Samsung SSD PM1643 3.8TB SAS 12Gb/s MZ-ILT3T8A 2.5" @ $289.98

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jhartbarger

Member
Jan 5, 2022
66
78
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So I finally managed to get the disk formatted to 512 with in an external enclosure, and they seem fine there (and 0% usage on them, so great), but they still fail to be recognized by my raid card! Could it be they are incompatible with 12Gbs cards?
The bizarre thing is that megacli still claim it is 520 sectors, while, it isn't it was formated (and verified) in the other enclosure... SO my guess is that, it's 'guessing'...

w Size: 0 KB [0x0 Sectors]
Non Coerced Size: 0 KB [0x0 Sectors]
Coerced Size: 0 KB [0x0 Sectors]
Sector Size: 520
Logical Sector Size: 520
Physical Sector Size: 4160
Firmware state: Unconfigured(bad)
Device Firmware Level: EQPC
Shield Counter: 0
Successful diagnostics completion on : N/A
SAS Address(0): 0x5002538a06a725e2
SAS Address(1): 0x0
Connected Port Number: 5(path0)
Inquiry Data: SAMSUNG P1633N38 EMC3840EQPCNZNA0HA02469
FDE Capable: Not Capable
FDE Enable: Disable
Secured: Unsecured
Locked: Unlocked
Needs EKM Attention: No
Foreign State: None
Device Speed: Unknown
Link Speed: Unknown
Media Type: Hard Disk Device
Drive: Not Supported
Drive Temperature :34C (93.20 F)
PI Eligibility: No
Drive is formatted for PI information: No
PI: No PI
Port-0 :
Port status: Active
Port's Linkspeed: Unknown
Port-1 :
Port status: Active
Port's Linkspeed: Unknown
Drive has flagged a S.M.A.R.T alert : No
These are DELL/EMC drives so you will need some sort of NON-DELL HBA adapter because DELL uses firmware locks to prevent certain firmware from functioning on certain HBA's. An example is trying to use a drive designed for a storage array in a PowerEdge server or vice versa just wont work and the only other options you have is to reflash the firmware on the drives to OEM firmware which isn't always possible or reflash the DELL HBA with OEM Broadcom firmware.
 

Jonasz

Member
Sep 3, 2023
34
5
8
rmatted to 512 before firmware update.
Found it on the internet, but I honestly have no idea how to flash it. I know it's originally designed to be used from Netapp ONTAP, which most of us obviously don't have. sg_write_buffer seems like it could work, but I'm not sure which mode to use and if the .LOD file needs to be modified at all. There's lots of potential info on the hddguru forums, but I don't have time to dig into it now.
is this form pm1643a? Thanks
 

Jonasz

Member
Sep 3, 2023
34
5
8
Hi everyone, I hope that someone is still reading this thread. I have got a bunch of these drives from a previous DDN chassis.

they are all pm1643a and have GXA0 FW.

I have a BC 9400i HBA and all disks are in Jbod mode.

Could someone help in guiding me to the appropriate fw file and update procedure? I want to use them in a cL2200 or dl380g10 chassis.

Thanks
 
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KevinM123

New Member
Sep 17, 2025
3
0
1
Dont suppose someone could post the most recent all.zip file up somewhere, netapp are being a pain to get a copy, and I would like to flash to NA55 for this disk,
 
Last edited:

EasyRhino

Well-Known Member
Aug 6, 2019
667
561
93
Dont suppose someone could post the most recent all.zip file up somewhere, netapp are being a pain to get a copy, and I would like to flash to NA55 for this disk,
Ha, I also could use a copy of that netapp all.zip to possibly resuscitate an old toshiba drive with a 32k hour firmware bug..

If someone has the firmware file but don't have a place to upload it, PM me and I could try to rig an upload location.
 

KevinM123

New Member
Sep 17, 2025
3
0
1
Here you go, this is the full pack


On linux you can punt the firmware into the drive using

sg_write_buffer -b 4k -m dmc_offs_save -I FILE.LOD -v /dev/sdx

sg_write_buffer can on debian /ubuntu be found in the sg3-utils package.