Delivery
Playback Server
- Photo
- Caches the most recently used sound files on hard disk for streaming delivery to
client workstations
- IBM RS/6000 59H system
- 120 GB of SCSI hard disk storage
- Acts as a cache for the most recently used audio files
- IBM VideoCharger software for multimedia streaming
- Tiger Shark file system provides:
- striping of multimedia files across multiple drives
- replication of files across multiple drives and servers
- scheduling of real-time reads and writes to guarantee quality of service
- RTP (Real Time Protocol) for network delivery
- RTSP (Real Time Streaming Protocol) for control (play, pause, stop, etc.)
- Also available for NT servers
- Currently supports up to 130 simultaneous client sessions
- Delivery currently limited to client workstations within the Simon building
Archive Server
- Stores compressed sound files on tape cartridges in an automated tape library
- IBM 3494 Tape Library Dataserver
- Two IBM 3590 Magstar tape drives
- IBM RS/6000 J30 SMP server running IBM's ADSTAR Distributed Storage
Manager (ADSM) software.
- 200 3590 tape cartridges (each holding 10 GB of data)
Linkage Between Servers
- Custom software developed at IU
- VideoCharger now includes a system for interfacing with ADSM