Caching

Caching

Directory File stored in RAM will full list of cached website, backup file saved to HDD.
Cached content stored in either RAM or a single file on HDD
HTTPS sites are not cached.
ISA Cache
ISA HTTP Cache
  • Frequently - will immediately expire, unless configured on source website
  • Normally - Default (cache stores files 20% of age since it was created)
 
FTP caching is enabled by default for 24 hours
ISA FTP Cache
Active caching updates files stored in cache when TTL is about to expire, will download when low CPU usage on server.
ISA active caching
 
ISA Cache advanced settings
  • Increase maximum size of URL to 128000

Cache Drives

ISA Cache Drives

Scheduled Content Download

Over rides default cache settings
ISA Content Download Schedule
ISA download content
ISA Content TTL