Drive Genius 3 has the ability to resolve and dereference bad blocks that develop on your mechanical hard drives. Even more important Drive Genius 3’s handy little monitoring tool called “ Drive Pulse “ and it can even tell you when you need to do it. In this blog I will explain the remapping of bad blocks and how Drive Genius 3’s “ Scan” feature does it specifically. In addition at the end of this blog I will list steps on how you can use Drive Genius 3 to do it yourself and keep your mechanical hard drives in tip-top shape for future access.

Data on a hard drive is stored in a series of blocks. During normal operation every block of the data should be able to be written to and read from again. However, a hard drive can develop a problem where one or more blocks may loose storage capacity and become unreadable.

Most current hard drives will automatically reallocate any bad blocks they come across to another sector on the hard drive. Each hard drive has a set amount of space to handle these bad blocks and reallocations.

Drive Genius 3’s Scan feature while “ Spare Bad Blocks “ is checked can instruct the hard drive to dereference the bad blocks. When Drive Genius 3 detects a bad block , it will attempt to read the information for the bad block and write it back to the same block. This will indicate to the hard drive that the sector is not available, which will require its internal mechanisms note the bad sector and reallocate the data onto a different sector.

To Scan your volume or drive and resolve your bad blocks follow the steps below.

Before you start be sure you have a good backup of the volume or drive you are scanning.

  1. Launch Drive Genius 3 from your startup DVD or preferred startup disk.
  2. Click n the Scan icon.
  3. Highlight the volume or drive you want to scan.
  4. Enable the options for “ Spare Bad Blocks”
  5. Click on the Start button.