Thanks to your donations, I could buy much better server. Now HamQTH VPS (virtual private server) has 3GB RAM and 90GB HDD. The old server has only 1GB RAM. I did tons of optimization but last few months the server was overloaded most of the time.
I'm going to move HamQTH to new server tomorrow (2012-09-12) early morning local time (around 02:00 UTC). It will be offline for 30 minutes or so. I already tried to move whole database (almost 4GB),users data (over 15 000 files), small programs which are running on background like ADIF import, FCC daily transaction import, DXCC XML search, utility that collects spots from RBN and DX cluster, another utility that reads spots directly from DX spider data files and do some statistics (DXCC, LoTW, eQSL) before stores it into database. Also tried to move scripts like auto backup, download eQSL, LoTW and DXCC tables etc. It worked quite well but I had to do some tweaks because new server is running on Ubuntu 12.04 server with MySQL 5.5. Older server has Ubuntu 10.04 with MySQL 5.1 installed.
I must say, new sever is far faster than the old one. I did some tests and it's excellent. From 3GB of memory I gave 1.8GB only to MySQL to cache indexes and data. So please fingers cross. I'll need that.
I would like to thank you for donations. Without them, it wouldn't be possible to buy this new server. Now I can add more new functions because I won't be limited with 1GB of RAM. Thank you!!