> -----Original Message----- > From: [email protected] [mailto:ocfs2-users- > [email protected]] On Behalf Of Masaryk Kevin D > Sent: 02/24/2009 13:21 > To: [email protected] > Subject: [Ocfs2-users] mounting mpath devices > > I'm seeing some strange behavior from OCFS2 while trying to mount > mpath/dm-multipath devices under RHEL5. Sometimes I can mount the > EMC-connected, dual-pathed volumes just fine and sometimes I get > "device > busy" errors. I've tried mounting by label and also by explicit > /dev/mapper/mpathXpY name with the same unpredictable behavior. I've > also noticed that sometimes when a device is successfully mounted on > all > nodes, each node may return different output from the mount command > regarding the device mounted; e.g. /dev/mapper/mpath0p1 vs. /dev/dm-17. > > One consistent aspect I have noticed whenever I receive the "device > busy" error is that the /dev/dm-X names don't match up on each node. I > also see that ocfs2console refers to each device by the /dev/dm-X name > instead of the /dev/mapper/XX name. > > I guess my question is simply: Are dm-multipath devices supported under > OCFS2? Are multipathed devices not recommended with OCFS2? Any > documentation available on this?
We are using OCFS2 with device-mapper-multipath (4 paths) and we use the /dev/mapper/XX names. Names match across machines although we did not particular paid attention to make it the same. Regards, Ulf. --------------------------------------------------------------------- OPENLANE Inc., T: 650-532-6382, F: 650-532-6441 4600 Bohannon Drive, Suite 100, Menlo Park, CA 94025 --------------------------------------------------------------------- _______________________________________________ Ocfs2-users mailing list [email protected] http://oss.oracle.com/mailman/listinfo/ocfs2-users
