[Ocfs-users] Moving ocfs file system to a new SAN

[Wim Coekaerts]

actually the -m stuff is not really used. you can mount wherever you
want it. so that should not cause any rtrouble. just ignore what the
value is.

make sure you use our updated utils with the dd that supports o_direct
and dd the files over, and use o_direct=yes and bs=10M or so. or at least
1Mb in size   it will be much better.


Wim

On Wed, Jul 07, 2004 at 02:12:39PM +1000, Robin Burridge wrote:
> Hi,
> 
> We are currently rolling over our SAN (FC4700 to CX700) and have now 
> reached the data migration stage. I need to move the data files on my 
> current /u01 ocfs file system (on FC4700) to a new ocfs file system (on 
> CX700) which I want to keep as the same /u01 mount point on the hosts.
> 
> With a normal file system I would just mount the new file system to a 
> temporary mount point, copy the data, unmount the old file system and 
> mount the new one on the correct mount point. However when creating ocfs 
> file systems using mkfs.ocfs the -m switch is used to specify the mount 
> point.
> 
> My question is that if a file system is created using -m switch of /u01 
>  can this ocfs file system then be mounted on a host on a different 
> mount point that already has an existing ocfs mounted on /u01?
> 
> I can of course restore the data files from the backup tape but I'd 
> rather copy from disk to disk.
> 
> Thanks
> 
> Robin
> 
> -- 
> Robin Burridge
> Unix Systems Administrator
> Information Technology Division,
> University of Technology, Sydney
> PO Box 123, Broadway NSW 2007
> 
> Building 1, Level 9, Room 9.16
> 
> Phone  (02) 9514  2091     Mobile  0419 230 252
> Fax    (02) 9514  1994
> 
> 
> 
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