[ale] fiber channel mounts

[scott]

OCFS2 works very well with oracle...  GFS is a general purpose  
clustered filesystem...

Sent from my mobile...

On Dec 7, 2009, at 12:30, "Jeff Lightner" <jlightner at water.com> wrote:

> You could get OCFS2 (open source) from Oracle’s web site.  It’s  
> designed to allow you to use the same storage in a clustered configu 
> ration.  We use its predecessor OCFS for one of our old Oracle RAC e 
> nvironments but RAC isn’t required as OCFS2 handles its own clusteri 
> ng setup.  Its also reportedly a much improved product over OCFS(1). 
>    It uses Linux’ O_DIRECT stuff for the file sharing so the tools y 
> ou use have to be O_DIRECT aware and I think most of the newer ones  
> (tar, ls, cp, mv etc…) are.   When we did it back on RHEL3 (2.4 kern 
> el) we had to load the utilities Oracle had made that were (also ope 
> n source).
>
> Also GFS I believe is designed for similar usage and is native to  
> most distros but I haven’t used it.
>
> From: ale-bounces at ale.org [mailto:ale-bounces at ale.org] On Behalf Of  
> Jim Kinney
> Sent: Monday, December 07, 2009 11:33 AM
> To: Atlanta Linux Enthusiasts - Yes! We run Linux!
> Subject: [ale] fiber channel mounts
>
> I have a netapp joined by fiber channel to 2 linux head end servers.  
> I'm using multipath fiber channel in an active/active mode for  
> maximum data throughput.
>
> box 1 can write a file and read that file is there. Box 2 can't see  
> the file exists.
> box 2 can write file and see it on the netapp but box one does not  
> see it.
>
> run sync on both boxes and umount/mount the netapp storage space  
> again.
> both box 1 & 2 see the file written from box 1 but the file written  
> from box 2 is gone.
>
> this is bad. Clearly I have a misconfiguration somewhere! Box 2  
> shows errors related to ext3 journal corruption so ext3 is NOT a  
> good choice.
>
> Box 2 is supposed to be a failover database and the netapp is the  
> storage for the database files. I would prefer for the failover to  
> be closer to a hot standby than a cold standby but it looks like I  
> can't keep the netapp partition mounted on box 2 if box 1 is still  
> live. I'm not running the database at all on box 2.
>
> -- 
> -- 
> James P. Kinney III
> Actively in pursuit of Life, Liberty and Happiness
>
>
> Proud partner. Susan G. Komen for the Cure.
>
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