We are looking at a very large installation. One that will average around 600,000 hits a day with heavy loads at 900,000.
How much is that in terms of average number of users logged in per day, or the amount of data transferred (in and out) per day?
It would have a fiber connection and be on a SAN with two 300 gig raid 5 drives. 4gig ram, quad 2.8 xeon processors.
What is the maximum throughput of the SAN system? I mean something like copying 1 GB to /dev/null.
What do you recommend as far as a PHP Accelerator. I am only familiar with Turke.
I also use turck, no idea about the others. The official documentation recommends it http://docs.moodle.org/en/Performance should be OK. My understanding is that turck is recommended for 32 bit (Linux I mean) and PHP4. Any experience otherwise?
What other hardware or setup recommendations might you have. We would have about 22,000 students using Moodle.
That is a tough question to answer, sorry. These two current discussions may have some pointers for you http://moodle.org/mod/forum/discuss.php?d=39903 and http://moodle.org/mod/forum/discuss.php?d=40836