Reset overprovisioning?

[jenksdrummer]

I thought I'd be smart and try overprovisioning an SSD, to which i want to remove that. I have a 240GB Intel SSD that by all accounts is showing up as a 200GB disk. This was set within FreeNAS/TrueNAS I think in version 10.

How do I go about resetting that?

 

[HoneyBadger]

You may be able to do this from within TrueNAS - I admit I haven't tried in some time.

Here we go, it was done using camcontrol in this example:

Proper sizing of SLOG and transaction group

I just removed my SLOG (200GB Intel S3700) from my pool reconfigured it as a 16GB device (using camcontrol HPA) and added it back to the pool using the GUI. I'll see if it makes a difference. camcontrol security ada0 -e camcontrol hpa #to view current HPA settings camcontrol hpa ada0 -s...

www.truenas.com

You may need to use both the -P and -s switches when setting the HPA though to make this stick through a reboot.

https://www.intel.com/content/dam/www/public/us/en/documents/white-papers/over-provisioning-nand-based-ssds-better-endurance-whitepaper.pdf

 

[jenksdrummer]

Seems neither of those utilities (intelmas , hdparm) is on Truenas, so still likely I need to pull the drive and unmuck it.

Thank you for the info/lead though :)

 

[HoneyBadger]

Seems neither of those utilities (intelmas , hdparm) is on Truenas, so still likely I need to pull the drive and unmuck it.

Thank you for the info/lead though :)

Just edited with a link to a camcontrol command. Try that first, but you'll likely need to power cycle the drive anyways.

 

[mav@]

On TrueNAS Core (soon to be ported to SCALE) there is `disk_resize` script, wrapping bunch of tools to resize SATA, SAS and NVMe HDDs/SSDs to desired capacity. `disk_resize adaX` without capacity specification should return specified device to full capacity, if it is indeed over-provisioned, not produced that way by manufacturer to ensure wear resistance.

PS: The tool wipes the device, so be careful what you point it to.

 

[jenksdrummer]

On TrueNAS Core (soon to be ported to SCALE) there is `disk_resize` script, wrapping bunch of tools to resize SATA, SAS and NVMe HDDs/SSDs to desired capacity. `disk_resize adaX` without capacity specification should return specified device to full capacity, if it is indeed over-provisioned, not produced that way by manufacturer to ensure wear resistance.

PS: The tool wipes the device, so be careful what you point it to.

Worked like a CHAMP. Thank you!!!! :)