Manual/User Guide
Page 20
...bus width setting. See subsection 5.3.2 for SCSI-2. 8-bit data bus is available only with the large capacity buffer in the standard 3.5 type fixed disk drive form factor, the IDD is extremely compact. 1.1 Standard Features (1) Compactness Since the SCSI controller circuit is embedded in the IDD. • 8-bit ... number of connectable SCSI devices on the same SCSI bus is varied as follows. • 8-bit SCSI: 8 drives max. (option for NP model) • 16-bit SCSI: 16 drives max. (4) High speed data transfer Such a high data transfer rate on the SCSI bus can be useful with NP model.
...bus width setting. See subsection 5.3.2 for SCSI-2. 8-bit data bus is available only with the large capacity buffer in the standard 3.5 type fixed disk drive form factor, the IDD is extremely compact. 1.1 Standard Features (1) Compactness Since the SCSI controller circuit is embedded in the IDD. • 8-bit ... number of connectable SCSI devices on the same SCSI bus is varied as follows. • 8-bit SCSI: 8 drives max. (option for NP model) • 16-bit SCSI: 16 drives max. (4) High speed data transfer Such a high data transfer rate on the SCSI bus can be useful with NP model.
Manual/User Guide
Page 21
...without concerning the physical structure of the track or cylinder boundaries. This feature provides the suitable usage environment for users. The high speed sequential data access can perform continuous read/write operation when processing data blocks on the SCSI bus by the reordering function. C141-.... (5) Continuous block processing The addressing method of data blocks is surely flushed to the data buffer or empty condition of the disk drive. (7) Cache feature After executing the READ command, the IDD reads automatically and stores (prefetches) the subsequent data blocks into the data...
...without concerning the physical structure of the track or cylinder boundaries. This feature provides the suitable usage environment for users. The high speed sequential data access can perform continuous read/write operation when processing data blocks on the SCSI bus by the reordering function. C141-.... (5) Continuous block processing The addressing method of data blocks is surely flushed to the data buffer or empty condition of the disk drive. (7) Cache feature After executing the READ command, the IDD reads automatically and stores (prefetches) the subsequent data blocks into the data...
Manual/User Guide
Page 22
...software is generally 512 bytes at initializing with a multiple of four within the range of 512 to defective data block. (14) High speed positioning A rotary voice coil motor achieves fast positioning. 1-4 C141-E166 This results in fixed-block length units. CAUTION Error rate increase 1. The... by these error recovery functions of the drive might increase when the format would be modified from errors in SCSI bus or the disk drive using its alternate data block. (12) Programmable data block length Data can be accessed in high speed contiguous data block processing without a revolution ...
...software is generally 512 bytes at initializing with a multiple of four within the range of 512 to defective data block. (14) High speed positioning A rotary voice coil motor achieves fast positioning. 1-4 C141-E166 This results in fixed-block length units. CAUTION Error rate increase 1. The... by these error recovery functions of the drive might increase when the format would be modified from errors in SCSI bus or the disk drive using its alternate data block. (12) Programmable data block length Data can be accessed in high speed contiguous data block processing without a revolution ...
Manual/User Guide
Page 25
...precisely maintain of the actuator arm is started. Figure 1.3 shows the configuration of disks and heads Base Cover MAP3147NC/NP 0 1 2 3 4 5 6 7 MAP3735NC/NP 0 1 2 3 MAP3367NC/NP 0 1 Figure 1.3 Disk/head configuration (3) Spindle motor The disks are not rotating, and automatically float when the rotation is controlled and positioned via feedback of... are positioned on the CCS zone over the disks when the power is off or the spindle motor is controlled by a direct-drive hall-less DC motor. The motor speed is stopped. The heads at least 20,000 contact starts and stops.
...precisely maintain of the actuator arm is started. Figure 1.3 shows the configuration of disks and heads Base Cover MAP3147NC/NP 0 1 2 3 4 5 6 7 MAP3735NC/NP 0 1 2 3 MAP3367NC/NP 0 1 Figure 1.3 Disk/head configuration (3) Spindle motor The disks are not rotating, and automatically float when the rotation is controlled and positioned via feedback of... are positioned on the CCS zone over the disks when the power is off or the spindle motor is controlled by a direct-drive hall-less DC motor. The motor speed is stopped. The heads at least 20,000 contact starts and stops.
Manual/User Guide
Page 26
... noise and to improve data reliability. (7) Controller circuit The controller circuit uses LSIs to increase the reliability and uses a high speed microprocessing unit (MPU) to surrounding temperature changes. (6) Read/write circuit The read/write circuit utilizes a read channel mounted with a... head IC that supports high-speed transmission and an MEEPR4ML (Modified Enhanced Extended Partial Response Class 4 Maximum Likelihood) modulation/demodulation circuit in the vicinity of the ...
... noise and to improve data reliability. (7) Controller circuit The controller circuit uses LSIs to increase the reliability and uses a high speed microprocessing unit (MPU) to surrounding temperature changes. (6) Read/write circuit The read/write circuit utilizes a read channel mounted with a... head IC that supports high-speed transmission and an MEEPR4ML (Modified Enhanced Extended Partial Response Class 4 Maximum Likelihood) modulation/demodulation circuit in the vicinity of the ...
Manual/User Guide
Page 31
C141-E166 2-3 (*1) The formatted capacity can be restricted to the response speed of initiator and by changing the logical block length and using spare sector space. The formatted capacity listed in the table is the time for ...
C141-E166 2-3 (*1) The formatted capacity can be restricted to the response speed of initiator and by changing the logical block length and using spare sector space. The formatted capacity listed in the table is the time for ...
Manual/User Guide
Page 59
...; Hole for mounting screw [Surface Q] • Hole for mounting screw Figure 4.7 Service clearance area (6) External magnetic field The drive should not be installed near the ferromagnetic body like a speaker to achieve a high speed seek. Do not damage or peel off labels. [Surface P'] • Setting terminal (on the DE prevent the DE inside...
...; Hole for mounting screw [Surface Q] • Hole for mounting screw Figure 4.7 Service clearance area (6) External magnetic field The drive should not be installed near the ferromagnetic body like a speaker to achieve a high speed seek. Do not damage or peel off labels. [Surface P'] • Setting terminal (on the DE prevent the DE inside...
Manual/User Guide
Page 124
...example ........4-22 external operator panel connector ....... 4-13, 4-14 F factory maintenance (parts replacement) ........6-8 field maintenance (disk drive replacement) ....6-8 finding possibly faulty part 6-16 format capacity 3-9 format of extended sense data 7-2 format parameter 5-17 FORMAT... G gaps 3-8 general description 1-1 general note 5-1 H hardware function test 6-2 hardware structure 1-6 head 1-7 high speed data transfer 1-2 high speed positioning 1-4 I indicating revision number 6-10 indicating revision number at factory shipment 6-9 initial seek operation check 6-12 ...
...example ........4-22 external operator panel connector ....... 4-13, 4-14 F factory maintenance (parts replacement) ........6-8 field maintenance (disk drive replacement) ....6-8 finding possibly faulty part 6-16 format capacity 3-9 format of extended sense data 7-2 format parameter 5-17 FORMAT... G gaps 3-8 general description 1-1 general note 5-1 H hardware function test 6-2 hardware structure 1-6 head 1-7 high speed data transfer 1-2 high speed positioning 1-4 I indicating revision number 6-10 indicating revision number at factory shipment 6-9 initial seek operation check 6-12 ...