[ale] fiber channel mounts

[scott]

With my tests OCFS has less performance/functionalities than GFS when  
used without oracle.

Sent from my mobile...

On Dec 7, 2009, at 12:56, "Jeff Lightner" <jlightner at water.com> wrote:

> I’m saying while OCFS2 was initially designed for Oracle there is no 
> thing prohibiting one from using it for other purposes since it is O 
> pen Source (i.e. no cost).
>
> However, it probably makes more sense to investigate GFS first if yo 
> u’re not already familiar with OCFS2.
>
> From: ale-bounces at ale.org [mailto:ale-bounces at ale.org] On Behalf Of  
> scott
> Sent: Monday, December 07, 2009 12:40 PM
> To: Atlanta Linux Enthusiasts - Yes! We run Linux!
> Cc: Atlanta Linux Enthusiasts - Yes! We run Linux!
> Subject: Re: [ale] fiber channel mounts
>
> 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 confi 
>> guration.  We use its predecessor OCFS for one of our old Oracle R 
>> AC environments but RAC isn’t required as OCFS2 handles its own cl 
>> ustering setup.  Its also reportedly a much improved product over  
>> OCFS(1).   It uses Linux’ O_DIRECT stuff for the file sharing so t 
>> he tools you 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 R 
>> HEL3 (2.4 kernel) we had to load the utilities Oracle had made tha 
>> t were (also open 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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