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4-kilobyte (4K)-sector-based hard disk drive performance optimization method

A sector and performance technology, applied in the computer field

Inactive Publication Date: 2013-01-09
LANGCHAO ELECTRONIC INFORMATION IND CO LTD
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  • Application Information

AI Technical Summary

Problems solved by technology

If data is stored in position 5 and data is stored in the first half of position 2 at the same time, the data needs to be moved out first to get enough 4K to be stored in position 2, that is, the process of "read-modify-write" occurs Into" three processes, obviously time-consuming and troublesome

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  • 4-kilobyte (4K)-sector-based hard disk drive performance optimization method

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Embodiment Construction

[0043] Such as figure 1 As shown, in each 512-byte sector, 50 bytes of data-independent overhead are reserved for ECC, and another 15 bytes of overhead are used for gap (Gap), synchronization (Sync) and address mark (Address Mark) section. This results in sector formatting efficiency only about 88% (512 / (512 + 65)).

[0044] Such as figure 2 As shown, the advanced format standard uses the same number of bytes for Gap, Sync and Address Mark as the traditional sector, but increases the ECC field to 100 bytes. In this way, the sector formatting efficiency has reached 97% (4096 / (4096 + 115)), which is nearly 10% higher than the traditional sector.

[0045] These formatting efficiencies will gradually play a role, helping to produce higher capacity and improve data integrity. The new advanced formatting standards have made a lot of progress in 4K byte sectors. Among 4K byte sectors, 8 Traditional 512-byte sectors are combined into a 4K-byte sector.

[0046] Install the Linux operati...

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Abstract

The invention provides a 4-kilobyte (4K)-sector-based hard disk drive performance optimization method. A format standard after optimization is characterized in that the byte quantity of a gap field Gap, a synchronization field Sync and an address mark field AddressMark are equal to the byte quantity of those in the conventional sector, and only the byte quantity of an error correction code (ECC) field is increased to 100 bytes, so that sector formatting efficiency reaches 97 percent which can be calculated by a formula 4,096 / (4,096+115) and is increased by 10 percent compared with that of the conventional sector; the formatting efficiency can gradually play a role in generating a new and advanced format standard which has high capacity and improves data integrity so that a 4K sector makes big progress; and in the 4K sector, the 4K sector is formed by merging eight conventional 512-byte sectors, and when the format of a system disk is converted into a fourth extended file system (ext4) format, system performance can be greatly improved by 90 to 120 percent.

Description

Technical field [0001] The invention involves the field of computer technology, which specifically involves a method of optimizing the performance optimization of 4K railway. technical background [0002] A hard disk magnetic movie is not all used to store data, and some sectors are used to do other things.In the traditional sector segmentation mechanism, every 512BYTE data needs to be separated by a synchronous / dam region and an ECC error verification area.In the "Advanced Format" mode, every 4K is a sector, which is equivalent to combining the previous 8 sectors into one. It only needs a synchronous / separated area and a slightly larger ECC verification area.Format technology requires only one Sync / DAM and ECC region for every 4K data record sector, while traditional ones need 8.The seven sectors saved by Sync / DAM and ECC can be used to store more data.For users to install Windows XP or other old versions of Windows operating system users, the hard disk partitions that are forma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/06G06F9/445
Inventor 刘胜范志超梁文俊蔡积淼
Owner LANGCHAO ELECTRONIC INFORMATION IND CO LTD
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