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Maxtor G-List corruption causing drive failureBackground: Failures on the 'slimline' series of Maxtor hard disks (eg. DiamondMax Plus 8, Fireball 3, 541DX) can sometimes be attributed to a corruption of service data located in the firmware zone of the hard disk. This corruption often involves a table commonly known as the G-List and in many cases, it is impossible to read the original contents of the G-List once the drive has failed. What is the G-List?: The G-List is a growing table of defects that the drive uses to avoid bad sectors that have developed since its factory formatting, the drive marks a sector as bad and then allocates a reserve sector from a special area for the drive to use so that the LBA of the drive does not change. Operation: At startup, the Maxtor hard disk loads the service data from its firmware zone into RAM and calculates the checksums of certain critical modules before allowing the drive to report on readiness. One of these modules is the G-List. When one of these drives fail with a G-List fault it will:
Possible repair and data recovery: Despite G-List inaccessibility, successful recovery of the drive and the data on it is often possible as a complete copy of the defects stored within the G-List is also located in the Pivot Defects table, the same drive table that is actually used by the drive when loading the defects and translating the Logical Block Addressing (LBA) of the drive at start-up. The only reason that the drive will not start with a corrupt G-List is that it does not have the ability to repair the G-List itself and thus has nowhere to store any new defects that may develop during use. Because of this unique feature of the Maxtor hard disk it is almost always possible to perform a near 100% recovery of the data from the drive by using a multi-stage repair process. Please Note: Hard disks made by every manufacturer are subject to developing problems. Maxtor hard disks are no more prone to developing them than any other manufacturers hard disk. We are able to provide more comprehensive information for Maxtor hard disk firmware zone failures because in many cases, the symptoms are much more specific and identifiable. > Back to the MAIN data recovery page Please note that all modern hard disk drives are manufactured to very high standards, fail infrequently and have very similar rates of reliability. > Data recovery & IT professionals: Click here for training courses for the repair and data restoration from faulty Maxtor hard disk drives |
Maxtor 'Slimline' families:
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