User manual MAXTOR ST9655AG

[. . . ] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ST9655 Family . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ST9655AG, ST9550AG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ST9385AG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ATA Interface Drives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] Some older drive diagnostic programs test ECC features by creating small data errors and then checking to see if they are reported. Such tests, when run on an ST9655 family drive, may incorrectly report an ECC detection failure because the drive hardware corrects the data automatically, avoiding the error rather than reporting it. Such a report does not indicate a drive malfunction. ST9655 Family Product Manual, Rev. A 13 2. 0 Drive mounting and configuration 2. 1 Handling and static-discharge precautions After unpacking, and prior to installation, the drive may be exposed to potential handling and ESD hazards. Observe standard static-discharge precautions. Handle the drive only by the sides of the head/disc assembly. Avoid contact with the printed circuit board, all electronic components and the interface connector. Always rest the drive on a padded antistatic surface until you mount it in the host system. 2. 2 Mounting the ST9655 family drives You can mount ST9655 family drives in any orientation. Allow a minimum clearance of 0. 030 inches (0. 76 mm) around the entire perimeter of the drive for cooling airflow. Figure 3 on page 14 provides mounting dimensions for the ST9655 family drives. These drives conform to the industry-standard MCC directmounting specifications and require MCC-compatible connectors in direct-mounting applications. To avoid damaging the drive: · Use M3X0. 5 metric mounting screws only. · Do not insert mounting screws more than 0. 150 inches (3. 81 mm) into the mounting holes. · Do not overtighten the screws (maximum torque: 3 inch-lb). 14 ST9655 Family Product Manual, Rev. A Dimensions are in inches (mm) 0. 747 ± 0. 007 (18. 97 ± 0. 18) 4. 010 (101. 85) max. (head/disc assembly) 0. 118 ± 0. 010 (3. 00 ± 0. 25) 0. 000 4X 3 mm × 0. 5 mm × 0. 15 in. full thread 1. 227 ± 0. 020 (2 each side) (31. 17 ± 0. 51) 4. 020 (102. 11) max (head/disc assembly to tip of pins) 1. 500 ± 0. 010 (38. 10 ± 0. 25) 1. 375 ± 0. 015 (34. 93 ± 0. 38) 0. 152 ± 0. 005 (3. 86 ± 0. 13) 0. 000 0. 155 ± 0. 020 (3. 94 ± 0. 51) 0. 000 0. 239 ± 0. 035 (6. 07 ± 0. 89) 2. 760 (70. 10) max 2. 430 ± 0. 010 (61. 72 ± 0. 25) 4X 3 mm × 0. 5 mm × 0. 15 in. full thread Pin 20 removed for keying 0. 079 (2. 00) Pin 1 0. 157 ± 0. 015 (3. 99 ± 0. 38) 0. 079 (2. 00) 1. 659 (42. 14) Figure 3. Mounting dimensions for the ST9655 family drives ST9655 Family Product Manual, Rev. A 15 2. 3 Master/slave configuration A master/slave relationship must be established between multiple drives attached to a single AT bus. You can configure a drive to become a master or slave by setting the master/slave jumpers, as described below and shown in Figure 4 on page 16. Alternatively, you can configure an ST9655 family drive as a master or slave using the cable select option. [. . . ] When the drive receives a Rest command, it captures the state of the I/O registers as they existed upon completion of the previous command, then enters Rest mode. After entering Rest mode, the drive rejects any command other than a Read Drive State command with an aborted command error. The Rest mode can be cleared only by power off or reset. After issuing the Rest command, the host should poll the Alternate Status register to monitor for completion status without clearing the interrupt flag that may have been set for an application program. 28 ST9655 Family Product Manual, Rev. [. . . ]