hidden disk areas

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hidden disk areas

The host protected area (HPA) and device configuration overlay (DCO) are two areas at the end of SATA and IDE hard disk drives that are only accessible via special utilities but not the operating system, BIOS or general user. Both the HPA and DCO can reside on the same drive, and both areas offer potential storage for hiding small to large amounts of secret data, which forensic analysts must be aware of. See SATA and IDE.

Host Protected Area (HPA)
The HPA can contain boot code as well as diagnostics and other utilities, all of which are specific to each drive vendor. The HPA was added with the IDE/ATA-4 specification (see IDE).

Device Configuration Overlay (DCO)
The device configuration overlay (DCO) lets PC vendors buy drives in a range of sizes from different manufacturers and configure them with the same number of sectors in order to appear the same size to the operating system. The DCO was introduced with the IDE/ATA-6 specification (see IDE).
References in periodicals archive ?
And although the military spokesman could tell reporters that the valuable production equipment was being dismantled and transported to hidden storage sites, he left unanswered the question of why the trucks carrying the equipment were not bombed in transit.
It's easy to love as comes with a hidden storage and a hinged top so you can work on a laptop or set it up with a board game.
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A pouffe that lifts up to reveal hidden storage or a divan bed with deep drawers.
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It tells a story of a young woman, Ella (Mischa Barton), who discovered a hidden storage room in her boyfriend's unit.
Kleinman noted a few elements that were ahead of their time, including the disappearing wall of glass that folds into hidden storage spaces, making the home's interior a part of the outdoor entertaining space and pool.
The familiar hidden storage compartments in the rear footwell are also retained.
The front-facing dining room, situated to the left of the reception, is light and airy and has hidden storage, as well as a feature circular window.
The guest room has a wall of custom bookshelves and hidden storage cabinets, a flat screen TV, a large fitted closet.