Smart Read LOG, Smart Write LOG | Fujitsu MHW2040AC, MHW2060AC

5.3 Host Commands

Table 5.7 Features register values (subcommands) and functions (2 of 3)

Features Resister				Function
X’D5’	SMART READ LOG:
	A device which receives this sub-command asserts the BSY bit, then reads
	the log sector specified in the SN register. Next, it clears the BSY bit and
	transmits the log sector to the host computer.
		SN:	SC:	Log sector

		00h:	01h:	SMART log directory
		01h:	01h:	SMART summary error log
		02h:	33h:	SMART comprehensive error log
		06h:	01h:	SMART self-test log
		09h:	01h:	SMART selective self-test log
		80h-9Fh: 01h-10h:		Host vendor log
	* See Table 5.16 concerning the SMART error log data format.
		See Table 5.18 concerning the SMART self-test log data format.
		See Table 5.19 concerning the SMART selective self-test log data
		format.
X’D6’	SMART WRITE LOG:
	A device which receives this sub-command asserts the BSY bit and when it
	has prepared to receive data from the host computer, it sets DRQ and clears
	the BSY bit. Next, it receives data from the host computer and writes the
	specified log sector in the SN register.
		SN:	SC:	Log sector
		09h:	01h:	SMART selective self-test log
		80h-9Fh: 01h-10h		Host vendor log
	* The host can write any desired data in the host vendor log.
X’D8’	SMART ENABLE OPERATIONS:
	This subcommand enables the failure prediction feature. The setting is
	maintained even when the device is turned off and then on.
	When the device receives this subcommand, it asserts the BSY bit, enables
	the failure prediction feature, and then clears the BSY bit.
X’D9’	SMART DISABLE OPERATIONS:
	This subcommand disables the failure prediction feature. The setting is
	maintained even when the device is turned off and then on.
	When the device receives this subcommand, it asserts the BSY bit, disables
	the failure prediction feature, and then clears the BSY bit.

C141-E258

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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 MHW2040AC, MHW2060AC Features register values subcommands and functions 2, Smart Read LOG

Models: MHW2060AC MHW2040AC

5.3 Host Commands

Table 5.7 Features register values (subcommands) and functions (2 of 3)

SMART READ LOG:

SMART WRITE LOG:

SMART ENABLE OPERATIONS:

SMART DISABLE OPERATIONS:

MHW2060AC, MHW2040AC specifications