[Ocfs-users] copy error + control file corruption in ocfs 1.1 0

[Wim Coekaerts]

> > The second problem is still there:
> > - Make the first control file corrupt.
> > The database has crashed now.

how do you corrupt the first control file ?

I guess I don't see this happening at all here

> > 
> > - Copy the second controlfile over the first controlfile:
> > cp --o_direct ../a2/control02.ctl ./control01.ctl
> > 
> > - Restart the database:
> > [oracle at prac01 a1]$ srvctl start database -d test
> > PRKP-1005 : Failed to start up cluster database test
> > ORA-00227: corrupt block detected in controlfile: (block 315, # blocks 1)
> > ORA-00202: controlfile: '/oradata/test/a1/control01.ctl'
> > 
> > Any ideas?
> 
> 
> For this second part of the problem, the only thing that springs to mind
> is that something else is poking the control file with writes while the
> cp is happening.
> 
> 
> an "lsof ./control01.ctl" should show up what other processes have the
> file open
> in the 'FD' field look for processes that have a 'w' or 'u' attibute as
> these will be the ones that have write access to ./control01.ctl but
> please note that a gulity process may not be open/writing at the time
> you issue the lsof
> 
> eg
> [root at emerald root]# lsof  /var/log/messages
> COMMAND  PID USER   FD   TYPE DEVICE   SIZE   NODE NAME
> syslogd 1997 root    1w   REG    3,7 241697 131655 /var/log/messages
> (file descriptor 1 with write access)
> 
> [root at emerald root]# lsof  /var/log/maillog
> COMMAND  PID USER   FD   TYPE DEVICE  SIZE   NODE NAME
> syslogd 1997 root    3w   REG    3,7 11024 131657 /var/log/maillog
> (file descriptor 3 with write access)
> 
> Phil
> =--=
> 
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