Hello, A DRBD primary can serve data from the secondary (and even be diskless).
I hope this helps, Matt. 2011/10/21 Gerald Brandt <g...@majentis.com>: > Hi, > > I shut down my primary for a disk upgrade. After the upgrade, the primary > was inconsistent (obviously, it was missing 13 hours of uptime data). > > Heartbeat made the unit primary again, even though the data was inconsistent. > > How does DRBD handle reads from a known inconsistent primary? > > Gerald > > version: 8.3.7 (api:88/proto:86-91) > GIT-hash: ea9e28dbff98e331a62bcbcc63a6135808fe2917 build by root@filer-1, > 2011-03-05 08:29:38 > > 1: cs:SyncTarget ro:Primary/Secondary ds:Inconsistent/UpToDate C r---- > ns:3889896 nr:119684960 dw:123558136 dr:1413208 al:2527 bm:12480 lo:710 > pe:710 ua:710 ap:0 ep:1 wo:d oos:284816636 > [====>...............] sync'ed: 29.6% (278140/395036)M > finish: 2:19:53 speed: 33,932 (29,128) K/sec > > _______________________________________________ > drbd-user mailing list > drbd-user@lists.linbit.com > http://lists.linbit.com/mailman/listinfo/drbd-user > -- Matthieu Labbé http://mattlabbe.com/ _______________________________________________ drbd-user mailing list drbd-user@lists.linbit.com http://lists.linbit.com/mailman/listinfo/drbd-user
