, probably, we will end >> up using the Heartbeat setup that I created as a replacement. >> >> Functionality of Heartbeat 1.0 was fully sufficient for our needs. >> >> Igor >> >> On Wed, Dec 8, 2010 at 1:53 PM, Florian Haas <[email protected]> wrote: >>> On 12/08/2010 08:39 PM, Igor Chudov wrote: >>>> On Wed, Dec 8, 2010 at 1:32 PM, Serge Dubrouski <[email protected]> wrote: >>>>> Taking into account "simple" the answer is no. You can try RedHat >>>>> Cluster Suite on CentOS, but that's not simple. >>>>> >>>>> What's wrong with DRBD/Pacemaker/Corosync ? >>>> >>>> DRBD/Pacemaker was complicated, documentation did not exist or did not >>>> match the behavior, >>> >>> http://www.drbd.org/users-guide/ch-pacemaker.html >>> >>>> the GUI was broken and never really worked. >>> >>> http://www.drbd.org/mc/management-console/ >>> >>>> Config >>>> files were completely opaque. >>> >>> http://linux-ha.org/doc/re-hacf.html >>> http://linux-ha.org/doc/re-authkeys.html >>> http://www.drbd.org/users-guide/re-drbdconf.html >>> >>>> I spent weeks on this without having >>>> something that could work and was documentable. >>> >>> http://www.linbit.com/en/products-services/linbit-cluster-stack-support/ >>> http://www.linbit.com/en/education/training-schedule/ >>> http://www.linbit.com/en/education/tech-guides/ >>> >>>> Then I got the DRBD/heartbeat to work without Pacemaker, however, its >>>> reliability leaves much to be desired. >>> >>> http://theclusterguy.clusterlabs.org/post/178680309/configuring-heartbeat-v1-was-so-simple >>> >>>> For example, if both systems >>>> come up at the same time, they cannot decide who gets the resource. I >>>> did a hack to fix that (restarting heartbeat after boot of one of the >>>> systems) but that did not leave me with a warm and comfortable >>>> feeling. >>>> >>>> Then once in a while DRBD would stop syncing. >>>> >>>> I need to replace our old, aging corporate DRBD/Heartbeat network >>>> storage implementation, which always worked, but the servers are now >>>> getting old. I am feeling very uncomfortable about using what I have >>>> for replacement. >>> >>> http://www.linbit.com/en/education/tech-guides/highly-available-iscsi-with-drbd-and-pacemaker/ >>> http://www.linbit.com/en/education/tech-guides/highly-available-nfs-with-drbd-and-pacemaker/ >>> >>> Sure, we have zero documentation. >>> >>> Cheers, >>> Florian >>> >>> >>> _______________________________________________ >>> Linux-HA mailing list >>> [email protected] >>> http://lists.linux-ha.org/mailman/listinfo/linux-ha >>> See also: http://linux-ha.org/ReportingProblems >>> >> _______________________________________________ >> Linux-HA mailing list >> [email protected] >> http://lists.linux-ha.org/mailman/listinfo/linux-ha >> See also: http://linux-ha.org/ReportingProblems > _______________________________________________ > Linux-HA mailing list > [email protected] > http://lists.linux-ha.org/mailman/listinfo/linux-ha > See also: http://linux-ha.org/ReportingProblems > _______________________________________________ Linux-HA mailing list [email protected] http://lists.linux-ha.org/mailman/listinfo/linux-ha See also: http://linux-ha.org/ReportingProblems
