- 6,413 courses (created via external database enrolment plugin) but only 105 of these courses are currently active (available to students)
- 60,499 Users (LDAP sync with Novell eDirectory) but only 7,798 have logged in. 192 of these users are Teachers
- The most logins we have had are: 4138, unique logins: 2107
VMware ESX 3.5 virtual machine
CPUs : 4, RAM : 8 GB, Swap partition : 2 GB
LSI Logic SCSI Controller
Hard Disk 1 = 50 GB virtual disk
Hard Disk 2 = 100 GB mapped raw LUN on iSCSI SAN (database)
Hard Disk 3 = 500 GB mapped raw LUN on iSCSI SAN (moodledata)
OS SLES 10 Service Pack 2
APC PHP accelerator
Moodle: 1.9.7 +
I am concerned by 'Insert into log failed' errors we have been receiving in the last few days. (mdl_log contains 825,206 records, the db is not corrupt and the disk is not full)
We currently have both Statistics and Course backups (3 x a week) turned on.
And run the auth_ldap_sync_users.php and enrol_database_sync.php scripts in the early hours of each morning.
I would really appreciate input and advice - especially related to the configuration, stability and scalability of our system as the number of active courses is increasing daily.