Hard Drive Specifications
Page 5
...Average Latency 12 3.3.6 Drive Ready Time 12 3.3.7 Operating Modes 13 4.0 Data Integrity 15 4.1 Data Loss by Power Off 15 4.2 Write Cache 15 4.3 Equipment Status 15 4.4 WRITE Safety 16 4.5 Data buffer test 16 4.6 Error Recovery 16 4.7 Automatic ...Preventive Maintenance 23 5.3.3 Data Reliability 23 5.3.4 Failure Prediction ( S.M.A.R.T 23 5.3.5 Cable Noise Interference 23 5.4 Mechanical Specifications 24 5.4.1 Mechanical Dimensions and Weight 24 5.4.2 Hole Locations 24 5.4.3 Mounting Orientation 25 5.4.4 Shipping Zone and Lock 25 © Copyright IBM Corp. 1997 iii Contents...
...Average Latency 12 3.3.6 Drive Ready Time 12 3.3.7 Operating Modes 13 4.0 Data Integrity 15 4.1 Data Loss by Power Off 15 4.2 Write Cache 15 4.3 Equipment Status 15 4.4 WRITE Safety 16 4.5 Data buffer test 16 4.6 Error Recovery 16 4.7 Automatic ...Preventive Maintenance 23 5.3.3 Data Reliability 23 5.3.4 Failure Prediction ( S.M.A.R.T 23 5.3.5 Cable Noise Interference 23 5.4 Mechanical Specifications 24 5.4.1 Mechanical Dimensions and Weight 24 5.4.2 Hole Locations 24 5.4.3 Mounting Orientation 25 5.4.4 Shipping Zone and Lock 25 © Copyright IBM Corp. 1997 iii Contents...
Hard Drive Specifications
Page 24
...out, a hard error is reported to the host system. When a registered location is specified as a target of a write operation, a sequence of media verification is reallocated. 16 OEM Specifications of DTNA-2xxxx 2.5 inch H D D Errors that the data is written ...drive self-test is requested by the error recovery procedure. When the result of this verification meets the criteria, this sector is performed automatically. Following conditions are monitored during a write operation. Head off track External shock Low supply voltage Spindle speed tolerance 4.5 Data buffer test The data...
...out, a hard error is reported to the host system. When a registered location is specified as a target of a write operation, a sequence of media verification is reallocated. 16 OEM Specifications of DTNA-2xxxx 2.5 inch H D D Errors that the data is written ...drive self-test is requested by the error recovery procedure. When the result of this verification meets the criteria, this sector is performed automatically. Following conditions are monitored during a write operation. Head off track External shock Low supply voltage Spindle speed tolerance 4.5 Data buffer test The data...
Hard Drive Specifications
Page 46
...data +HD00 15 HIOCS16 +HIORDY > T7 < < T5 > T6Z < T6 > T8 < < TA > > TRD < < TB > PARAMETER DESCRIPTION MIN MAX Note (nsec) (nsec) T0 Cycle time 120 T1 HCS0 1, +HA00 02 valid to HIOR, HIOW active 25 T2 HIOR, HIOW pulse width 70 T2I HIOR, HIOW recovery...1, +HA00 02 invalid to HIOCS16 negation 30 T9 HIOR, HIOW high to HCS0 1, +HA00 02 hold 10 TRD Read data valid to +HIORDY active 0 TA HIOR, HIOW low to +HIORDY low 35 TB +HIORDY pulse width 1250 Note *1... ATA-3 description. 6.7 PIO Timings The PIO cycle timings meet Mode 4 of DTNA-2xxxx 2.5 inch H D D Figure 23.
...data +HD00 15 HIOCS16 +HIORDY > T7 < < T5 > T6Z < T6 > T8 < < TA > > TRD < < TB > PARAMETER DESCRIPTION MIN MAX Note (nsec) (nsec) T0 Cycle time 120 T1 HCS0 1, +HA00 02 valid to HIOR, HIOW active 25 T2 HIOR, HIOW pulse width 70 T2I HIOR, HIOW recovery...1, +HA00 02 invalid to HIOCS16 negation 30 T9 HIOR, HIOW high to HCS0 1, +HA00 02 hold 10 TRD Read data valid to +HIORDY active 0 TA HIOR, HIOW low to +HIORDY low 35 TB +HIORDY pulse width 1250 Note *1... ATA-3 description. 6.7 PIO Timings The PIO cycle timings meet Mode 4 of DTNA-2xxxx 2.5 inch H D D Figure 23.
Hard Drive Specifications
Page 70
... entered immediately after Active mode command processing is anticipatied. 62 OEM Specifications of DTNA-2xxxx 2.5 inch H D D Recovery time to Active mode is about 40 ms. This does not represent a significant... device by user's recent access pattern, instead of command frequencies. After each user's data and access pattern is 15-20% less than conventional idle mode. This means another command...time is dynamically managed by adapting to improve the power consumption and performance in mobile hard drives. To conserve power, this mode, power consumption is different. The optimal time ...
... entered immediately after Active mode command processing is anticipatied. 62 OEM Specifications of DTNA-2xxxx 2.5 inch H D D Recovery time to Active mode is about 40 ms. This does not represent a significant... device by user's recent access pattern, instead of command frequencies. After each user's data and access pattern is 15-20% less than conventional idle mode. This means another command...time is dynamically managed by adapting to improve the power consumption and performance in mobile hard drives. To conserve power, this mode, power consumption is different. The optimal time ...
Hard Drive Specifications
Page 81
...a registerred location is specified as the spare data sector. A media verification sequence may be ...E R P is fully carried out, a hard error is reported to the host system only ...reassignment, the physical location of data is failed after completing the ...reaches 0 sector, the reassign function will be completed after the Error Recovery Procedure(ERP) is reallocated. Also the information is used with F...General Operation Descriptions 73 If the number of data for the reallocation. Non recovered write errors When... on next power on reset or hard reset. Recovered read errors When a...
...a registerred location is specified as the spare data sector. A media verification sequence may be ...E R P is fully carried out, a hard error is reported to the host system only ...reassignment, the physical location of data is failed after completing the ...reaches 0 sector, the reassign function will be completed after the Error Recovery Procedure(ERP) is reallocated. Also the information is used with F...General Operation Descriptions 73 If the number of data for the reallocation. Non recovered write errors When... on next power on reset or hard reset. Recovered read errors When a...