|
Contents >
How to ...
4.2.3. Performing a Device Scan
Do a Device Scan when a partition or logical drive has
been deleted or damaged. In other words, use it when you are unable to
locate a drive listed under My Computer.
A Device Scan processes the surface of the physical device trying to
locate all possible logical drives and partitions, whether they are
existing, damaged or deleted.
There are two types of device scan, as described below:
- Advanced Device Scan reads each hard drive track and
looks for the boot sectors of deleted or damaged partitions. If
found, a boot sector is interpreted as a drive. You can scan it and
the look for deleted files and
folders.
- Low Level Device Scan reads each hard drive sector looking for
boot sectors and tries to reconstruct drive structures based on
remnants of the drive's system structures that it finds. This is
very slow process but usually detects more partitions.
To perform a Device Scan follow the steps below:
- From the UNERASER / DOS Console main screen, choose a
physical device or partition that contains your data. It may be a hard
disk drive or a floppy disk drive.
- Press [F9] > Scan > Advanced Device Scan or press
[Enter] to start the
Advanced Device Scan. The Advanced Scan dialog box appears.
- Alternately, press [F9] > Scan > Low Level Scan or press
[Ctrl]+[Enter]
to start the Low Level Device Scan.
Figure 4-4 Advanced Device Scan Options
- Specify scanning parameters using [Tab] and arrows
keys. Press [Enter] to start the scan. Press [Esc] to close this dialog
box and return to a previous screen. Use the descriptions below to help
configure the device scan:
- From sector: - To sector - If you know the approximate
sector location, enter a range here to reduce scanning time.
- Confirm detected drive - Yes (default) = If a new drive is detected
during a device scan, a dialog box appears and waits for an answer
whether to add the new device to the tree or not. No = Any newly
detected device is added to the tree automatically with no human
interaction.
- Skip detected size - Yes (default) = If a new drive is detected during
a device scan, the size of the device is calculated and the area is not
scanned (it is skipped). Scanning continues past the boundary of this
new device. No = The new device is scanned.
- Scan every sector - Usually a Drive Boot Sector is located at the
beginning of each track (every 63rd sector). Yes = Scan every sector
(slow). No (default) = Scan every track (63 times faster).
- After the scan starts, you can watch the progress bar
and wait until the device scan is finished. You can cancel the operation
anytime by pressing [Esc].
- After the device scan is complete, all detected partitions and logical
drives appear. These drives are ready for the Drive Scan process the
same way as with regular drives.
Previous < Contents >
Next
|
