How to enable drive heads in WD Marvel? (No data recovery)

[flowersun]

Hello guys! I have a 6TB WD Red HDD that shows only heads 0 and 1 as active, for a total of 1.2TB at 1/5th of the Cylinders available. What would be the safe procedure to enable back some of the heads, resize it, and test if any could still be used? I already have a license of WD Marvel BTW . There is no data to be recovered on the drive, so no worries there ! Thanks guys!

[flowersun]

Just to be clear, I have no experience with this program ! So if you could go into a bit more detail, explaining the steps, I would be very grateful ! I do have a lot of experience in EE and Linux, so I shouldn't be too much of a lost cause I hope.

[fzabkar]

Can you upload the drive's ROM and SA resources?

[flowersun]

You mean like this? Thanks, btw

Attachments

Flash.zip

ROM - Read ROM

(272.74 KiB) Downloaded 874 times

SA Modules Operations Screenshot

[fzabkar]

That's the ROM. Show us the rest of the firmware.

[flowersun]

Ah right, I should have posted that earlier . There's a lot of data here, and it's where I learned of the physical/used head count.

Attachments

WDC WD12EFRX-68MYMN1 WD-WX21D15A77F8 Rembrandt (Royl) 03.0AG 2021-01-31 15-35-09.zip

WDMarv restore point

(19.17 MiB) Downloaded 675 times

[fzabkar]

Code:

Analysing flash.bin ...

Searching for LDSCs and verifying PCMBlocks ...

LDSC   LDSC    Att   PCMBlock          RAM         size      PCMBlk CS
Start  ID CS        Start -  End     address     RAM / ROM    Exp/Act
---------------------------------------------------------------------------
    0  5A 3E   04     120 -  1DC7      4B688     1CA4  1CA4  000B5629 000B5629 OK
   20  01 B8   0C    1DC8 -  213C   24000000      374   374    57   57   OK
   40  02 BC   01    213D -  760D          0 c   6BF4  54D0    A0   A0   OK
   60  03 94   01    760E -  7DE6       D9F0 c    9C8   7D8    99   99   OK
   80  04 D7   03    7DE7 -  A627      402E0 c   32D0  2840    0E   0E   OK
   A0  05 96   03    A628 -  A8B8   601E2A00 c    43C   290    D5   D5   OK
   C0  06 3D   01    A8B9 - 1C52D   382CD800 c  17A48 11C74    31   31   OK
   E0  07 55   11   1C52E - 201EE   30080000 c   5114  3CC0    90   90   OK
  100  08 15   01   201EF - 43B73   38000230 c  32750 23984    46   46   OK

LDSC   = PM Loader Config String (32 bytes)
ID     = ID byte of LDSC (byte #0)
CS     = Checksum byte or word
Att    = Attributes
PCMBlk = Program Code Memory Block
Exp    = Expected checksum for PCMBLock
Act    = Actual checksum for PCMBLock
c      = compressed PCMBlock
size   = size of decompressed (in RAM) and compressed (in ROM) PCMBlock in bytes


ROYL directory module 0x000B found at 0xFFEB6

Active directory flag = 0x03

Identifying SA regions ...

Reg#  Reg size    Reg loc
----------------------------
0x00  0x00083630  0x00000000
0x01  0x00083630  0x0009B000

Verifying ROYL modules ...

ID          Size (bytes)         Address    Checksum
dir   hdr    dir       hdr
-----------------------------------------------------
0001  N/A    00004000  N/A        0008235C             N/A
000A  OK     0000004E  00000200   000FF000   00000000  OK
000B  OK     0000013B  00000200   000FFEB6   00000000  OK
020B  OK     0000013B  00000200   000FEEB6   00000000  OK
0181  OK     00000BA0  00000C00   000FD400   00000000  OK
0030  OK     00000400  OK         000FD000   00000000  OK
0047  OK     00000800  OK         000FF6B6   00000000  OK
000D  OK     00000108  00000200   000FF04E   00000000  OK
0303  OK     0000C000  00000200   000FF156   FF00FFFC  BAD
004F  OK     00000500  00000600   000FF1B6   00000000  OK

ROYL directory module 0x020B found at 0xFEEB6

Active directory flag = 0x02

Identifying SA regions ...

Reg#  Reg size    Reg loc
----------------------------
0x00  0x00083630  0x00000000
0x01  0x00083630  0x0009B000

Verifying ROYL modules ...

ID          Size (bytes)         Address    Checksum
dir   hdr    dir       hdr
-----------------------------------------------------
0001  N/A    00004000  N/A        0008235C             N/A
000A  OK     0000004E  00000200   000FE000   00000000  OK
000B  OK     0000013B  00000200   000FFEB6   00000000  OK
020B  OK     0000013B  00000200   000FEEB6   00000000  OK
0181  OK     00000BA0  00000C00   000FD400   00000000  OK
0030  OK     00000400  OK         000FD000   00000000  OK
0047  OK     00000800  OK         000FE6B6   00000000  OK
000D  OK     00000108  00000200   000FE04E   00000000  OK
0303  FFFF   0000C000  01FFFE00   000FE156   FE04FFDA  BAD
004F  OK     00000500  00000600   000FE1B6   00000000  OK

dir  -  Module ID/Size as reported in directory module (0x20B or 0x0B)
hdr  -  Module ID/Size as reported in module's header
N/A  -  Not Applicable
BAD  -  Module has invalid checksum. This may be due to non-existent module.

ROM modules saved to Flash_00\000Bmods and Flash_00\020Bmods

Active directory is 0x0B

Analysing active 0x0A module ...

Head map checksum (Expected / Actual) = 0x0000 / 0x0000 - OK
Number of heads (physical / in use) = 10/2
Head map #1 = 0x0003 / 0b0000000000000011    <---------------
Head map #2 = 0x03FF / 0b0000001111111111    <---------------

DCM = | R | C X J C Q D D
      : : : : : : : : : :
      : : : : : : : : : unknown
      : : : : : : : : top VCM
      : : : : : : : ACA
      : : : : : : bottom VCM
      : : : : : HSA
      : : : : media
      : : : preamp
      : : latch
      : base
      spindle motor

Analysing active 0x0D module ...

Firmware Version = 82.00A82
World Wide Name = 50014EE2612E4AE8
Model Number = WDC WD12EFRX-68MYMN1                   
Serial Number =                     


Analysing active 0x4F module ...

ROM version = 0003000A

Analysing active 0x47 module ...

Preamp values
-----------
0  0331445D
1  0435656A
2  00000000
3  00000000
4  00000000
5  00000000
6  00000000
7  00000000
8  00000000
9  00000000

Microjogs
-------
0  0000
1  0000
2  0A0A
3  0A0A
4  0A0A
5  0A0A
6  0A0A
7  0A0A
8  0A0A
9  0A0A

Head/Media DCM = JX

[flowersun]

The previous one was through WinAPI, this one I got through SATA/AHCI mode. I just figured out how to use it .

Attachments

WDC WD12EFRX-68MYMN1 WD-WX21D15A77F8 Rembrandt (Royl) 03.0AG 2021-02-02 19-37-44.zip

(19.28 MiB) Downloaded 896 times

[SimpleText]

has anyone had any success enabling and using the other areas on one of these? I will buy the software if it has worked for anyone. flowersun the SATA/AHCI mode is red/unselectable for me in the demo, is this just a limitation of the demo or is there something I am missing?