bad sector


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bad sector

[‚bad ′sek·tər]
(computer science)
An area of disk storage that does not record data reliably and therefore is not used.

bad sector

A segment of disk storage that cannot be read or written because of a physical problem in the disk. Bad sectors on hard disks are marked by the operating system and bypassed. If data are recorded in a sector that becomes bad, file recovery software, and sometimes special hardware, must be used to restore it.
References in periodicals archive ?
These shadow sections show an important fact that in the process of RAID 5 recovery, if there appear any bad sectors, RAID 5 data will be half-baked and it may cause some data to be damaged, or severe damage to the system, depending on the location of "shadow sections".
New features include ability to skip bad sectors, image consolidation & unification options, disk to disk copy and new Linux and virtualization enhancements
firmware-level data recovery (when hard drives fail to be detected by PCs due to firmware corruptions) and physical data recovery (drives with a lot of bad sectors, clicking noises and even head damage, etc.
A quick fix for this involves running a disk scan which checks for disc errors and fixes the bad sectors (some examples are scandisk and checkdsk utilities in windows).
If the media shows bad sectors replace it immediately, regardless of the age.
Check both "Automatically fix file system errors" and "Scan for and attempt to fix bad sectors.
The floppy disk recovery feature can recover data from diskettes which have bad sectors, or damaged boot, root, FAT (file allocation tables) areas and more.
On magnetic storage disks, particle contamination can result in read-write errors, bad sectors, and total disk failure.
Following the reorganization, Vopt displays information about such items as disk space, number of files, bad sectors, and number of files moved.
While bad sectors can be the result of an aging disk(ette), it is wise to be aware of and investigate any "new" bad sectors.
Specifically, Kroll Ontrack engineers built proprietary tools that can emulate the Dell disk controller while extracting as much data as possible from disks with logical errors, bad sectors and many other error types.
The product also offers a diagnostic option that tests drives and diagnoses bad sectors.