LU is resource provisioned

[tcpluess]

Hi,
I have another SSD question.

I got a couple of very good and nice HGST HUSMM1640 drives. They show the following in smartctl:

=== START OF INFORMATION SECTION ===
Vendor:               HITACHI
Product:              HUSMM144 EMC400
Revision:             C360
Compliance:           SPC-4
User Capacity:        400,000,000,000 bytes [400 GB]
Logical block size:   4096 bytes
LU is resource provisioned, LBPRZ=1     <----- what is this??
Rotation Rate:        Solid State Device
Form Factor:          2.5 inches
Device type:          disk
Transport protocol:   SAS (SPL-4)
Local Time is:        Sun May 26 18:42:06 2024 CEST
SMART support is:     Available - device has SMART capability.
SMART support is:     Enabled
Temperature Warning:  Disabled or Not Supported

all my SAS SSDs I have so far show here "LU is fully provisioned" and now I got one that is "resource provisioned". Very weird; also I can see that it is slightly smaller than 400GB.
I tried to reformat the disk, but the "LU is resource provisioned" stays as-is.
I searched quite a bit about this LBPRZ=1 thing and apparently, it has something to to how the SSD deals with blocks that are trimmed.
However, I wonder, can I still make the SSD "fully provisioned" ?

For example, one other drive I have shows like so:

=== START OF INFORMATION SECTION ===
Vendor:               WDC
Product:              WUH721414AL5204
Revision:             C400
Compliance:           SPC-4
User Capacity:        14,000,519,643,136 bytes [14.0 TB]
Logical block size:   4096 bytes
LU is fully provisioned
Rotation Rate:        7200 rpm
Form Factor:          3.5 inches
Device type:          disk
Transport protocol:   SAS (SPL-4)
Local Time is:        Sun May 26 18:45:27 2024 CEST
SMART support is:     Available - device has SMART capability.
SMART support is:     Enabled
Temperature Warning:  Enabled

 

[Deleted member 100688]

It's a firmware thing because this drive uses a custom EMC firmware.

Vendor: HITACHI
Product: HUSMM144 EMC400

That's not the usual Hitachi/HGST SKU format. Your drive is probably a OEM HUSML4040ASS600 made for Dell/EMC storage systems. If you google HUSMM144, you'll also find drives with the CLAR400 suffix (instead of EMC400), probably in reference to the EMC Clariion family of storage systems.

You can ignore it or try other firmware versions, if you can even get them without a support contract. But I guess all official EMC firmwares have this LU provisioning anyway, so you'd need to crossflash to the stock Hitachi firmware, if that's even possible.

If you've tested the drive and found that it works fine in your system, I'd just ignore it.

 

[tcpluess]

The drive indeed works good. I am just curious
I also would like to use a stock firmware from HGST, but I cannot find one. Where are the HGST SSD Firmwares?

 

[Deleted member 100688]

I have no idea. hgst.com still exists, but the certificate expired in 2021. I don't know if they have the firmware on their site. I'm not visiting sites with expired certificates in principle. As HGST was bought by WD in 2012 (damn, time flies), it could be that the firmware for these drives, if it ever was publicly available, was just lost to the takeover and time. Not an uncommon thing.

But since you've already searched, it's probably neither there nor on the WD site. A creative solution would be finding someone who still has the necessary firmware tools and the update files or a retail version of these SSDs to dump the firmware from it and provide it for you. It's probably not worth the effort.

 

[tcpluess]

thanks. So if I cannot easily get rid of the "LU is resource provisioned", I'll keep it as-is.
Fortunately, the other SSDs I have seem to be very standard stock firmware, and with 35PB write endurance will certainly still last a long time, so I will never need to replace them. Only drawback is the other SSDs are SAS2 and the HUSMM EMC are sas3 with 12Gb/s.

But anyways. Thanks a lot!