• Create BookmarkCreate Bookmark
  • Create Note or TagCreate Note or Tag
  • PrintPrint
Share this Page URL
Help

Chapter 6. Understanding Disks and Disk ... > Case Study: Adjusting for Drift

Case Study: Adjusting for Drift

Drift occurs when the alignment of a hard drive's read/write heads drift slightly after continual use of the drive. Drift also can be detected when you remount the drive or stand the computer on its side like a tower. This drifting does not affect the information that has been written to the disk, but the heads might have difficulty locating the information because the low-level format identification information, which is needed to find the data, is no longer aligned beneath the heads. You can eliminate this problem by performing a low-level format of the disk to align the low-level disk tracks with the current location of the heads. Also, magnetic signals that are recorded on disks lose strength over the years, so the manufacturer's low-level format might fade to a point where the heads cannot reliably read format information.

Normally, a low-level format of your hard disk erases all existing data. Certain types of third-party software, however, can perform a low-level format without data loss.


PREVIEW

                                                                          

Not a subscriber?

Start A Free Trial


  
  • Creative Edge
  • Create BookmarkCreate Bookmark
  • Create Note or TagCreate Note or Tag
  • PrintPrint