by Séverin Terrier.
Hi Richard,
We try to keep courses in reasonnable size, but we also have some that can't backup well from time to time.
I'll try to answer your questions :
- With automatic, it's hold automatically by cron, with specified date/hour. With manual, you have to manually launch the dedicated task, or cli script
- I launch at 0h05 on day 0 (sunday), 2 and 4
- I keep a max of 5 backups, and 2 minimum
- i invoque the cli script with memory_limit=2048M (perhaps less would be sufficient)
- Course 1 is empty if you don't include logs! Otherwise, everybody always let logs in it, and it's gigantic!
Related to this, i created MDL-60296 last year to allow skip some (big) courses in the future.
HTH,
Séverin