HDD evolution will hit Windows XP
Specialists from the IDEMA (International Disk Drive Equipment and Materials Association) Association warn that all hard drive manufacturers agreed to switch to a new 4-KB sector size format instead of 512 bytes from January 2011. This will save disk space by reducing the amount of service information by eight times. Effective HDD volume will increase by 7-11%.
The transition to 4K is quite logical, given that the files less than 512 bytes are now practically not found, and this size of the sector looks like archaism. It was originally created for floppy disks in the hundreds of kilobytes (now not everyone remembers what it really is - a floppy disk). On modern terabyte hard drives, small sectors only senselessly devour disk space.
According to experts, the increase in the size of the sector is the largest upgrade of HDD technology over the past 30 years. But the problem is that not all operating systems normally support the new sector size. If in Windows Vista, Windows 7, latest Mac OS and Linux (kernel releases after September 2009) there are no problems, then Windows XP will have problems. For this and other older operating systems, manufacturers will have to make a special emulation mode, in which the recording speed on the HDD will suffer.
In particular, instead of one pass, the recording will have to be done in two passes. The delay will be about 5 milliseconds. In general, new HDDs will run about 10% slower under Windows XP than under new operating systems.
The transition to 4K is quite logical, given that the files less than 512 bytes are now practically not found, and this size of the sector looks like archaism. It was originally created for floppy disks in the hundreds of kilobytes (now not everyone remembers what it really is - a floppy disk). On modern terabyte hard drives, small sectors only senselessly devour disk space.
According to experts, the increase in the size of the sector is the largest upgrade of HDD technology over the past 30 years. But the problem is that not all operating systems normally support the new sector size. If in Windows Vista, Windows 7, latest Mac OS and Linux (kernel releases after September 2009) there are no problems, then Windows XP will have problems. For this and other older operating systems, manufacturers will have to make a special emulation mode, in which the recording speed on the HDD will suffer.
In particular, instead of one pass, the recording will have to be done in two passes. The delay will be about 5 milliseconds. In general, new HDDs will run about 10% slower under Windows XP than under new operating systems.
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Source: https://habr.com/ru/post/87145/
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