PC-3000 Support Blog

Hello Friends! Sometimes we meet the drives with damaged module 03. If we look at this module in modules table, we can see the description:
0003 Format Select Data Module, and it’s priority is As: unique for each HDD and critical for data access.

From Marvell manual we know:

 This module is present in some drives only. It was introduced in the Zeus drive family.
Before that the zone allocation table was built in the firmware and remained permanent
for each specific firmware version. Now that the recording density depends upon the quality of magnetic heads installed in each individual drive, practically every HDD has its own zone allocation table.
   If the original table and the table recorded in service area do not match, a drive will either freeze during start or it will be unable to read the user data. If the module gets lost, restoring it or picking from another drive does not seem possible.

So what to do if module 03 is damaged by all SA copies?
As you know, we added the automatic restoration of module 03 in PC-3000 v6.2.
Let’s see the possibility of restoration using DragFly4 drive as an example.

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