* A light bulb went off in my head while reading what you wrote! : )

[xor]

A light bulb went off in my head while reading what you wrote! : )

standard physical HDD have a circular disk structure,
if we think of the disk as a clock in the sense of synchronicity
especially regarding power cuts;
on the point of safe backup of data.
a copy of what he started typing at 12 o'clock
capable of backing up at 6 o'clock
do you have a file part system!?

* 1st rule of physics 1 thing cannot be in 2 places at the same time.
this situation ; means that the read-write pin cannot damage the backup data during a power outage.
subject to ; this backup system will naturally divide the capacity into 2 in the middle! : )
** (of course; the rules change at the point of quantum physics:)

Serious corporate companies always back up long-term data on HDD, as per their data recovery policy!

If we say "Yin and yang" to the name of this format, I think everyone will understand