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The SATA drive that was the basis for the hotswap was a 2TB model, presumably with a head map of 0b0000111111. The recertified SAS drive has a head map of 0b0000111000, but originally it was a SATA drive with a head map of 0b0000111111. This means that the patient drive originally had an SA on physical heads 0 and 1. Those are the heads that are being dumped by the 2TB SATA donor after a hotswap. The invisible SAS firmware modules are in the SAS SA on physical heads 3 and 4.

Does this make sense?

Author:	RAJOO [ April 28th, 2026, 2:28 ]
Post subject:	Re: WD SAS 2TB
Please please

Author:	E123 [ April 28th, 2026, 4:35 ]
Post subject:	Re: WD SAS 2TB
Bach RE

Author:	RAJOO [ May 1st, 2026, 4:12 ]
Post subject:	Re: WD SAS 2TB
E123 wrote: Bach RE SIR as you know this is SAS hdd i want to repair, i have MRT sata support can you advice to detect in repair utilities thanks

Author:	E123 [ May 1st, 2026, 5:11 ]
Post subject:	Re: WD SAS 2TB
Do you suggest connecting a SAS drive to a SATA controller? Looks like you've invented a new specification... Try contacting the MRT lab for support. It will be very interested to know their answer. If you don't make idiotic suggestions, then some WD drives with a SAS interface can be restored using T-REX and a compatible SATA PCB. I practically did not do this, I only heard about successful experiences. I can only note that after such a repairing the disks will only work with a SATA PCB.

Author:	fzabkar [ May 1st, 2026, 11:41 ]
Post subject:	Re: WD SAS 2TB
Here is an interesting thread where someone used a SATA PCB to access a SAS drive: https://groups.google.com/g/datarecoverycertification/c/ZM1Yghm9rV4/m/5B5fT5lZEAAJ I suspect that the drive in that thread began life as a 2TB, 6 head, SATA model, and was subsequently recertified as a 3 head SAS model. My theory: Quote: The SATA drive that was the basis for the hotswap was a 2TB model, presumably with a head map of 0b0000111111. The recertified SAS drive has a head map of 0b0000111000, but originally it was a SATA drive with a head map of 0b0000111111. This means that the patient drive originally had an SA on physical heads 0 and 1. Those are the heads that are being dumped by the 2TB SATA donor after a hotswap. The invisible SAS firmware modules are in the SAS SA on physical heads 3 and 4. Does this make sense?

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WD SAS 2TB http://forum.hddguru.com/viewtopic.php?f=28&t=46006	Page 1 of 1

Author:	RAJOO [ May 2nd, 2026, 4:34 ]
Post subject:	Re: WD SAS 2TB
Hi Anybody here please advise sata pcb , To repair this sas hard-drive on TREX. THANKS

Author:	fzabkar [ May 2nd, 2026, 13:18 ]
Post subject:	Re: WD SAS 2TB
Show us a clear hi-res photo of the PCB so that we can identify the ICs. Also, please dump the ROM. We will need the adaptives. I found this photo, but it is useless: https://hddpcb.eu/1760-large_default/pcb-western-digital-2060-771676-000.jpg

Author:	fzabkar [ May 2nd, 2026, 13:42 ]
Post subject:	Re: WD SAS 2TB
I'm wondering if 2060-771642 would be compatible: https://s.turbifycdn.com/aah/yhst-14437584971410/91710995-19.gif It has a SMOOTH L7251 3.1 motor controller. The HDA pinout looks similar, but we would need to verify the supply pins for the preamp.

Author:	E123 [ May 2nd, 2026, 17:08 ]
Post subject:	Re: WD SAS 2TB
Quote: Also, please dump the ROM. We will need the adaptives. For what purposes do you need a ROM? What are you going to do with adaptives? Do you know how to convert the service area from Arch7 to traditional ROYL? All you need is a HDA from Arch7, a compatible SATA-ROYL PCB, a compatible “packet” and a working T-REX shell. I've heard that an important criterion for compatibility is the wedge/track ratio.

Author:	fzabkar [ May 2nd, 2026, 17:17 ]
Post subject:	Re: WD SAS 2TB
In that other thread I was able to find adaptives in the SAS ROM. I was hoping to import those SAS adaptives into a SATA ROM, and then use a SATA PCB and loader to gain access to the SAS SA and dump the tracks.

Author:	RAJOO [ May 3rd, 2026, 6:13 ]
Post subject:	Re: WD SAS 2TB
thanks to all

Author:	E123 [ May 3rd, 2026, 7:50 ]
Post subject:	Re: WD SAS 2TB
U12 - ?

Author:	fzabkar [ May 3rd, 2026, 14:10 ]
Post subject:	Re: WD SAS 2TB
RAJOO wrote: i think no ROM ic, the pcb is ROM-less https://hddpcb.eu/1760-large_default/pcb-western-digital-2060-771676-000.jpg

Author:	fzabkar [ May 5th, 2026, 15:42 ]
Post subject:	Re: WD SAS 2TB
I don't know how the terminal works on SAS PCBs, but if it works the same way as SATA, then choose a 2TB Green SATA family (if necessary) and dump the ROM via the terminal port using your terminal adaptor.

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