Fujitsu MAT3147NC/NP, MAT3300NC/NP, MAT3073NC/NP manual

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(1)Disks

The disks have an outer diameter of 84 mm (3.3 inch) and an inner diameter of 25 mm (0.98 inch). The disks are good for at least 50,000 contact starts and stops.

(2)Heads

The MR (Magnet - Resistive) of the CSS (contact start/stop) type heads are in contact with the disks when the disks are not rotating, and automatically float when the rotation is started.

(3)Spindle motor

The disks are rotated by a direct-drive hall-less DC motor. The motor speed is controlled by a feedback circuit using the counter electromotive current to precisely maintain of the specified speed.

(4)Actuator

The actuator, which uses a rotary voice coil motor (VCM), consumes little power and generates little heat. The heads at the end of the actuator arm is controlled and positioned via feedback of servo information in the data.

The heads are positioned on the CCS zone over the disks when the power is off or the spindle motor is stopped.

(5)Air circulation (recirculation filter, breather filter)

The disk enclosure (DE) configures a clean room to keep out particle and other contaminants. The DE has a closed-loop air recirculation system. Using the movement of the rotating disks, air is continuously cycled through a filter. This filter will trap any particle floating inside the enclosure and keep the air inside the DE contaminant free. To prevent negative pressure in the vicinity of the spindle when the disks begin rotating, a breather filter is attached. The breather filter also equalizes the internal air pressure with the atmospheric pressure due 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 order to prevent errors being triggered by external 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 increase the performance of the SCSI controller.

C141-E201

1-7

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Contents C141-E201-01EN For Safe Operation Revision Record Related Standards General Description PrefaceConventions for Alert Messages Important Alert Messages Important Alert ItemsTask Alert message Mounting Installation Manual Organization Product Maintenance This page is intentionally left blank Contents Diagnostics and Maintenance IN-1 Appendix B Connector Signal AllocationFigures Page Tables General Description Standard Features Hardware Structure System ConfigurationStandard Features C141-E201 Page Page NC model drives outer view Page System configuration LUN Scsi IDThis page is intentionally left blank Model names and order numbers SpecificationsHardware Specifications Scsi Function Specifications Hardware Specifications Model name and order numberScsi Function specificationsMAT3300NC/NP MAT3147NC/NP MAT3073NC/NP 32/34 MeeprmlPage Iops Environmental specificationsEnvironmental/power requirements MTBF= Error rateReliability Temperature is 60C or less Shows the Scsi functions provided with the IDD This page is intentionally left blank Data Space Cylinder configurationData Format Data Space Logical Data Block Addressing Defect ManagementSA0 Alternate spare area Spare area in cell Track format Sector format Track skew/head skewPage MAT3300NC/NP Format capacityPage Alternate block allocation Defect Management Defect listPage Alternate block allocation by Format Unit command Alternate block allocation by Reassign Blocks command Format Unit Write Write ExtendC141-E201 This page is intentionally left blank Mounting Requirements External dimensions Installation RequirementsNC external dimensions NP external dimensions IDD orientations MountingHoles for MPU Surface temperature check pointHDC Service clearance area Spin-up current waveform +12 VDC 10 Power on/off sequence Delay time of spindle motor starting 13 NC connectors location 14 SCA2 type 16-bit Scsi connector 15 NP connectors and terminals location 2 68 pin connector type 16-bit Scsi model NP model16 68 pin type 16-bit Scsi interface connector GND EsidLED Open20 16-bit Scsi ID external input IDD 21 Output signal for external LED 22 Scsi cables connection Recommended components for connection Cable connector requirementsLED ID0 ID1 ID2 ID3 External operator panel on NP model drives onlyGND LED C141-E201 Installation Page Connections Scsi bus connections 1 Pin Scsi ID #15 CN2 setting terminal on NP models only Scsi ID settingScsi Motor start mode setting Each mode settingSetting Scsi terminator power supply NP model Setting the bus width of the Scsi interface NP model Write protect setting NP modelSetting of the Scsi interface operation mode NP model SCSI-3 Mode settingsDefault mode settings by Change Definition command Scsi ID CN2 Setting check list NP model onlyMounting procedures Mounting Drives Check before mountingConnecting Cables Remark Checking Scsi connection Checking the Scsi connection a Checking the Scsi connection B Formatting Page Setting parameters Arre AwreArre Awre PER Xxxx DiscXffff Read/write This page is intentionally left blank Self-diagnostic functions Diagnostics and MaintenanceDiagnostics Self-diagnostics Page Operation of self-diagnostics Test programs Maintenance Information Precautions Maintenance requirements C141-E201 Maintenance levels Revision label Revision numbersTests Indicating revision numbers Tools and test equipmentTest flowchart Operation test Diagnostic testOperation Check Initial seek operation check Troubleshooting with disk drive replacement in the field System-level field troubleshooting Disk drive troubleshooting Troubleshooting at the repair siteFinding possibly faulty parts Troubleshooting with parts replacement in the factoryError Analysis Information Collection Sense data Error AnalysisError Analysis Information Collection Sense Data Analysis Sksv ILILSB Definition of sense data Sense data 3-0C-03, 4-40-xx, and 4-C4-xx Sense data 1-1x-xx, 3-1x-xx and E-1D-00 Disk read errorSetting Terminals on NP model only Appendix a Setting TerminalsScsi ID Appendix B Connector Signal Allocation Diffsns GND ATN BSY ACK RST MSG SEL REQ DBP1Pcrca GND Diffsns Termpwr This page is intentionally left blank CN1 IndexBcrc PAD Mode SELECT/MODE SelectECC Programmable multi-segment data buffer This page is intentionally left blank Comment Form This page is intentionally left blankw
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