Re: Antw: Re: Antw: Re: file system resource becomes inaccesible when any of the node goes down
Lars Marowsky-Bree <[email protected]> Thu, 9 Jul 2015 10:57:23 +0200
| Newsgroups | gmane.linux.highavailability.user,gmane.comp.clustering.clusterlabs.user |
|---|---|
| Message-ID | <[email protected]> |
On 2015-07-07T12:23:44, Ulrich Windl <[email protected]> wr= ote: > The advantage depends on the alternatives: If two nodes both want to acce= ss the same filesystem, you can use OCFS2, NFS, or CIFS (list not complete)= . If only one node can access a filesystem, you could try any journaled fil= esystem (a fsck is needed after a node crash). A journaled file system does not require a fsck after a crash. > If you use NFS or CIFS, you shift the problem to another machine. > = > If you use a local filesystem, you need recovery, mount, and start of you= r application on a standby node. > = > With OCFS2 you'll have to wait for a few seconds before your application = can continue. The recovery happens in the background with OCFS2 as well; the fs replays the failed node's journal in the background. The actual time saved by avoiding the "mount" is negligible. Regards, Lars -- = Architect Storage/HA SUSE Linux GmbH, GF: Felix Imend=F6rffer, Jane Smithard, Dilip Upmanyu, Gra= ham Norton, HRB 21284 (AG N=FCrnberg) "Experience is the name everyone gives to their mistakes." -- Oscar Wilde _______________________________________________ Linux-HA mailing list is closing down. Please subscribe to [email protected] instead. http://clusterlabs.org/mailman/listinfo/users _______________________________________________ [email protected] http://lists.linux-ha.org/mailman/listinfo/linux-ha