Festplatte hat 1MB zu wenig

Q1: I received a 40 GB drive in replacement for a 20 GB model in PC. The drive is reported as 20 GB capacity. How can i get full capacity ?

A1: If you see in 'Device List' menu at your disk drive a notice '!SET MAX: HPA IS ACTIVE', use 1. method, otherwise use 2. method.

In program HDAT2 select your disk drive and press Enter to show 'Main Menu'.

1. method:

In 'Device List' menu at your disk drive you see notice '!SET MAX: HPA IS ACTIVE'.
Select 'SET MAX (HPA) Menu', then select 'Set Max Address' and press Enter. By default is set so called native size of disk drive disku and you can just press a key 'S' to setup original capacity of hard drive and remove HPA area.
If the command is aborted, try change 'LBA mode' from 28 to 48 or vice versa (if disk supports 48-bit LBA mode).

2. method:

Select 'Device Configuration Menu', then select 'Restore' and press Enter. If you don't see any error message, in 'Device List' menu press a key 'D' to make new detection of devices or simple make restart of PC's and check capacity of your hard drive.
If you see any error message or in 'Device List' menu at your disk you see a notice '!DCO: FROZEN', then it is possible that BIOS was sent a command DCO Freeze and all subsequent DCO commands will be aborted now. How to try bypass this state see answer nr. 2.

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Q6: Host Protected Area (HPA) vs. 28/48-bit LBA mode

A6: There is a problem of incompatibility on some hard drives (e.g. Seagate and/or in an external Maxtor One Touch) when you are using 48-bit command for removing Host Protected Area (HPA) created with 28-bit command.
48-bit command cannot remove HPA created with 28-bit command and vice-versa. Following solution is for disk supports 48-bit LBA mode only and if you have HPA greater than 127 GB.

Notice:

"Some vendor-specific external drive enclosures (Maxtor) are known to use HPA to limit the capacity of unknown replacement hard drives installed into the enclosure. When this occurs, the drive may appear to be limited in size (e.g. 128 GB). In this case, one must use software utilities that use READ NATIVE MAX ADDRESS and SET MAX ADDRESS to change the drive's reported size back to its native size."

Solution:

1. Power-on PC, boot and start HDAT2.
2. In 'SET MAX (HPA) Menu' select 'Set Max Address'. Change 'LBA mode' from 48 to 28-bit LBA mode and press 'S' key to set maximal address for 28-bit LBA mode (127 GB).
3. Power-off PC (Important !), power-on PC, boot and start HDAT2.
4. In 'SET MAX (HPA) Menu' select 'Set Max Address'. Leave the selected 48-bit 'LBA mode' (or change 'LBA mode' from 28 to 48-bit LBA mode) and then press 'S' key to set maximal address for 48-bit LBA mode.
5. After restart you should get the full (native) capacity of hard drive.

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Sniperwolf schrieb:

Die Frage ist : wie kam es zu der Hidden Area?

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