Electromagnetic Susceptibility; Spindle Imbalance; Disk Errors; Table 4-9 Error Rates - Quantum FIREBALL PLUS AS 10.2 Product Manual

4.12 4.12 4.12 4.12

ELECTROMAGNETIC SUSCEPTIBILITY

ELECTROMAGNETIC SUSCEPTIBILITY ELECTROMAGNETIC SUSCEPTIBILITY ELECTROMAGNETIC SUSCEPTIBILITY
E Field: 3Volts/meter at <100 MHz.
B Field: As per standard EN61004-8
4.13 4.13 4.13 4.13

SPINDLE IMBALANCE

SPINDLE IMBALANCE SPINDLE IMBALANCE SPINDLE IMBALANCE
0.5 g-mm maximum
(This is approximately equivalent to 0.04 G emitted vibrations)
4.14 4.14

DISK ERRORS

DISK ERRORS
4.14 4.14 DISK ERRORS DISK ERRORS
Table 4-9 provides the error rates for the Quantum Fireball Plus AS hard disk
drives.
ERROR TYPE ERROR TYPE
ERROR TYPE ERROR TYPE
Retry recovered read errors
Unrecovered read errors
3
Seek errors
1. Retry recovered read errors are errors which require retries for data correction.
Errors corrected by ECC on-the-fly are not considered recovered read errors.
Read on arrival is disabled to meet this specification. Errors corrected by the
thermal asperity correction are not considered recovered read errors.
2. Unrecovered read errors are errors that are not correctable using ECC or
retries. The drive terminates retry reads either when a repeating error pattern
occurs, or after the programmed limit for unsuccessful retries and the
application of quadruple-burst error correction.
3. Seek errors occur when the actuator fails to reach (or remain) over the
requested cylinder and the drive requires the execution of a full recalibration
routine to locate the requested cylinder.
Note:

Table 4-9 Error Rates

Table 4-9 Table 4-9 Table 4-9
1
2
Error rates are for worst case temperature and voltage.
Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT
MAXIMUM NUMBER OF ERRORS MAXIMUM NUMBER OF ERRORS
MAXIMUM NUMBER OF ERRORS MAXIMUM NUMBER OF ERRORS
9
1 event per 10 bits read
14
1 event per 10 bits read
6
1 error per 10 seeks
Specifications
4-11