After loosing our mail server due to hardware failure a couple weeks ago I'm in the process of rebuilding a new server. I moved the e-mail to a temporary server, but need to get it to it's own server soon. After running Kerio for the past 3 years, I've noticed that the most significant bottle neck to performance is hard disk performance. I've looked into high performance SAS RAID systems, and even SSD drives.
The cost of such high performance disk systems does push the price up considerably. So, what I'm wondering now is what impact simple Windows folder compression will have on Kerio. Compressing the "store" folder and everything under it. My observations of CPU performance and memory performance under Windows were close to nothing compared to the disk usage data. I know compression will lower the amount of disk writes needed, and if I've got CPU to spare it seems logical that this might be a good move. I'm only concerned if the rate of file error failures increases in this setup.
So, what I see is...
- Better storage
- Faster disk access (my hope at least)
- Better use of CPU and Memory resources
- Failure rate may increase (unconfirmed)
- May not help performance at all
I tried this concept on a firewall logging system, which is a computer set to only store and report network firewall activity. I saw the disk usage drop to 1/3 of what it was previously, and CPU usage only increase about 10%. I don't think I'd see the same disk usage drop, but if it dropped any it would be a good thing. We have almost 100 users, and over 100 Gigabyte of e-mail data currently.
Anyone have any suggestions or thoughts on this idea?
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