0663 Model L&H
IBM OEM StorageProducts
FEATURES
Industry-standard interface: ANSI/SCSI-2
Integrated controller
1,004 MB formatted capacity (512 & 520 bytes/sector) (models H12 and L12)
Logical block addressing
Implied seeks
SCSI disconnect and reconnect capability
SCSI bus parity
1:1 interleave
High performance (H12 & H11) and low power (L12 & L11) models available
(0,4/4) 8/9 rate encoding
Media data transfer rate: 3 MB/S
SCSI data transfer rate: up to 10 MB/S (synchronous)
256K byte dual-ported data buffer
Read-ahead caching
Multi-segmented data buffer
Scatter/Gather function support
Tagged and Untagged command queuing (selectable)
Automatic sector reallocation (selectable)
Error logging
Variable logical block lengths (256-6000 bytes with exceptions)
Down-loadable SCSI firmware
Automatic retry and data correction in read errors
In-line alternative sector assignment for high performance
Sector reassignment without reformat
Predictive Failure Analysis
PERFORMANCE
Data transfer rate
Buffer to/ 3 MB/S (instantaneous)
from media
Host to buffer up to 5 MB/S (synchronous)
Host from buffer up to 5 MB/S (synchronous)
Rotational Speed 4316 RPM
Average latency 6.95 mS
Seek time Read Write
Single cylinder 0.6 mS 2.5 mS
(all models)
