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Tools for hard drive diagnostics, repair, and data recovery
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Inexpensive write blocker?

November 11th, 2018, 14:26

Anyone know of one thats reasonable? I have dedicated units - but i want one that just protects a source drive.

even software: identify it with the last 6 digits of the sn, and the sw blocks all accidental write attempts until you disable it for that device ... like a safety.

i know the second idea would never exist, but what about the first?

I tried:

Manufacture: Wiebetech
Model: Forensic UltraDock v5.5

It's caca. seemed like you could write to the disk, even with it on. stupid rapey waste of money. p.o.s. company.

https://www.cru-inc.com/products/wiebet ... dock-v5-5/

Re: Inexpensive write blocker?

November 11th, 2018, 18:25

DeepSpar is releasing one shortly that is very impressive, based on the tests I've done thus far.

Re: Inexpensive write blocker?

November 11th, 2018, 18:37

lcoughey wrote:DeepSpar is releasing one shortly that is very impressive, based on the tests I've done thus far.


But i don't expect that to be ... cheap ...

Re: Inexpensive write blocker?

November 11th, 2018, 22:54

What is cheap?

Re: Inexpensive write blocker?

November 12th, 2018, 11:26

I've got a couple of these that I occasionally use when I'm just connecting a known healthy drive and I don't want to take any chance that the system will try to mount it: https://www.amazon.com/Coolgear-SATA-Ad ... 005C55OYA/
But, obviously, you're limited over USB.

I've also got a Tableau SATA write blocker bay in a forensic acquisition server I picked up on eBay, but I wouldn't call that "affordable" if you were to try to buy one new. I was just lucky that the seller didn't even know what they had there.

Re: Inexpensive write blocker?

November 12th, 2018, 18:26

lcoughey wrote:What is cheap?


$50 USD or something like that ?

Re: Inexpensive write blocker?

November 12th, 2018, 18:30

What about mounting the drive using something like PC-3000, MRT, HRT, etc ? Wouldn't that "prevent" as well some writing to the drive unless you want to ?

Re: Inexpensive write blocker?

November 13th, 2018, 2:29

what do you guys use to make sure something continues copying irrespective of whether the drive disconnects (hot, etc) or hits a file that denies you permission -- etc ... ?

Preferably OS X
Obviously Windows
Also, Ubuntu as well.

:)

Re: Inexpensive write blocker?

November 13th, 2018, 16:09

Are you referring to file level copying or sector-by-sector imaging?

Re: Inexpensive write blocker?

November 13th, 2018, 19:01

trumanhw wrote:what do you guys use to make sure something continues copying irrespective of whether the drive disconnects (hot, etc) or hits a file that denies you permission -- etc ... ?

Preferably OS X
Obviously Windows
Also, Ubuntu as well.

:)


If you copy by LBA (or even C/H/S) you are just coping the exact data of each LBA from a source to a destination drive (or image file) without even bothering with the content ....

Meaning that on cloning/imaging at LBA level (or sector level) you will not have permissions or OS issues as the file system used doesn't matter at all for the tool cloning the data as long as you don't need to do fancy stuff like cloning only the LBAs with data or extracting specific files, etc ... A file will not deny you permission if you are cloning/imaging at LBA level. You might hit a bad sector and you might not be able to copy data or the drive might be bsy and no longer respond and you might need to send soft reset, hard reset or even power off/on but the files and the file system is not an issue when cloning at LBA level.

To facilitate cloning/imaging people do use hardware based tools like PC-3000 DE, MRT - DE, DDI4, RapidSpar, DFL, etc ..... Personaly i use HRT-DRE but at this point in time i might be the only one using this very old tool. The majority of professionals will use PC-3000 and DDI4. The ones that go cheaper will use MRT. Some computer repair shops will use RapidSpar just to do the cloning ....

Re: Inexpensive write blocker?

November 13th, 2018, 19:04

You can process the image files / clones later with logic recovery software like R-Studio and stuff like that .... Or if you do have hardware based tools like PC-3000, MRT, RapidSpar, HRT-DRE the components to extract data (Data Extractor on PC-3000, Data Explorer on MRT and "Data Recovery Edition" on HRT) do have options to mount the file systens that the tools do know about to go after specific files or only image/clone the LBAs that are filled with data present on the file alocation tables, etc ....
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