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.... We are currently running OCFS2 1.2.5, the kernel is EL4 Update 5 x86_64 (2.6.9-55.ELsmp). I see there is one bug fixed in 1.2.6/1.2.7 related to DLM and I was wondering if the above problem could be related to it or if this is something different. Ulf Zimmermann | Senior System Architect ATC-Onlane, Inc. 4600 Bohannon Drive, Suite 100 Menlo Park, CA 94025 O: 650-532-6382 M: (510) 396-1764 F: (510) 580-0929 Email: ulf@atc-onlane.com | Web: www.atc-onlane.com DISCLAIMER: This e-mail and any attachments are confidential and also may be privileged. If you are not the named recipient, or have...

...I find seems to indicate I have to unmount, run /etc/init.d/ocfs2 stop, /etc/init.d/o2cb restart and then /etc/init.d/ocfs2 start. Is there no way of telling o2cb there are two new nodes? Like a /etc/init.d/o2cb reconfigure? --------------------------------------------------------------------- ATC-Onlane Inc., T: 650-532-6382, F: 650-532-6441 4600 Bohannon Drive, Suite 100, Menlo Park, CA 94025 ---------------------------------------------------------------------

...usly will go through and recover the journal but unless I mount/umount the volume once, tunefs will come back with dirty file system. Are there any other steps I should be doing or does this sequence look ok? Regards, Ulf. --------------------------------------------------------------------- ATC-Onlane Inc., T: 650-532-6382, F: 650-532-6441 4600 Bohannon Drive, Suite 100, Menlo Park, CA 94025 ---------------------------------------------------------------------

...I can not reproduce this problem with a DL380 g4 with 6i controller. Tried the included cciss driver in EL4 Update 5 and the one provided by HP. No difference. Any tips what to look at would be appreciated. Regards, Ulf. --------------------------------------------------------------------- ATC-Onlane Inc., T: 650-532-6382, F: 650-532-6441 4600 Bohannon Drive, Suite 100, Menlo Park, CA 94025 ---------------------------------------------------------------------

We just installed a new cluster with 6 HP DL380g5, dual single port Qlogic 24xx HBAs connected via two HP 4/16 Storageworks switches to a 3Par S400. We are using the 3Par recommended config for the Qlogic driver and device-mapper-multipath giving us 4 paths to the SAN. We do see some SCSI errors where DM-MP is failing a path after get a 0x2000 error from the SAN controller, but the path gets puts

We got a remote Oracle 10g R2 standby running on OCFS2. Initial when we started the standby, read I/O was < 5MB/sec on average. Since then it has grown to over 40MB/sec (longer average, it peaks much higher). Here is a graph showing this: http://www.alameda.net/~ulf/dbphx01.png We also have a local standby running (on EXT3) which is not showing the same symptom. I am trying to find where all