HP StorageWorks 30ux Standalone UDO Drive User's Guide (AA961-90901, May 2004)

Specifications

29HP 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

bytes read

Seek error rates ■ Recoverable: < 1 per 100,000

seeks

■ Hard error seeks: <1 per 10,000

seeks