Fujitsu MAP3147FC Operation Check Initial seek operation check, Operation test, Diagnostic test

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Diagnostics and Maintenance

6.3Operation Check

6.3.1Initial seek operation check

If an error is detected during initialization by the initial seek operation check routine at power-on, the IDD sends the Fault LED Out signal to the interface connector. The spindle motor of the disk drive then stops, and the disk drive is unusable.

For an explanation of the operation check before the initial seek, refer to the Section 5.5.

6.3.2Operation test

While the host computer is processing data, the IDD monitors disk drive operation including data processing, command processing, and seek operations. If the IDD detects an error, the IDD posts the error to the INIT. The INIT then posts the error to the user.

The user may detect an intermittent or nonfatal error such as abnormal noise, abnormal odor, or very slow operation.

An error posted in an operation test must be investigated. Replace the disk drive to see whether the error was caused by the disk drive.

Often, errors posted in an operation test may be caused by the host system. Possible causes include insufficient power capacity, loose cable connection, insufficient timing or insufficient mechanical play, and problems related to other systems.

If an operation error is detected by the error detection circuit of the disk drive, an interrupt occurs. The interrupt is posted to the MCU on the PCA. The MCU stops the currently processed command, and causes the CHECK CONDITION status to post the error to the INIT.

When receiving the CHECK CONDITION status, the INIT issues a REQUEST SENSE command to collect detailed information about the error. The INIT then issues a REZERO UNIT command to return the read/write head to track 00. In normal processing, the IDD itself or INIT determines how to handle the error (processing retry or stop).

To analyze the error posted in the operation test, reconstruct the conditions in which the error occurred. Then, start troubleshooting the whole host system by replacing the disk drive.

6.3.3Diagnostic test

The diagnostic test is executed to find a faulty subassembly in a faulty disk drive, or to check disk drive performance. This test is usually a combination of specific disk drive functions or group of functions. This test may be executed using a different host computers or test equipment and away from the environment where the error first occurred.

To analyze the error posted in the diagnostic test, reconstruct the conditions in which the error occurred. Then, look for a possibly faulty subassembly or part of the disk drive.

The procedures to be used in this test depend largely on the type of test equipment used, and are not covered by this manual.

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Contents MAP3147FC MAP3735FC Disk Drives PRODUCT/MAINTENANCE Manual For Safe Operation Preface Overview of ManualPreface Conventions for Alert MessagesC141-E163 Iii This page is intentionally left blank Important Alert Items Important Alert MessagesImportant Alert Items C141-E163 Vii This page is intentionally left blank Maintenance Manual ProductThis page is intentionally left blank Referenced Standards This page is intentionally left blank Contents Installation ContentsAppendix a Connector Signal Allocation Illustrations Tables This page is intentionally left blank Standard Features Hardware Structure System Configuration General DescriptionStandard Features General DescriptionStandard Features General Description Hardware Structure FC model drives outer viewDisk/head configuration MAP3147FC MAP3735FCSystem Configuration Example of FC-AL system configurationGeneral Description Model names and order numbers Hardware SpecificationsHardware Specifications Model name and order number MAP3147FC32/34 Meeprml SpecificationsFunction specifications FC-ALHardware Specifications Environmental specifications Environmental/power requirementsIops Error rate ReliabilityMTBF= Hardware Specifications This page is intentionally left blank Cylinder configuration Data Space Logical Data Block Addressing Defect ManagementData Space Data Format SAS69Data Space Zone layout and track capacityAlternate spare area Data Space Track formatMsec Servo frame = 241 zone 0 ~ 408 zone Track skew/head skew Sector formatData Format Logical Data Block Addressing Format capacityData Format Defect Management Defect Management Defect listAlternate block allocation Alternate block allocation by Format Unit command Alternate block allocation by Reassign Blocks command Write Write Extend Defect Management This page is intentionally left blank Installation Requirements Mounting Requirements External dimensionsInstallation Requirements Mounting Requirements MountingMounting frame structure Surface temperature check point HDCMPU Service clearance area Power Supply Requirements Current waveform +12 VDCAC noise filter recommended Connection Requirements Connector Connection Requirements10 SCA2 type connector Installation Installation Mode settings SettingSetting Loop ID setting Motor start modeMounting Drives Mounting procedures Dismounting Drives Installation Checking connection Checking the IDD connection a Checking the IDD connection B Formatting C141-E163 Setting parameters Awre ArreArre Awre PER Disc XffffXxxx Read/write Diagnostics Self-diagnostics Self-diagnostic functionsDiagnostics and Maintenance Diagnostics Test programs Maintenance Information Maintenance Information PrecautionsMaintenance requirements Maintenance Information Maintenance levels Revision numbers Revision label exampleIndicating revision numbers Tools and test equipment TestsTest flowchart Diagnostic test Operation Check Initial seek operation checkOperation test Troubleshooting Procedures Troubleshooting with disk drive replacement in the fieldSystem-level field troubleshooting Troubleshooting at the repair site Disk drive troubleshootingTroubleshooting with parts replacement in the factory Finding possibly faulty partsError Analysis Information Collection Sense Data Analysis Error Analysis Information Collection Sense dataSense key, sense code, and subsense code LSB Error AnalysisILI SksvSense Data Analysis Definition of sense dataSense data 1-1x-xx, 3-1x-xx and E-1D-00 Disk read error Sense data 3-0C-03, 4-40-xx, 4-44-xx, and 4-C4-xxAppendix a Connector Signal Allocation Interface FC-SCA Connector Signal AllocationConnector Signal Allocation Glossary Glossary Target TargAcronyms and Abbreviations Acronyms and Abbreviations RSVBcrc ECCMtbf Mttr Mode SELECT/MODEIndex PADC141-E163 IN-3 This page is intentionally left blank Fujitsu Canada INC This page is intentionally left blank READER’S Comment Form This page is intentionally left blank

MAP3735FC, MAP3147FC specifications

Fujitsu has been a prominent player in the hard disk drive market, with its MAP3147FC and MAP3735FC models standing out in terms of performance and reliability. These drives are engineered to meet the growing demands of enterprise applications, providing robust solutions for data storage in critical environments.

The Fujitsu MAP3147FC, with a capacity of 147 GB, is optimized for high-speed data access and storage efficiency. This 3.5-inch SCSI drive operates at a rotational speed of 15,000 RPM, ensuring rapid data retrieval and minimized latency, making it ideal for applications requiring quick transaction processing. It features a 4 Gbps Fibre Channel interface, which enhances connectivity and system integration, promoting seamless communication between devices in storage area networks.

On the other hand, the MAP3735FC model offers a higher capacity of 300 GB. It shares similar specifications with its counterpart, including the 15,000 RPM speed, which guarantees top-notch performance for mission-critical applications. The MAP3735FC, like the MAP3147FC, incorporates advanced technologies such as Command Queuing, which optimizes the execution of multiple read and write commands in a queue. This feature is particularly beneficial in environments with high I/O demands, improving overall system throughput and efficiency.

Both drives utilize sophisticated error correction techniques, ensuring data integrity and reliability. They are equipped with features like S.M.A.R.T. (Self-Monitoring, Analysis, and Reporting Technology), which continuously monitors the health of the drives and helps predict potential failures, allowing for proactive maintenance and data protection.

In terms of physical characteristics, both models are designed to withstand the rigors of continuous operation. They are built with a rugged casing to protect against vibration and shock, making them suitable for use in enterprise-level servers and storage systems. Their design also allows for efficient heat dissipation, which is critical for maintaining optimal performance during extended use.

In summary, Fujitsu's MAP3147FC and MAP3735FC hard drives embody a combination of high speed, reliability, and advanced features tailored for enterprise environments. Their robust performance, large storage capacities, and reliable error correction technologies make them an excellent choice for businesses looking to optimize their data storage solutions and ensure seamless operation in demanding applications. With Fujitsu's commitment to quality and innovation, these models continue to meet the evolving needs of the data storage industry.
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