Re: Journal Performance Problems

[ouuch@xxxxxxxxxxx]

On 1 May 2003 at 8:11, JOberholtzer@xxxxxxxxxxxx wrote:

> My first reaction was to question why the ASP2 is mirrored, unless the
> entire system is.  Mirroring requires two confirmed writes to disk prior to
> moving on to the next write, one for each disk.  Raid does not have the
> double write issue.  Thus the potential bottle neck.

So, 4 drives RAIDed in ASP2 would be better than in mirrored config?
ASP1 is mirrored with 22 drives (6718) giving 193GB total capacity.

>  Also, you did not discuss what version of the OS you are on.  Can you use
> the newer high performance journalling products?

We are at V5R1. I've read about LPP Journal Cache. Could that be helpful here?

Regards,

Oliver