Archive for November, 2005

Heartbeat on Fedora Core 4

Here are the steps I took to get heartbeat ( from linux-ha ) to run on Fedora Core 4 (fc4). It is by no means a clean install, but it appears to work for us at the moment. First download the RPM’s from I am using version 2.0.2 today. Then I installed curl to […]

Friday Maintenance

For the past few weeks the load on our email servers, specifically the ones responsible for imap/pop/webmail, have been unable to keep up with the increasing demand. Thus causing access to imap/pop/webmail to be unavailable during times of peek usage. Delivery of email was not affected. To help alleviate the issue, we have spent the […]

Friday’s Upgrades

Every day it seems like we are sending and recieving more and more email. That means every day our email system is more and more loaded. A couple of weeks ago we hit the limit as to how much email our disks could handle for everyone’s inboxes. We store all the users inboxes on a […]

Horde, IMP, and imapproxy

So it turns out that the cache in imapproxy that we turned on yesterday has a problem. First of all, it seemed to work great. I think webmail was more responsive and there was a reduced load on our mail disks. However not all was well. It seems like some times when you deleted a […]

Email performance

As many people have noticed, email performance during our peak usage time (9:50am-10:20am) has been extremely poor. The main reason we believe is that the disk drives our email inboxes are stored on are just not fast enough. Currently we are using a Sun T3 disk array with a 1Gig cache and 9 fibre-channel disk […]