Translated from Portuguese into English by the google translate.
- Netfinity IBM x3400 server
Intel Xeon Core2Quad
2 HDs SAS 15K rpm of 145 GB in RAID 1 through hardware
- Distribution Ubuntu Server amd64 TLS 8:04
- Partitions in LVM and ext3
- ZCS GA 5.0.16 deb package for ubuntu 8:04 64bit
- 4 Domains
- 124 accounts, with 100 accounts in constant use.
- Server inside the internal network connected to the network with Gigabit cable Certified.
- The Company has structured cabling and switchs 10/100Mbit 3con
20 new machine (Core Duo and Core2Duo with 2GB RAM)
50 best machine (P4 with 512MB and 1GB RAM)
30 old machines (Pentium 133, MMX 233, P2 and most PIII 500 with 64MB RAM) - These are using Thunderbird connecting via IMAP
All workstations are connected all the time in web zimbra in a flow of 1500 emails/h
The OS of the machines go to the Win95 up to Vista, according to the capability of hardware.
In principle we try to use the web zimbra with AJAX interface and the machines but, only top machines has satisfatory performance.
The best machines, we try to use the HTML interface, but was a disaster, vvveeeerrrrryyyyyy slow, where a simple backpace the publishing of a message came to take 15 seconds plus 15 seconds for another character plus 15 seconds another character. The Zimbra had a bad evaluation of users.
Monitoring the server can not find more than 80% of CPU usage in a single core, whereas in the group of 4 processing cores did not reach 40%. The evil came to 3GB memory actually used. The Swap is intact since the activation of the server and free space of HD is almost 80GB.
Workaround: Thunderbird / IMAP for everyone! But he and other resources? Yeah, the server was reduced to a simple mail server!
I would like to help me adjust the settings of the Zimbra and discover how to obtain a correct performance.