this post was submitted on 04 Oct 2025
40 points (97.6% liked)

Linux

9720 readers
230 users here now

A community for everything relating to the GNU/Linux operating system (except the memes!)

Also, check out:

Original icon base courtesy of lewing@isc.tamu.edu and The GIMP

founded 2 years ago
MODERATORS
 

I bought a 2242 size m.2 SSD to use as lvm cache for an external DAS I'm working with. The drive is supposed to be 64GB, but when I pulled it up in gparted I found the below. (I created the partition to see what would happen.) If my calculations are correct, this drive is acting like a 1TB drive instead of a 64GB drive.

If my calculator is correct, a 64GB drive should be 59.6 GiB instead of 931.5 GiB.

So, would you trust this drive?

you are viewing a single comment's thread
view the rest of the comments
[–] Truscape@lemmy.blahaj.zone 40 points 1 week ago (4 children)

Hell no, that kind of behavior is what those aliexpress/wish knockoff drives do to fool the customer base stupid enough to trust the listing.

I would go so far as to say to get a refund and go to an actual store so you're not buying bootlegs.

[–] Unattributed@feddit.online 4 points 1 week ago (3 children)

I agree - I wouldn't trust it either...and, surprisingly, this one came from Amazon, and not some fly-by-night AliExpress store. (I rarely purchase something there without seeing reviews first...

But the other thing about this is that I checked out the website for the product. They are a company that specializes in enterprise and embedded products. I was pretty certain I had heard of them before in the enterprise world, which is why I purchased the drive.

The reason I bought this drive was because it specifies having a NAND cache on it (MLC, but beggars can't be choosers with drives like this), whereas the others I looked at didn't have (or at list didn't have specs which listed having) any form of NAND caching.

@nao@sh.itjust.works - thanks f or the pointer to f3 -- I'll grab it and check the drive before I return it.

[–] Unattributed@feddit.online 6 points 1 week ago

Okay - wild... The results of f3probe:

Good news: The device `/dev/sda' is the real thing

Device geometry: Usable size: 931.51 GB (1953525168 blocks) Announced size: 931.51 GB (1953525168 blocks) Module: 1.00 TB (2^40 Bytes) Approximate cache size: 0.00 Byte (0 blocks), need-reset=no Physical block size: 512.00 Byte (2^9 Bytes)

Probe time: 16.12s

Oops - misstated something before. This is an MLC NAND drive, the cache is supposed to be DDR4 DRAM. I suspect, however, this is a mis-labeled drive...

load more comments (2 replies)
load more comments (2 replies)