-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Thank you, I was only looking at the mkfs.lustre didn't think the hosts are the ones that need to look there, not mgs filesystem its self.
does the mgsspec also work for --mgsnode= when creating a file system? mkfs.lustre .... [EMAIL PROTECTED]:[EMAIL PROTECTED] Would that be valid? Brock Palen www.umich.edu/~brockp Center for Advanced Computing [EMAIL PROTECTED] (734)936-1985 On Jul 30, 2008, at 10:29 AM, Brian J. Murrell wrote: > On Wed, 2008-07-30 at 09:48 -0400, Brock Palen wrote: >> The manual does not make much sense when it comes to MGS failover. >> >> Manual: >> >> Note – The MGS does not use the --failnode option. > > This is true. > >> You need to set the >> command on all other nodes of the filesystem (servers and clients), >> about the >> failover options for the MGS. > > This is true also. > >> Use the --mgsnode parameter on servers >> and mount >> address for clients. > > Also true. > >> The servers need to contact the MGS for >> configuration >> information; > > Also true. > >> they cannot query the MGS about the failover partner. > > This part is either unclear or wrong. I guess the question is what > the > writer was referring to as "they". You could file a bug about that. > >> This does not make any sense at all, other than you can't use -- >> failnode > > On the MGS, yes. On servers, yes you can use that option. > >> and that clients can't check with two different hosts for >> MGS data. > > They sure can! That's what the "<mgsspec>:=<mgsnode>[:<mgsnode>]" > syntax in the mount.lustre manpage is all about. > >> Our MGS will be on its own LUN setup with heartbeat >> between two nodes that are also working as an MDS pair. > > Good. > >> While >> Heartbeat takes care of mounting the MGS file system, how can we tell >> clients "if mds1 is down use mds2 for MGS data" > > $ man mount.lustre > > Check out mgsspec in the OPTIONS section. > > b. > > _______________________________________________ > Lustre-discuss mailing list > [email protected] > http://lists.lustre.org/mailman/listinfo/lustre-discuss -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (Darwin) iD8DBQFIkH5JMFCQB4Bvz5QRArwBAJ0TBBFVIBWiLQIt1e6kbG/n6Ufn5wCcCx1L /KJFr81OkKkuTTW0N4LtcUk= =hfmn -----END PGP SIGNATURE----- _______________________________________________ Lustre-discuss mailing list [email protected] http://lists.lustre.org/mailman/listinfo/lustre-discuss
