Challenger Rocket zMAP¶
Rocket zMap is the method challengeros uses to log every lba sector status. Lba Map is essential in a data Recovery Process, it will reduce dramatically risks of failure of a device in a critical status.
Introduction¶
Every Task in Rocket owns a Lba Sectors Map.
zMap File is located into task working folder and is called ‘zmap.map’.
Every time Rocket Reads a single sector or a block of sectors, zMap is updated with reading result.
In a cloning or imaging task, zMap will hold target device transferred sectors, giving rocket the chance to read from target transferred sectors, reducing source stressing.
Using zMAP¶
Every Task in Rocket has a Lba Sectors Map.
While Reading a device, if sector has been readed successfully, Rocket will Mark zMap with green color, if sector has some corruption zMap color will be yellow.
When a block is marked as skipped, it will handled as a bad area, so no more reading tries will be performed. If any file cluster is located on a yellow block, it will be skipped as bad file.
If you enabled “Retry Single Sector Option” any skipped block will be readed again, and if error cannot be corrected, it will be marked as red ( bad sectors ).
Note
In most of cases, a red sector cannot be readed at all. Leave it as red, and try to recover most of lba area from your device.
zMap Manager¶
zMap Manager Tool gives you a complete view of the Lba Map Zones and reading status.
Launching Lba Map Manager:
Tools => Lba Map => Map Manager
Press Play Button to start zMap Analysis.
Single zones can be cleared for specific bit.
Press Play Butto Again to see last action result.
Editing zMap¶
Understanding zMap Values¶
Understanding zMap is easy, a specific color is assigned to any lba status.
Rocket assigns to any Lba Sector 1 BYTE with 8 State BIT, refer to zMap Values Table Color.
| Status | Color |
|---|---|
| No Read | White |
| Readed | Green |
| Skipped | Yellow |
| Error | Red |
Basically if sectors are green, you are reading device successfully.
If ALL Sectors are yellow, do exist a severe damage, like heads or firmware problem.
If Sectors are green and yellow, your device has a bad sectors problem.
zMap bit Status Fields Reference¶
| Item | Value |
|---|---|
| LBA_MAP_PARTITIONS_DATA | 0x80 |
| LBA_MAP_FILE_START | 0x40 |
| LBA_MAP_FILE_SYSTEM | 0x20 |
| LBA_MAP_ALLOCATED_DATA | 0x10 |
| LBA_MAP_BLANK | 0x08 |
| LBA_MAP_READED | 0x04 |
| LBA_MAP_SKIPPED | 0x02 |
| LBA_MAP_ERROR | 0x01 |