Sector slipping
Overview
 
Sector slipping is a technique used to deal with defective sectors
Disk sector
In computer disk storage, a sector is a subdivision of a track on a magnetic disk or optical disc. Each sector stores a fixed amount of user data. Traditional formatting of these storage media provides space for 512 bytes or 2048 bytes of user-accessible data per sector...

 in hard disk drives. Due to the volatility of hard disk
Hard disk
A hard disk drive is a non-volatile, random access digital magnetic data storage device. It features rotating rigid platters on a motor-driven spindle within a protective enclosure. Data is magnetically read from and written to the platter by read/write heads that float on a film of air above the...

s from their moving parts and low tolerances some sectors become defective. Defective sectors can even come on hard disks from the factory so most disks incorporate a bad-block recovery system to cope with these issues.
During a low-level format
Disk formatting
Disk formatting is the process of preparing a hard disk drive or flexible disk medium for data storage. In some cases, the formatting operation may also create one or more new file systems...

, defect lists are populated which store which sectors are bad.
Quotations

I knew that the moment the great governing spirit strikes the blow to divide all humanity into just two opposing factions, I would be on the side of the common people.

As quoted in Becoming Che : Guevara's Second and Final Trip through Latin America (2005) by Carlos "Calica" Ferrer, as translated by Sarah L. Smith (2006), p. 170

I am not Christ or a philanthropist, old lady, I am all the contrary of a Christ.... I fight for the things I believe in, with all the weapons at my disposal and try to leave the other man dead so that I don't get nailed to a cross or any other place.

Letter to his mother (July 15, 1956) as quoted in Che Guevara: A Revolutionary Life (1997) by Jon Lee Anderson|Jon Lee Anderson ISBN 0802116000

I am not a liberator. Liberators do not exist. The people liberate themselves.

Statement in Mexico (1958); as quoted in Kaplan AP World History 2005 (2004) edited by the Kaplan, Inc.|Kaplan staff, p. 240

If it is an element of liberation for Latin America, I believe that it should have demonstrated that. Until now, I have not been aware of any such demonstration. The IMF performs an entirely different function: precisely that of ensuring that capital based outside of Latin America controls all of Latin America.

Regarding the International Monetary Fund|International Monetary Fund (IMF), in an interview for Radio Rivadavia of Argentina (3 November 1959)

The interests of the IMF represent the big international interests that today seem to be established and concentrated in Wall Street.

Regarding the IMF, in an interview for Radio Rivadavia of Argentina (3 November 1959)

 
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