SGI® Total Performance 9400 (TP9400) Storage Subsystem
The SGI Total Performance 9400 (TP9400) is a highly scalable RAID
storage subsystem designed for the extended midrange market and
demonstrating performance second to none in the industry. Engineered
for continuous availability, all active components may be configured
redundantly and installed "hot" as customer replaceable or expansion
units.

- RAID Levels 0, 1, 1+0, 3, 5
- Up to 29+1 drives in a LUN
- RAID stripe depth configurable to 16, 32, 64, 128, or 256 per disk
- Global hot spares
- Front-End Performance
- 2 to 4 port mini hubs per controller enclosure
- 400 MB/second per controller
- 800 MB/second with dual controllers
- Drive Interface
- Dual, independent FC-AL interface ports on each drive (100 MB/sec.)
- Failover by each controller to both Fibre Channel loops
- Drives
- Twenty 181.6 GB = 3.6 TB
- Rotational velocity: 7,200 RPM
- Average latency: 4.17 msec.
- Sustained data rate: 25.3 to 47 MB/second
- Average seek: 7.4 msec.