[horde] Bottleneck ? CPU or HDisk IO or RAM

[Linux Advocate]

michael, with regards to  the imap bottleneck will sata drives cut it? and yes these users do like to maintain 10,000 messages in their inbox ;) 



----- Original Message ----
> From: Michael M Slusarz <slusarz at horde.org>
> To: horde at lists.horde.org
> Sent: Tuesday, February 3, 2009 12:33:11 PM
> Subject: Re: [horde] Bottleneck ? CPU or HDisk IO or RAM
> 
> Quoting Linux Advocate :
> 
> > Guys, just wondering. For a horde groupware webmail edition, what will be the 
> bottleneck if there are about 1000 users? The CPU ? or the HDisks?
> > 
> > Will a new box with Dual Core Dual Xeons,  8GB RAM and 7.2k rpm  750 GB SATA 
> disks ( 6 )  be sufficient?
> > Anybody here got some sample specs of some running machines with the 
> groupware?
> 
> For webmail, at least, the bottleneck is almost always the IMAP server.  To a 
> certain extent, Horde/IMP can code around this (IMP 5 is much more efficient 
> with imp->IMAP traffic for example), but IMAP servers tend to be very heavy hard 
> drive I/O processes.  Especially when you have many users, and these users all 
> like to maintain 10,000+ message INBOXes.
> 
> michael
> 
> --___________________________________
> Michael Slusarz [slusarz at horde.org]
> 
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