User manual SEAGATE ATLAS 10K III

[. . . ] /CZVQT #VNCU - +++ 2TQ. WEV /CPWCN /CZVQT #VNCU - +++ 2TQ. WEV /CPWCN GP W, © 2002 Maxtor Corporation. Printed in U. S. A. This publication could include technical inaccuracies or typographical errors. Changes are periodically made to the information herein ­ which will be incorporated in revised editions of the publication. Maxtor may make changes or improvements in the product(s) described in this publication at any time and without notice. countries. [. . . ] When this field is set = 1, the disk drive's FAULT led illuminates. When set = 0, the disk drive runs calibration and diagnostic procedures periodically. When set = 1, calibrations occur only as a result of a REZERO UNIT command. Note that this bit is not saved by MODE SELECT when the value of the SP field is 1. ManCal 0 DPER 1 Disable Post Error Recovery. When set = 1, disables Post Error Recovery (refer to Read-Write Error Recovery Page, Section 5. 17. 3. 3). Force AxRE where x = W (WRITE) or R (READ) When set = 0, the settings of AWRE/ARRE are as set in Mode Page 01h (Read-Write Error Recovery Page). When set = 1, Automatic WRITEs or READs are forced, even if the related fields of Mode Page 01h are = 0. If set = 1, format certification is disabled regardless of the value of the DCRT bit in the FORMAT Command's parameter header. When = 0, drive places AIP information on the upper byte of data during asynchronous information phases, regardless of the setting of "AIP Check Enabled. " When set = 1, AIP generation is disabled. When = 1, the drive is able to validate incoming AIP information on upper byte of data during asynchronous information phases and can generate errors on bad information. FAxRE 1 QDER 0 DFC Read Ahead Disable Enable Double Ack Filter ESPDis DFRCSU AIP Gen Disable 0 0 0 0 0 0 AIP Check Enabled 0 NOTE This bit is maintained uniquely for each unique initiator ID that senses or selects it. All initiators that want to participate in AIP must set this bit for themselves. When this field = 0, "total bytes read/written" field on Log Page 02h and 03h reported as number of . When = 1, field is reported as number of . AIP Capable LogPgB 5-70 Maxtor Atlas 10K III P QK V RK T E U G & UGV[D UME QND VN W C H G & FNGK( SCSI Description Disable Auto Move Heads ESL IMR IOE ArcsOn DlyESP 0 0 0 1 0 0 When set to a 0, Move heads is on meaning that if there is no I/O activity for 30 seconds the heads will move on there own. When set = 1, saving and loading of non-SMART pages to/from the MCS area is enabled. For ESP (anticipatory-READ) commands only, when set = 1 the delay from data phase to the first REQ of data is increased from about 2 µs to about 16 µs. When this bit = 0, the disk drive may negotiate for a transfer period less than 19h. When this bit = 1, SDTR transfer period is limited to 19h minimum. Force10 DEWG Enable Comm Timeout 0 1 0 Disable ESP WRITE Guess. The value of this field specifies the number of times that a host request can be skipped over (such as when performing queuing optimizations). Some host operating systems support tagged command queuing which allows for multiple requests to be resident in the disk drive simultaneously. The disk drive can then re-order execution of the requests to improve throughput. For systems in which minimum completion time of a request is more important than throughput, MaxSkip can be reduced. Proprietary Information This field specifies the minimum number of blocks ready before starting data transfer. [. . . ] SPUTTER ­ A special method of coating the disk that results in a hard, smooth surface capable of storing data at a high density. STEPPER ­ A type of motor that moves in discrete steps with each electrical pulse. Stepper were originally the most common type of actuator engine, since they can be geared to advance a read/write head one track per step. However, they are not as fast, reliable, or durable as the voice coil actuators found in Maxtor disk drives. [. . . ]