SSD HYPER CACHE

[FRANCOISGURTLER]

HELLO EVERYONE AND...HELP

I just added two 512 GB SSDs to my Terramaster F4-424 mounted with 4 6 GB hard drives in the hope of creating an Hyper cache. I emptied my disks and they are set up in RAID 5. In the hyper cache tab of TOS6, it is indicated 'hypercache not created' and all the tabs for creating are inactive (create, +); what should I do?

[HeliaWu]

Hello! Would you like to check the content in this link and see if it helps?
https://toshelp.terra-master.com/web/#/en/hyper_cache

[TMroy]

Make sure the SSD model is the one compatible, the SSD require M.2 NVMe 2280, and no all the brand and models are compatible..
Did you create any storage pool on your SSD? if yes, you need to delete them first.

By the way, do you want to say 6TB? not 6GB?

[tjb001]

I was having problems with setting hypercache on M2 NVMe drives. During an online support session, I was informaed by the tech that the drives need to be formatted in 4k (4096) LBA.

[TMzethar]

I was having problems with setting hypercache on M2 NVMe drives. During an online support session, I was informaed by the tech that the drives need to be formatted in 4k (4096) LBA.

If your SSD uses 512-byte or 4096-byte sectors, and the old hard disk drive (HDD) only supports 4096-byte sectors, it is recommended to back up your data first and replace it with a hard disk that supports both sector formats (most new mainstream hard disks are typically compatible with 512/4096-byte sectors).

[tjb001]

I think you misunderstand my question.

My hard drives are 4096 formatted and in use. The issue I was told is that the MVMe drives I am trying to use are 512 and should be formatted to 4096 to match the HDD's in use.

I am not having any luck formatting the NVMe drives from 51 to 4096 as I keep getting access denied, which I am told, is due to the firmware which I am not able to overcome. I guess I will have to try and find some NVMe drives that are already formatted to 4096.

Thanks,
Tim.

[TMnight]

Regarding the issue where you have repeatedly attempted to convert an NVMe hard drive from 512 to 4096 but have been denied access each time. Such sector size conversion is typically controlled by the hard drive manufacturer at the firmware level, and the NAS system itself cannot force modifications. Therefore, given this limitation, it is indeed impossible to resolve the issue through the system side.

[tjb001]

Just to confirm the following:

I have now reformatted my NVMe drive to 4096 and can confirm that the HyperCache creation now works.

I feel it would be good practive to mention this in your documentation to share with other TM users, it may save them time and effort.

[CursaYang]

Thank you for your feedback. I will pass this suggestion to the product team, who will evaluate whether to add information about hard disk sectors in the hypercache documentation.

[finbarr]

Just to confirm the following:

I have now reformatted my NVMe drive to 4096 and can confirm that the HyperCache creation now works.

I feel it would be good practive to mention this in your documentation to share with other TM users, it may save them time and effort.

I agree. This is exactly the procedure I'm looking to figure out. How do we convert the logical sector size of an NVMe from 512 to 4096 through the TOS 6 CLI?

And just to contradict the support response earlier - This is the logical and not physical sector size. This can be changed on my Kioxia NVMe drives, but the security features of TOS 6 (Ubuntu based I believe?) are blocking the Linux commands from modifying the sector size change.