English Version

The Storage Hitachi IC25N040ATMR04 unwanted knock

Artem Makarov aka Robin

The head of the Stavropol affiliate of "Evrica" group of companies, one of 1C certified franchise over Stavropol region, came to me with his problem. One of their clients had a trouble with a luggable hard drive on which all the account data base were stored. I worked with that company on client data recovery.

In the USB 2.0 HDD External Box there was a Hitachi ATMR storage 2,5" vol. 40 Gb. At standard power on the engine accelerated and head position actuator evenly rapped against the stop.

During damage diagnosis defining I excluded disc microprogram bugs and printed circuit board failure that could lead to such rap. The only reason of it should be found inside the hermetical zone. I thought of either heads reading elements or preamplification/commutation chip.

Opened donor disc Hitachi ATMR

Opened donor disc Hitachi ATMR

It is worth to mark such a peculiarity of notebook storage discs as plates scratching with bad heads. The matter is that head parking design features in all the range of hard drives 2,5" often lead to mechanical failure of reading /recording head holders.

In that case plates were good, I found a fitting donor disc at my repair shop store, and soon after head replacement all the necessary folders were sent to the file server.

Write a comment
16 september 2012, 11:34

If you are talking about the FORMAT commnad, meaning that you aren't talking about deleting partitions when you say Format, and you aren't talking about using a set of factory recovery discs when you say format then part of the format commnad requires you to specify a *single* partition. So, format is incapable of formatting several partitions at once. The format commnad has two options a quick format which just rewrites the header on the partition to make windows THINK it is now an empty formatted partition, and as you write data to this newly formatted partition, it erases the old data that is actually there and an actual format which slowly deletes the data on the partition.Unfortunately, if Windows is installed on the C drive currently, you CANNOT format the C drive while you are booted into Windows. Such is the nature of the OS, that you cannot format the same partition that contains the OS you are using to format the partition.end of line