Smart self-test, 1FC, Self-test number | Fujitsu MHW2040AC instruction

5.3 Host Commands

•SMART self-test

The host computer can issue the SMART Execute Off-line Immediate sub- command (FR Register = D4h) and cause the device to execute a self-test. When the self-test is completed, the device saves the SMART self-test log to the disk medium.

The host computer can issue the SMART Read Log Sector sub-command (FR Register = D5h, SN Register = 06h, SC register = 01h) and can read the SMART self-test log.

Table 5.18 SMART self-test log data format

Byte		Item
00, 01	Self-test log data structure
02	Self-test log 1	Self-test number (SN Register Value)
03		Self-test execution status
04, 05		Life time. Total power-on time [hours]
06		Self-test error No.
07 to 0A		Error LBA
0B to 19		Vendor unique
1A to 1F9	Self-test log 2 to 21	(Each log data format is the same as that in
		byte 02 to 19.)
1FA, 1FB	Vendor unique
1FC	Self-test index
1FD, 1FE	Reserved
1FF	Check sum

•

Self-test number

Indicates the type of self-test executed.

Self-test execution status

Same as byte 16Bh of the attribute value.

Self-test index

If this is "00h", it indicates the status where the self-test has never been executed.

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 from the top.

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.

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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 Smart self-test log data format, 1FC, Self-test number, Self-test index

Models: MHW2060AC MHW2040AC