On Thu, 12 Dec 2002, Christopher Crowley wrote:

> I have a server resource problem, and need to take immediate action.
> I have very fast disk available to this e-mail server: a 3-plex FC
> mirror served by a SAN. 

first, let me say i have no idea what a plex mirror is.
but i'm gonna give my not-so-expert feedback on this anyway.

> 
> I would like to move the qpopper processes from my monolithic email
> server (mail, it is a Sun E3500 6Gb Ram, 6 processor) to an adjacent
> server to offload processing. I would accomplish this by manipulating
> network traffic with a Level 2 switch.
> 

wouldn't you need to manipulate it at the packet level to reroute pop 
traffic, i.e. a level 3 switch?

> The problem of doing this is of course file access to the spool
> directory.  Everything that I have read is that Solaris 8 NFS (NFS 3)
> doesn't properly safeguard against file corruption, and could result
> in silently lost e-mail.
> 

being i dont know about the plex, i dont know if your current storage 
access is local disk or already remote NFS?

> I am looking to offload the POP3 traffic for two reasons.  First, it
> seems to be simpler to address that offloading IMAP.  Second, large
> mailbox users ( 50+ MB ) appear to spike CPU utilization on the mail
> server.
> 

so, you want to keep IMAP on the sun, and move POP3 to the stated adjacent 
server?
can any particular user access their mailbox through imap or pop3? or are 
they each limited to a specific protocol?

--Tony
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Anthony J. Biacco                            Network Administrator/Engineer
[EMAIL PROTECTED]              http://www.asteroid-b612.org

            "This will prove a brave kingdom to me, 
                  where I shall have my music for nothing"
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