Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
To keep 3 or more identical server nodes you can try OpenSSI (www.openssi.org) + DRBD. It supports network boot and diskless nodes - up to 125 at the moment. All filesystems (including DRBD ones) are visible across all nodes and can transparently failover without having to setup heartbeat. Roger >From: Maciej Bogucki <maciej.bogucki at artegence.com> >To: drbd-user at lists.linbit.com >Subject: [DRBD-user] Re: DRBD on /dev/md[x] devices >Date: Thu, 08 Dec 2005 15:57:38 +0100 > >>The idea was to keep three identical disks in three server nodes. >>Any of the two standby (secondary) nodes could at any time take over >>as operative (primary) node. It should also be possible to separate >>one node and use it for test purpose with all the dynamic data up to date. >>This when still keeping the other two nodes in a primary/secondary >>connected configuration. >>One of the primary drbd devices could perhaps run diskless, to >>avoid a redundant disk device? > >Software RAID isn't good for data replication. You can read more here: >http://wwnew.linux-ha.org/_cache/BusinessContinuity__da.pdf > >Best Regards >Maciej Bogucki > >_______________________________________________ >drbd-user mailing list >drbd-user at lists.linbit.com >http://lists.linbit.com/mailman/listinfo/drbd-user