[Ocfs-users] OCFS Questions

Wim Coekaerts wim.coekaerts at oracle.com
Thu Sep 2 19:33:30 CDT 2004


ok so you're doing massive read so I assume there is more stuff
happening on the box. are you doing db queries or something to have this
much reads going ?

the writes are pretty low, I don't think by itself it will make a big
difference. you should be ok

On Fri, Sep 03, 2004 at 07:33:23AM +0700, Jeram wrote:
> Hi Wim...
> 
> Herewith I am sending you the VMSTAT 1 10 output.
> 
> Please Advice...
> 
> Rgds/Jeram
> 
> -----Original Message-----
> From: Wim Coekaerts [mailto:wim.coekaerts at oracle.com] 
> Sent: Thursday, September 02, 2004 8:03 AM
> To: Jeram
> Cc: 'Wim Coekaerts'; ocfs-users at oss.oracle.com
> Subject: Re: [Ocfs-users] OCFS Questions
> 
> if you have a few controllers so that there are multiple queues you
> should be ok.
> 
> run     vmstat 1 10 when not much is going on and email that ?
> if you have no io wait if oracle is not running but it's just mounted,
> little or a lot of io won't be a problem
> 
> On Thu, Sep 02, 2004 at 08:02:51AM +0700, Jeram wrote:
> > Hi Wim...
> > 
> > Thanks a bunch for ur quick reply. 
> > Currently I am using 51 Mount Points, event I have not meet any problems
> > since my database still having low Load, I just wonder if the DB load
> > increase it will have some performance issues. We are using EVA6000
> Storage
> > with 17TB HDD size....
> > 
> > Please advice...
> > 
> > 
> > -----Original Message-----
> > From: Wim Coekaerts [mailto:wim.coekaerts at oracle.com] 
> > Sent: Thursday, September 02, 2004 7:50 AM
> > To: Jeram
> > Cc: ocfs-users at oss.oracle.com
> > Subject: Re: [Ocfs-users] OCFS Questions
> > 
> > 
> > > 1. What is the Maximum mount point suggested if we are using OCFS ?
> > 
> > 20-30 seems to not be a problem, if you have real hardare with a good
> > setup, we have seen folks use up to 60
> > 
> > > 2. Is there any method to tune the OCFS to booster the IO performance?
> > 
> > uhm, we are equal to raw. I dont' think so.
> 





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