You’re the one making extraordinary claims. You need to back them up. You said the data in HDDs only lasts 2-3 years unless they are plugged in. That is patently false in both ways. No, they don’t, and no, keeping them plugged in doesn’t help what data loss does occur. Error correction occurs when reading the data. And data is only read when asked for.
The firmware doesn’t “control” the charges. They just sit there. When the drive is powered but not in use, it sits there. Nothing is being done to “maintain” the charges.
If you don’t consider a static magnetic charge on a platter to be “permanent”, then no magnet is permanent. The only impermanent magnet is an electromagnet.
I did not say that. I said you will lose bits over years. When typical hdd’s are in the terabytes that means there are trillions of bits. A few bits here and there can be corrected. A plugged in drive will lose data differently than an unplugged drive. A plugged in drive won’t be as likely to lose data from the magnetic charge becoming too weak to read properly.
Oh sorry the firmware controls the parts of the drive that interact with the magnetic charge. The firmware has the ability to look at the health of the drive and take action on it. Though it does depend on the drive and its capabilities.
No magnet is truly permanent. But if the platter were using more “permanent magnetic material” then it would require a lot more energy to switch the state or flip the bit. It’s why they use a very small amount of magnetic material in the platter.
You are glossing over details that make you seem uninformed or lazy.
Also, this is not a feature in hard drive firmware. A scrub like you are describing is a feature in filesystems or raid solutions. A disk on it’s own will not rewrite data over itself. Show me a product page from a disk manufacturer that says it does. If you can find it, it will not have been a popular drive because of the increased power usage and reduced life of the drive.
You’re the one making extraordinary claims. You need to back them up. You said the data in HDDs only lasts 2-3 years unless they are plugged in. That is patently false in both ways. No, they don’t, and no, keeping them plugged in doesn’t help what data loss does occur. Error correction occurs when reading the data. And data is only read when asked for.
The firmware doesn’t “control” the charges. They just sit there. When the drive is powered but not in use, it sits there. Nothing is being done to “maintain” the charges.
If you don’t consider a static magnetic charge on a platter to be “permanent”, then no magnet is permanent. The only impermanent magnet is an electromagnet.
I did not say that. I said you will lose bits over years. When typical hdd’s are in the terabytes that means there are trillions of bits. A few bits here and there can be corrected. A plugged in drive will lose data differently than an unplugged drive. A plugged in drive won’t be as likely to lose data from the magnetic charge becoming too weak to read properly. Oh sorry the firmware controls the parts of the drive that interact with the magnetic charge. The firmware has the ability to look at the health of the drive and take action on it. Though it does depend on the drive and its capabilities. No magnet is truly permanent. But if the platter were using more “permanent magnetic material” then it would require a lot more energy to switch the state or flip the bit. It’s why they use a very small amount of magnetic material in the platter.
You are glossing over details that make you seem uninformed or lazy.
Also, this is not a feature in hard drive firmware. A scrub like you are describing is a feature in filesystems or raid solutions. A disk on it’s own will not rewrite data over itself. Show me a product page from a disk manufacturer that says it does. If you can find it, it will not have been a popular drive because of the increased power usage and reduced life of the drive.