SFA Appliance Structure.
SFA appliance is the server, which integrates reliable data storage with SFA services.
It provides the following services:
- Cache written files.
- Pack written files and write packages to tapes.
- Stage packaged files from tape into read cache for the consequent delivery to clients.
Cache data storage is provided by ZFS on Linux service.Enstore SFA components running on SFA appliance are.
- Disk Movers providing delivery and caching of client files in local ZFS storage (write cache).
- Migrators providing packaging of written to cache files and writing them to tapes and staging files from tapes into local ZFS storage (read cache).