HP StorageWorks Ultra Density Optical Storage - Manual (Page 29)

Specifications
29 HP StorageWorks 30ux Standalone UDO Drive User’s Guide
Drive specifications
Table 5: Drive specifications
Characteristic Specification
Disk capacity 30 GB
Average seek 35 msec
Rotational speed
■
2100 RPM +/- 0.5% WORM
■
1950 RPM +/- 0.5% Rewritable
Data transfer rate (software and system
dependent)
■
Reads (max. sustained):
— WORM, 7.96 MB/sec
— Rewritable, 7.99 MB/sec
■
Writes (max. sustained):
— WORM, 3.98 MB/sec
— Rewritable, 3.99 MB/sec
■
Burst (synchronous): 40 MG/sec
■
Burst (asynchronous, data in):
6.7 MB/sec
■
Burst (asynchronous, data out):
40 MB/sec
Disk load time 5 sec typical/
Disk unload time 3 sec typical
Read/write compatibility Read/write UDO 1st generation format
only
Interface type SCSI LVD (68 pin)
MTBF 100,000 hours
Read/write error rate (uncorrectable) < 1 per 10 20 bytes read
Seek error rates
■
Recoverable: < 1 per 100,000
seeks
■
Hard error seeks: <1 per 10,000
seeks