CANON ir2270 HDD
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HPA Problems When Upgrading Hard Disk
Some people will eventually want to upgrade their hard disk to a new disk with larger capacity. Users should be warned about a unique problem that may occur in certain circumstances. If you try to replace your hard disk with a larger disk, if you try to clone the contents of your original disk to the new disk, and if your original disk contains HPA-based MediaDirect, then you may discover your new disk's capacity becomes truncated to the size of the original disk.
For example, say you wish to replace your 60 GB disk with a new 120 GB disk. To avoid reinstalling everything, you decide to use something like Acronis True Image or Symantec Ghost to clone the contents of the 60 GB disk to the 120 GB disk. When you try to boot the new disk, however, it blue-screens or fails to boot, and a check of the BIOS settings shows the BIOS thinks your new disk is around the same size as the old disk! No amount of recloning, reformatting, repartitioning, or rejumpering will get the BIOS to recognize the full size of the disk.
During the process of cloning, some utilities will copy the entire first track from the original disk, which includes the Dell MBR (in LBA Sector 0) and the HPA boot code (in LBA Sector 3). The problem is caused when both of these sectors are carried over to the new disk. The problem is avoided if either one or both sectors are not copied.**Knowledge is time consuming, exhausting and costly for a trained Tech.**Comment
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**Knowledge is time consuming, exhausting and costly for a trained Tech.**Comment
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**Knowledge is time consuming, exhausting and costly for a trained Tech.**Comment
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