Selective self-test log data structure | Fujitsu MHW2060AC specification

Interface

Table 5.19 Selective self-test log data structure

Offset			Description	Initial
00h, 01h		Data Structure Revision Number		01h, 00h
02h...	09h	Test Span 1	Starting LBA	00h...	00h
0Ah...	11h		Ending LBA	00h...	00h

12h...	19h	Test Span 2	Starting LBA	00h...	00h
1Ah...	21h		Ending LBA	00h...	00h

22h...	29h	Test Span 3	Starting LBA	00h...	00h
2Ah...	31h		Ending LBA	00h...	00h

32h...	39h	Test Span 4	Starting LBA	00h...	00h
3Ah...	41h		Ending LBA	00h...	00h

42h...	49h	Test Span 5	Starting LBA	00h...	00h
4Ah...	51h		Ending LBA	00h...	00h

52h...	151h	Reserved		00h...	00h
152h...	1EBh	Vender Unique		00h...	00h
1Ech...	1F3h	Current LBA under test		00h...	00h
1F4h...	1F5h	Current Span under test		00h...	00h
1F6h...	1F7h	Feature Flags		00h...	00h
1F8h			Offline Execution Flag	00h
1F9h		Vender Unique	Selective Offline Scan Number	00h
1FAh, 1FBh			Reserved	00h, 00h
1FCh, 1FDh		Selective Self-test pending time [min]		00h, 00h
1FEh, 1FFh		Check sum		00h, FFh

•

Test span

Selective self-test log provides for the definition of up to five test spans. If the starting and ending LBA values for a test span are both zero, a test span is not defined and not tested.

Current LBA under test

As the self-test progress, the device shall modify this value to contain the LBA currently being tested.

Current span under test

As the self-test progress, the device shall modify this value to contain the test span number currently being tested.

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C141-E258

MHW2060AC, MHW2040AC specifications

The Fujitsu MHW2040AC and MHW2060AC are notable hard disk drives (HDDs) that have been widely used in various computing applications, especially in laptops and compact devices. These models are part of Fujitsu's commitment to providing reliable storage solutions that meet the demands of modern computing.

The MHW2040AC offers a storage capacity of 40 GB, while the MHW2060AC provides a slightly larger capacity at 60 GB. This range of storage makes both models suitable for users looking for dependable space for documents, multimedia files, and software applications. Both drives utilize a 2.5-inch form factor, ideal for mobile computing, as they are lightweight and designed to fit into space-constrained environments.

In terms of performance, both drives operate at a spindle speed of 5400 RPM. This speed strikes a balance between power consumption and performance, making these drives an efficient choice for everyday tasks, such as web browsing and office applications. The drives are equipped with an interface of Ultra ATA/133, which enables faster data transfer rates compared to older models, thereby enhancing overall system responsiveness.

The MHW2040AC and MHW2060AC also incorporate several advanced technologies to bolster their performance and reliability. One such feature is the use of a fluid dynamic bearing (FDB) for the spindle motor, which minimizes noise and vibration, thus improving the overall user experience. Additionally, both drives come with error correction technology that helps maintain data integrity by detecting and correcting errors during read and write operations.

Moreover, these HDDs feature a shock sensor that can detect sudden movements, allowing the drive to park its heads to prevent data loss and hardware damage. This is particularly beneficial in mobile environments where the risks of impact are higher.

Both the MHW2040AC and MHW2060AC are designed with energy-saving features, making them an environmentally responsible choice for energy-conscious consumers. Their low power consumption not only contributes to a reduced carbon footprint but also extends battery life for portable devices.

In summary, the Fujitsu MHW2040AC and MHW2060AC are reliable, efficient, and user-friendly hard disk drives that combine moderate capacities with advanced features designed to enhance performance, ensure data integrity, and extend device longevity. These drives are well-suited for a range of applications, making them a solid choice for users seeking dependable storage solutions.

Fujitsu MHW2060AC manual Selective self-test log data structure, Test span, Current LBA under test

Models: MHW2060AC MHW2040AC