From: LAI Yiu Fai (ccyflai@ust.hk)
Date: Tue Nov 09 2004 - 22:12:24 EST
Thanks all replies and your valuable comment. I agreed most of us that
email application is not CPU-intensive but I/O. A large CPU cache that
crunching a common set of data in memory fast may not help in this aspect.
At the same time, we are moving the mailbox to a new SAN storage array
that increase the total IO throughput. As our 280R (750MHz UltraSPARC-III)
was a bit dated and it is time to look for replacement. Most would suggest
V440 for price/performance reason and I probably go for it.
-Fai
On Mon, Nov 08, 2004 at 12:21:25PM +0800, LAI Yiu Fai wrote:
> We are looking for replacing our old 280R server running Sun Java Messaging
> Server for around 8000 users. The potential candidate would be a 4-CPUs
> V440 or V480 (the newest V490 would be probably out of budget). I know the
> main difference would be 1MB vs 8MB L2 cache. However, I have no idea the
> L2 cache play a role in email application.
>
> The primary concern is that we will significantly increase the mailbox quota
> to 200M-500M per user, and with around 1 TB data attached to our SAN.
> Consider handling of large amount of data and highly multithreaded IMAP
> server, should I go for UltraSPARC IIIi or UltraSPARC III? Does the L2
> cache matter in overall performance?
>
> -Fai
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