wipe 2.3.0

A file and block device wiping utility

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What's new in wipe 2.3.0:

  • DEFAULTS! the default is now one single random pass
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LICENSE TYPE:
GPL (GNU General Public License) 
USER RATING:
3.0/5 2
DEVELOPED BY:
Tom Vier
HOMEPAGE:
sourceforge.net
CATEGORY:
ROOT \ System \ Networking
Wipe is a file and block device wiping utility. It is based on work by Peter Gutmann.

There are some low level issues that must be taken into consideration. One of these is that there must be some sort of write barrier between passes. Wipe uses fdatasync(2)
(or fsync(2)) as a write barrier, or if fsync(2) isn't available, the file is opened with the O_DSYNC or O_SYNC flag.

For wipe to be effective, each pass must be completely written. To ensure this, the drive must support some form of a write barrier, write cache flush, or write cache disabling. SCSI supports ordered command tags, has a force
media access bit for commands, and write cache can be disable on mode page 8. IDE/ATA drives support write cache flushes and write cache disabling.

Unfortunetly, not all drives actually disable write cache when yjhis is set up.Those drives are broken. Write caching should always be disabled, unless your system is battery backed and always powers down cleanly.

Last updated on June 16th, 2009

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