Our website started to get too big, so it's time to move to a VPS. The setup i have on my mind is Ubuntu 12.04 Server + Nginx + PHP-FPM + APC + Varnish... but my host said i would not need Varnish just yet, since we have around 10k daily visitors, and we would not see any performance gain. Is that right? I don't think so, but... they are the experts, not me.
Also, i'm thinking about doing this:
Page cache: disk (enhanced)
DB cache: APC
Object cache: APC
I decided to do that way cause i saw Frederik saying here and there that disk (enhanced) is better for Page cache. Is that right? Should i use it for minify too or use APC for everything? Our server run SAS 15,000 RPM disks in RAID 10, with OnApp, would disk cache be fast enough?
Thanks in advance :)