Please HELP.

[Zibri]

Hello! I have a WD My Book 14 TB Inside there is a WDC WD140EDGZ-11B1PA0

I was trying to change the block size to 4096.. I tried almost everything including sg3_utils with various commands. Today at a certain point my drive switched to 4096! Even if smartcts still reports 512/4096 for some reason, if I issue the command:

dev=$(sg_scan |grep "My Book"|cut -d' ' -f 1)
sz=$(sg_raw 2>/dev/null -r 40 $dev 9e 10 00 00 00 00 00 00 00 00 00 00 00 0c 00 00 -b|xxd -p)
nb=$((0x${sz:0:16}))
bs=$((0x${sz:17:23}))
echo HDD Size: $((nb*bs))
echo Block Size: $bs

Now it says 4096 ! Also opening the drive in HxD it says that there are 3'418'095'616 sectors!

Now I wish to set it back to 512! I read from other comments here that it's not possible if it is in the enclosure, but that's not true, because I changed it to 4096 while it was in the enclosure!

Please help.

[Zibri]

C:\Users\Zibri\Downloads\openSeaChest-refs-tags-v22.07-win-x64>openSeaChest_Erase.exe -d PD2 -i

openSeaChest_Erase - openSeaChest drive utilities - NVMe Enabled Copyright (c) 2014-2022 Seagate Technology LLC and/or its Affiliates, All Rights Reserved openSeaChest_Erase Version: 3.2.0-3_2_1 X86_64 Build Date: Jul 26 2022 Today: Sun Jan 22 07:25:52 2023 User: Zibri (admin)

\.\PhysicalDrive2 - My Book 25ED - XHG5AL6D - 1031 - ATA Vendor ID: WD Model Number: My Book 25ED Serial Number: **** Firmware Revision: 1031 World Wide Name: 5000CCA299C26D99 Drive Capacity (TB/TiB): 14.00/12.73 Temperature Data: Current Temperature (C): 45 Highest Temperature (C): 47 Lowest Temperature (C): 23 Power On Time: 1 day 9 hours Power On Hours: 33.00 MaxLBA: 3418095615 Native MaxLBA: Not Reported Logical Sector Size (B): 4096 Physical Sector Size (B): 4096 Sector Alignment: 0 Rotation Rate (RPM): 7200 Form Factor: 3.5" Last DST information: DST has never been run Long Drive Self Test Time: 1 day 3 hours 36 minutes Interface speed: Max Speed (Gb/s): 6.0 Negotiated Speed (Gb/s): 6.0 Annualized Workload Rate (TB/yr): 31.43 Total Bytes Read (GB): 114.82 Total Bytes Written (GB): 3.58 Encryption Support: Full Disk Encryption Cache Size (MiB): 512.00 Read Look-Ahead: Enabled Write Cache: Enabled SMART Status: Good ATA Security Information: Supported Firmware Download Support: Full, Segmented, Deferred, DMA Specifications Supported: ACS-2 ATA8-ACS ATA/ATAPI-7 ATA/ATAPI-6 ATA/ATAPI-5 ATA/ATAPI-4 ATA-3 ATA-2 SATA 3.2 SATA 3.1 SATA 3.0 SATA 2.6 SATA 2.5 SATA II: Extensions SATA 1.0a ATA8-AST SPC-4 USB-BOT SPC-4 SBC-3 SAT-3 Features Supported: TCG Sanitize SATA NCQ SATA NCQ Streaming SATA Rebuild Assist SATA Software Settings Preservation SATA In-Order Data Delivery SATA Device Initiated Power Management HPA Power Management Security SMART [Enabled] DCO 48bit Address PUIS APM GPL Streaming SMART Self-Test SMART Error Logging EPC [Enabled] Sense Data Reporting SCT Write Same SCT Error Recovery Control SCT Feature Control SCT Data Tables Host Logging Set Sector Configuration Storage Element Depopulation Adapter Information: Adapter Type: USB Vendor ID: 1058h Product ID: 25EDh Revision: 1031h

[Zibri]

And also: $ sg_raw -r 512 $dev 25 00 00 00 00 00 00 00 00 00 SCSI Status: Good

Received 8 bytes of data: 00 cb bb ff ff 00 00 10 00 ........

read capacity command says: CBBBFFFF = 3418095615 blocks and 1000 = 4096 bytes per block.

[pig1800]

I don't have such disk and I can't offer any help. This program is supposed to work over direct SATA connection, because it is using ATA Pass-Through function provided by Windows, and I made this program because I want do all the work under Windows. You are using Linux, and using USB, and it's not a WD DC drive, please don't make such issue because it's nothing related to my program.

[Zibri]

Perfect... it also explains the origin of your nickname. Anyway, not thanks to you I solved the problem.