Re: veritas mount options

From: James Williams <willjamu_at_mindspring.com>
Date: Sun, 27 Mar 2005 20:23:16 GMT
Message-ID: <42471698.78827542@news.east.earthlink.net>

On 8 Dec 2004 07:07:29 -0800, jernigam_at_kochind.com wrote:.

I gave seen the same things on Sun Disks also.

I just let the datafiles cache and use DELAYLOG=YES and seem to get the best performance. It wastes storage but this is the way I have been sucessful.

Otherwise quick I/O are raw (yuck!).

>I am using VXFS on my A5200 disk array. I have seen several posting
>that said the best mount options are "mincache=direct,
>convosync=direct". I tried this and my performance degraded. In some
>cases processes started taking 50% longer. Initially I set this on all
>volumes. Then I tried only setting it on the volumes with datafiles
>and redo logs. I tried the dsync option on the volumes with the rbs
>and temp segments. All of these configurations showed a degradation
>in performance.
>
>Any ideas?
>
Received on Sun Mar 27 2005 - 14:23:16 CST