I suspect "mon force standby active" is your problem: http://ceph.com/wiki/Standby-replay_modes#mon_force_standby_active Try disabling that? On Wed, Oct 31, 2012 at 6:02 PM, Matt Weil <mweil@xxxxxxxxxxxxxxxx> wrote: > I have a system with a bunch or ram that I want to remain the active MDS but > still have a backup. > > This config doesn't seem to be working. I can make linuscs92 the active by > stopping and starting the mds on linuscs95. It would be nice for linuscs92 > to be the active from the start. > > [mds.linuscs95] > host = linuscs95 > mds standby replay = true > mds standby for name = linuscs92 > > Also about disk write cache. > > If the Data center, servers and storage units are backed by redundant power > sources, Batteries and a generator. Is the concern for data loss less? As long as your disk caches respect write flushing and ordering commands, everything should be safe regardless of whether they're battery-backed or not. :) -Greg -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
