[Ocfs2-users] PBL with RMAN and ocfs2

[Gaetano Giunta]

Thanks, but I had alreday checked out all logs I could find (oracle and crs alerts, /var/log stuff) and there was no clear indication in there.

The trick is the ocfs was sending the alert message to the console only (I wonder why it does not also leva traces into syslog, my best guess is it tries to shutdown as fast as it can, and sending a message to console is faster than sending it to syslog - but I'm in no way a linux guru...).

By using the netdump tool suggested by Sunil I managed to see the console messages of the dying node (without having to phisycally be in the server farm, which is 40 km away from my ususal workplace), and diagnosed the ocfs2 heartbeat as "the killer".

Bye
Gaetano
  -----Original Message-----
  From: Luis Freitas [mailto:lfreitas34 at yahoo.com]
  Sent: Thursday, May 10, 2007 11:17 PM
  To: Gaetano Giunta
  Cc: Ocfs2-users at oss.oracle.com
  Subject: Re: [Ocfs2-users] PBL with RMAN and ocfs2


  Gaetano,

      If o2cb or CRS is killing the machine, it usually shows on /var/log/messages with lines explaining what happened. Take a look on the /var/log/messages just before the last "syslogd x.x.x: restart".

  Regards,
  Luis



  Gaetano Giunta wrote:
  > Hello.
  >
  > On a 2 node RAC 10.2.0.3 setup, on RH ES 4.4 x86_64, with ocfs 1.2.5-1, we are experiencing some troubles with RMAN: when the archive log destination is on an ASM partition, and the backup detsination is on ocfs2, running
  >
  > backup archivelog all format '/home/SANstorage/oracle/backup/rman/dump_log/FULL_20070509_154916/arc_%d_%u' delete input;
  >
  > consistently causes a reboot.
  >
  > The rman catalog is clean, and has been crosschecked in every way.
  >
  > We tried on both nodes, and the node executing the backup always reboots.
  > I am thus inclined to think that it is not the ocfs2 dlm that triggers the reboot, because in that case the victim would always be the second node.
  >
  > I also tested the same command using as backup destination /tmp, and all was fine. The backup file of the archived logs is 1249843712 in size.
  >
  > Our local oracle guy went through metalink and said there is no open bug/patch for that at this time.
  >
  > Any suggestions ???
  >
  > Thanks
  > Gaetano Giunta
  >
  > 
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