100 user Installation - Network Edition

[dfriestedt]

We are looking at changing from Groupwise to Zimbra on a 100 user installation. I expect that to grow to 150 within a few years. What is the recommended hardware configuration - processor, drives, RAID, RAM, etc?

Right now groupwise is pretty slow due to poor disk performance. We are running it on RAID 5 w/ 10K drives. We have about 300G of data.

Thx

[mmorse]

Just an FYI RAID 5 is not recommended for systems with more than 100 accounts.
-You could do RAID 10 on ext3 for performance & redundancy.
-2GB RAM minimum (upgrading RAM will give you your biggest performance boost later on).
-Are all these users active 100% of the time/a given day? Average mail traffic, sizes, etc?
-For the proc question there's a lot of personal preference involved as well...
The official ZCS sys requirements list.