What exactly does scandisk do?
-
i was just wondering what exactly does the scan disk program do? does anyone know?
:bob: Email: theeclypse@hotmail.com URL: http://www.onyeyiri.co.uk:bob:
"What goes up must come down. Ask any system administrator"
-
i was just wondering what exactly does the scan disk program do? does anyone know?
:bob: Email: theeclypse@hotmail.com URL: http://www.onyeyiri.co.uk:bob:
"What goes up must come down. Ask any system administrator"
A few things. It checks the directory structures to make sure there are no circular references, two files marked as being stored in the same location or similar errors like folders with files that do not exist. Basically for corrupted items in the main file system structures. This is normally checked quite quickly. Then it moves on the the actually disc surfaces which are the individual hard disc platters. It scans each track on the platters for bad bits/bytes. Basically say it wants to right a bit as 1 rather than 0, but the actual disc surface is damaged/faulty though wear then it may try to write the element as a 1, but it remains as a 0. This could lead to bad data, so it can check for these, and remember to not use them in future. Make sense? Check out the Storage Review reference section [New Window]. Hope this helps, Giles
-
i was just wondering what exactly does the scan disk program do? does anyone know?
:bob: Email: theeclypse@hotmail.com URL: http://www.onyeyiri.co.uk:bob:
"What goes up must come down. Ask any system administrator"
It also checks for lost clusters, which usually happen when an abnormal shutdown has occured. These are areas on the disk that are reported as occupied by files, but they're actually not associated with any files. They simply take up room on the HD - room that you cannot use for your own files - unless you get rid of those clusters using scandisk. In some operating systems like Windows NT-based, lost clusters are reduced to a minimum by making sure that any IO operation, made by the system, must report its completion to the operating system, or it will be canceled and rolled-back at boot time. /=/=/=/= Deus /=/=/=/=