Hi everyone. I'm new to VMWare, I'm having a really serious case of very poor disk performance and It's getting hard to me to troubleshoot it.
First of all I would like to post some information that may be useful to you.
I'm running VMware ESXi, 4.1.0, 260247. The Server is an HP ProLiant ML 150 G6 - Intel(R) Xeon(R) CPU E5504 @ 2.00GHz - 8GB RAM
I have only 1 VM, Windows SBS 2003 SP2 32bits. Inside the VM we run a custom software with SQL 2005 database.
Everything worked properly. About 1 month ago I started noticing that our software started to work very slowly at certain hours of the day (One time during the morning and one more in the afternoon).
From vSphere client I could see that the storage system was performing poorly.
Here are some screen shots of the performance charts:
During During peak usage it's impossible to run our software, it gets really slow. The server never hangs, after a while (First it was 10-15 min, now up to1 hour) performance returns back to normal.
I checked for any process that may be causing de disk to perform slow (Antivirus software, backup software, etc.) and nothing is going on during that time.
I will be very grateful of any help you can give me.
If you need additional information please ask.
Kind regards
Andrés