[Ocfs2-users] Problem installing CRS

[Marcos E. Matsunaga]

Martin,

See my answers below:

Martin Norland wrote:
> I'm trying to install 10.2.0.1 (and then patch up to 10.2.0.3).  The
> first step, of course , is to install CRS - but I'm getting the
> following error when trying to specify the OCR location:
>
> "The location /u02/ocr, entered for the Oracle Cluster Registry (OCR) is
> a directory.  Specify a shared raw partition or cluster file system file
> that is visible by the same name on all the nodes in the cluster."
>
>   
The message here is clear. You are specifying a directory and not a
file. Best thing to do would be to create a subdirectory under the mount
point (/u02) and then the OCR file. I may be wrong, but I think there is
a but that prevents the CRS to create file directly on the mount point.
> The intention is to have 3 small partitions for the {2} OCR and {3} CSS
> mirror(s), but I can't seem to get Oracle to acknowledge they're
> clustered.  The clustered filesystems work fine, and cluvfy recognizes
> them as shared.
>
> =========
> === relevant lines from /etc/fstab:
> /dev/sdc1           /u02                  ocfs2
> _netdev,datavolume,nointr 0 0
> /dev/sdc2           /u03                  ocfs2
> _netdev,datavolume,nointr 0 0
> /dev/sdc3           /u04                  ocfs2
> _netdev,datavolume,nointr 0 0
>
>   
Make sure the device are mounted on the same mount point on both nodes.
Better use LABEL=<volume label> instead of the device. That will prevent
problems in case of device name changing.
Also, make sure you can create a file on one node and see the same file
on the other node. The CRS install script will do the same and compare
them to make sure the devices are shared.
> === Excerpt from `./runcluvfy.sh stage -post hwos -n rac01,rac02
> -verbose`
> Checking shared storage accessibility...
>
> WARNING:
> Unable to determine the sharedness of /dev/sda on nodes:
>         rac02,rac01
>
>   Disk                                  Sharing Nodes (2 in count)
>   ------------------------------------  ------------------------
>   /dev/sdb                              rac02 rac01
>   /dev/sdc                              rac02 rac01
>
> === Permissions
> # ls -ald /u02 /u02/ocr/ /u02/css/
> drwxrwx---  6 oracle dba 4096 Mar  6 17:47 /u02
> drwxrwx---  2 oracle dba 4096 Mar  5 20:09 /u02/css/
> drwxrwx---  2 root   dba 4096 Mar  5 20:08 /u02/ocr/
> =========
>
> It's worth noting that I was mounting these through powerpath, but
> backed off to /dev/sd identifiers in an attempt to get Oracle to
> recognize them (since cluvfy wasn't acknowledging /dev/emcpower's).  I'd
> originally intended to mount these off /u0#/cd#/, but also backed down
> in attempt to get Oracle to spot them.
>
> Any thoughts or any glaring holes in my setup that this noob is missing?
> I didn't find anything on metalink related to this error, other than
> recommendations to use raw devices (recommendations for a different
> configuration).
>
> Thanks,
> -M
>   

-- 

Regards,

Marcos Eduardo Matsunaga

Oracle USA
Linux Engineering

7453 TG Lee Blvd     | Email     : Marcos.Matsunaga at oracle.com
Orlando, FL 32822    | Phone/Fax : (407)458-1710

A crisis is when you can't say "Let's forget the whole thing."
---------------------------------------------------------------------------------------
The statements and opinions expressed here are my own
and do not necessarily represent those of Oracle Corporation.


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