Command data structure, Error data structure

Interface

•

Command data structure

Indicates the command received when an error occurs.

Error data structure

Indicates the status register when an error occurs.

Total number of drive errors

Indicates total number of errors registered in the error log.

Check sum

Two's complementary for the lowest-order 1 byte that is obtained by adding 1 byte after another for as many as 511 bytes beginning from the top of the structure.

•Status

Bits 0 to 3: Indicates the drive status when received error commands according to the following table.

Bits 4 to 7: Vendor unique

Status	Meaning

0	Unclear status

1	Sleep status

2	Standby status

3	Active status (BSY bit = 0)

4	Off-line data collection being executed

5 to F	Reserved

Table 5.17 Data format of SMART Comprehensive Error Log

Byte	First sector	Next sector

00h	SMART Error Logging 01h	Reserved

01h	Index Pointer Latest Error Data Structure.	Reserved

02h...5Bh	1st Error Log Data Structure	Data Structure 5n + 1

5Ch...B5h	2nd Error Log Data Structure	Data Structure 5n + 2

B6h...10Fh	3rd Error Log Data Structure	Data Structure 5n + 3

110h...169h	4th Error Log Data Structure	Data Structure 5n + 4

16Ah...1C3h	5th Error Log Data Structure	Data Structure 5n + 5

1C4h...1C5h	Total Error Count	Reserved

1C6h...1FEh	Reserved	Reserved

1FFh	Checksum	Checksum

5-54

C141-E221

MHV2060AS, MHV2080AS, MHV2040AS specifications

Fujitsu's MHV series of hard disk drives, specifically the MHV2040AS, MHV2080AS, and MHV2060AS models, are designed to deliver efficient performance and reliability for a range of applications, particularly in desktop computing and entry-level servers. Each of these drives adheres to the Serial ATA (SATA) interface, which ensures compatibility across a wide range of systems and is known for its cost-effectiveness and simplicity.

The MHV2040AS features a storage capacity of 40GB, making it suitable for basic computing tasks including document editing, web browsing, and media playback. The MHV2060AS steps it up with a 60GB capacity, allowing for increased data storage needs while still maintaining a high level of performance. The largest of the trio, the MHV2080AS, offers an impressive 80GB of space, positioning it well for users who require additional room for applications, games, and multimedia files.

All drives in this series are equipped with a rotational speed of 5400 RPM, which strikes a balance between speed and power consumption. This speed is adequate for everyday tasks and allows for quick boot times and file access, making them ideal for home and small office environments. Additionally, the drives feature an average latency of 5.5 milliseconds, contributing to their overall performance in retrieving data.

In terms of technology, the MHV series employs a fluid dynamic bearing (FDB) motor, which not only enhances reliability but also reduces noise levels during operation. The FDB technology helps improve the longevity of the drives by minimizing wear on mechanical components. This characteristic is particularly important for users seeking quieter drives, especially in work environments that require minimal disruption.

The drives also incorporate advanced power management features that significantly reduce power consumption, making them an environmentally friendly choice for users mindful of their carbon footprint. These drives are equipped with energy-saving modes that optimize their performance when not in full use, ensuring lower operational costs and longer lifespan.

Overall, the Fujitsu MHV2040AS, MHV2080AS, and MHV2060AS hard drives provide a solid solution for users looking for dependable storage with a range of capacities to fit their needs. Their performance, combined with noise reduction technologies and energy efficiency, makes them a notable choice for various computing environments, from single-user desktops to small business applications.

Fujitsu MHV2060AS Command data structure, Error data structure, Total number of drive errors

Models: MHV2060AS MHV2080AS MHV2040AS