Il 11/02/2013 22:08, Marco Scacchi ha scritto: > About your question: > > /Is it possible moving a partition formatted with ocfs file system as > standalone (I have only one node) to a clustered one ?/ > > I'm not the best support you can found here, > but, if you are speaking about ocfs2, the differences between clustered > or not filesystem should be a mount option ( -M local, or maybe you have > already a one node cluster ) > > > about this: > > /The question is this: I have to add a disk on the server, that soon > will be clusterized (Pacemaker+drbd+ocfs). > Now I configured DRBD (primary/secondary at the moment) and I have to > format it, but I'm in doubt if it's better to have ocfs working > standalone o clustered, but without a node./ > > I'm not confident to understand this one. > If you need OCFS2 over DRDB, i think you can't save your filesystem > (backup it !!!!). > Maybe your setup (primary/secondary) isn't your goal to use a clustered > filesystem. > DRDB primary/secondary is the best choice to have an ext3 filesystem > which can be mounted on the first node OR on the second node, > if you need a concurrent filesystem, mount on first node AND second > node, you need an active/active DRDB configuration. > To format an drdb device with ocfs2, you need to create it. > Here http://www.drbd.org/users-guide/ch-ocfs2.html, you can found more > detail. > > bye > > Marco > I did some tests: On the first node, I configured drbd primary/secondary and formatted the primary one with OCFS2 (mkfs.ocfs2 -L mydisk -N 1 -M local --fs-features=local /dev/drbd0). It worked perfectly.
Then I configured the second node, which at DRBD layer become secondary. At this point I configured the ocfs cluster (ocfs legacy, not with pacemaker/corosync - http://www.drbd.org/users-guide-8.3/s-ocfs2-legacy.html) and reconfigured the previous formatted OCFS FS, "telling" it that now it was in cluster (tunefs.ocfs2 -M cluster -N 2 /dev/drbd0 ). I started the cluster level of ocfs (o2cb/dlm) and mounted successfully the OCFS partition in the server filesystem. Then I configured DRBD as primary/primary, I configured the cluster level on the second node and mounted successfully the OCFS file system on both node. Regards Fiorenza -- Fiorenza Meini Spazio Web S.r.l. V. Dante Alighieri, 10 - 13900 Biella Tel.: 015.2431982 - 015.9526066 Fax: 015.2522600 Reg. Imprese, CF e P.I.: 02414430021 Iscr. REA: BI - 188936 Iscr. CCIAA: Biella - 188936 Cap. Soc.: 30.000,00 Euro i.v. _______________________________________________ Ocfs2-users mailing list Ocfs2-users@oss.oracle.com https://oss.oracle.com/mailman/listinfo/ocfs2-users
