Collecting questions for specialists of the laboratory for data recovery from hdd

Question

Data recovery

Today I received recovered data from the lab, restored a friend's disk with his family archive for a lifetime, talked to the guys, allowed me to take a picture of the working area
, here are a couple of photos


The place turned out to be quite interesting, and the staff was friendly, agreed to conduct a short interview on the topic of data recovery.
If you have any questions, I will be glad to see them in the comments and tomorrow after tomorrow ask them to specialists.

Answer 1

What are the most common problems?
What are the most frequently broken hards?
How many Macbook drives do they have (Macs have a system to park their heads when they fall)?
What do they do with the SSD?

Answer 2

What about memory cards? MicroSD as a current example :(

Answer 3

What type of raid breaks most often for clients with data loss and why does this happen?

Answer 4

To questions about RAIDs, I wonder if there is any data on which of the dead RAIDs is easier to recover?
1 - hardware (different manufacturers)
2 - linux'ovy mdadm
3 - FreeBSD's geom
It is clear that the comparison is interested in RAIDs of the same levels, for example 10.
And what about the price of restoring the same RAID10 relative to 2 independent disks?

Answer 5

Do they use HDD Regenerator in their work, if so, how do they speak about the effectiveness of this software. What public domain software is being used?

Answer 6

I hirent 15. 2014... Sonya live 2014... ,artzak build dozens
of 10586. How would Sophia start trying to recover files from two screws western 80 ide, Samsung 250 sata2..
There's one boot partition each... on a western, a dozen was on a 20 GB disk ... I also tried to format it yesterday from Linux mint maya ... from gparted ..
After that, even two of the six disks stopped mounting ...
Although it all started a month ago .. .Ten. Build 10586 like... Rebooted PC after 20 minutes of inactivity. With a complaint about the power manager...
An update window popped up... although almost everything was tightly closed except for the browser and the outpost game...
It concerned 2GB .. And it was installed for 10 hours .. I had to expand the partition with ten from 15-25 GB due to empty space on the logical disk .. easus software like .. I
checked the check with the disk before the update and after ... even kureit and kvr after updates ...
Games were buggy after the update .. Turning it off and on for 10-20 minutes ...
And one evening I turn it on and the inscription could not be restored ... And even the mouse and keyboard are not active ...
I'm all in the minutes of May from a flash drive. .. I saw a couple of disks ... they were mounted ... I format a partition with a tenth and a 500 MB disk with service data in gparted, which always creates windows ... Formatting hung with an error ..
The disks all stopped mounting and gparted - 13 error code and I can't do a disk check anywhere...
Linux sees six disks with hieroglyphic names and does not mount .... Gparted advises chkdsk and cannot read and write them like ...
Where to start recovery .. I need a couple of files of 500 MB at least ...
Or better 50 GB, a thousand files ..
I have hirens 15 and Sonya live 2014 flash drives and build dozens of artzak 10586...
Easy recovery? Or a brother on his laptop will rock something else ..? Or am I on android march?
I'll try to drop it immediately into the cloud ... On the phone and in mega 400mb each ..?
I have not lost two screws at once for five years ... it's a shame and scary ...