476
edits
Locked HGST drives: Difference between revisions
520-byte sector changes
(added hardware notes) |
(520-byte sector changes) |
||
| (4 intermediate revisions by the same user not shown) | |||
|
These disks have three primary issues:
# They have Hitachi Vantara firmware [https://www.reddit.com/r/homelabsales/comments/qazb88/pccan_huc101212css600_12tb_10k_sas_6g_25_drives/hh6frb5/] that locks them to Hitachi VSP systems and doesn't let them work with normal servers.
# They have a lock preventing them from being reflashed with the Dell [https://www.dell.com/support/home/en-au/drivers/driversdetails?driverId=PJ9CD] firmware that would allow them to be used in generic systems.
== Problem 1: (520-byte sectors) ==
This is a very common problem with decommissioned enterprise SAS drives and also typically very easy to fix.
All you need is a "true" HBA in the server that is reformatting the disks
Dell PERC cards and HP Smart Array controllers cannot communicate with 520-byte sector disks whatsoever, even when put into "HBA mode".
The cards inside the [[Servers|Kurisu and Okabe]] servers have been flashed to "IT mode", as their PERC cards were old enough to be flashed using [https://fohdeesha.com/docs/perc.html a script]).▼
▲The cards inside the [[Servers|Kurisu and Okabe]] servers have been flashed
The sector size of a disk can be reformatted to 512 bytes using <code>sg3utils</code> with the command below:
<code>sg_format -v --format --size=512 --six /dev/sgX</code>
Of note, needing to format with the ten-byte variant of <code>
* Netapp needs ten-byte
* Our HGST drives should need six-byte (based on a comment from someone in a ServeTheHome thread, find the link for this)
== Problem 2: (Hitachi VSP firmware) ==
The primary issue with these drives is the firmware only allows them to work with Hitachi VSP systems.
* They will experience I/O errors when used on a regular system, even when reformatted to 512-byte sectors.
* Apparently it is related to the firmware only accepting <code>SCSI_WRITE_WITH_VERIFY</code> commands [https://
These exact physical drives are also sold as OEM variants that work in generic systems without issue.
* The only difference between our drives and those drives is the firmware.
* It should be possible to put OEM firmware onto the disks to allow them to work in our servers. (this leads into problem 3)
== Problem 3: (Firmware lock) ==
In addition to the previous problem, the drives also have a lock that prevents rewriting the firmware.
* They require a specific command be sent before they will allow overwriting the firmware.
=== Russian dude (WD Niagara) ===
There is a Russian dude who, for the price of ~$10/drive, will RDP into a Windows environment and flash the drives for you. [https://forum.hddguru.com/viewtopic.php?f=22&t=39927&sid=121a6e12d2d1fdaf816fe00eedac1745]
He runs a custom script he made that uses WD Niagara (an internal Western Digital tool intended for OEMs like Dell/HP) to unlock the drives, then uses Niagara's built-in "firmware download" to flash the firmware.
He has uploaded a video of the process to YouTube [https://www.youtube.com/watch?v=mAhS_sk3wKE]
If we had the money, this would be the easiest route to solve the problem. However, it'd make more sense to just buy new drives.
=== Hydata SCSITools ===
According to a Chinese dude who paid for Hydata SCSITools in another ServeTheHome thread, this program can also send the command to unlock the drives and flash the firmware.
A SCSITools license is $2800. Same as with the Russian dude, at that price it makes more sense to buy different drives.
* SartenX recommended asking them for a free license as students, I seriously doubt they'd give us one though.
Poking at the Windows program, the check for a license key seems really basic.
Smooth L7228: Drive Spindle controller?▼
* It just pulls in <code>hasp_windows_102966.dll</code> which is the Sentinel HASP (Hardware Against Software Piracy) all-in-one check that looks for a valid USB hardware key plugged into the computer.
[https://www.ariat-tech.com/parts/samsung-semiconductor/K4T51163QJ-BCE7 Samsung K4T51163QJ-BCF8]: DDR2 memory▼
* I doubt fiddling with Sentinel HASP would be easy, it has checks for VMs, emulated dongles, and even WINE for some reason
* However, the SCSITools binary itself could probably be modded to ignore the HASP check
=== Hardware ===
LSI TNNKU873 BJR12034 - microcontroller▼
We also considered flashing the drives via the hardware, with a Pomona SOIP8 clip (SOIP8 is the same form-factor as SOP8)
There are pictures of the mainboard in this HDDGuru thread [https://forum.hddguru.com/viewtopic.php?p=292187]
MAXIC 25U40325 M1-126▼
We identified the following chips on the drive's mainboard:
# Smooth L7228
▲# [https://www.ariat-tech.com/parts/samsung-semiconductor/K4T51163QJ-BCE7 Samsung K4T51163QJ-BCF8]
## DDR2 memory
## Microcontroller
▲# MAXIC 25U40325 M1-126
## SOP8 ROM (this is the big one)
Apparently only disk-specific calibration information is stored on the ROM and not the actual firmware.
^ (Josh found a forum post from someone trying what we planned, and came to this conclusion. Josh plz post link here)
So the hardware route is a dead-end :(
__FORCETOC__
▲https://www.reddit.com/r/DataHoarder/comments/7raoz8/firmware_for_hgst_10k_sas_huc109090css600/
__NOEDITSECTION__
| |||