byond - Modules - Types

code/controllers/mc/failsafe.dm

/var/Failsafe Failsafe
/proc/recover_all_SS_and_recreate_master Recreate all SSs which will still cause data survive due to Recover(), the new Master will then find and take them from global.vars
/proc/delete_all_SS_and_recreate_master Delete all existing SS to basically start over