strange block size reported in truenas core for samsung 980 1TB

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TRACKER

Active Member
Jan 14, 2019
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Hello STH folks,

Few months ago i've build DIY NAS using old PC case, xeon cpu and ram, which i had left from other projects.
The hardware itself is pretty old (sandy bridge, DDR3, etc. :)) but it does the job for me.
I have three NVMe drives Samsung - 960 EVO 1TB, 970 EVO Plus 1TB and 980 1TB for storing VMs on it (i use it for iscsi on ESXi) - no raidz, just regular pool from striped disks.
But Samsung 980 is being reported with 16KB native sectors, which looks really odd.
Is there anyone there who can shed some light on that, because i was not able to find 16KB block size anywhere in that drive specs (more details below).

Thanks a lot in advance to anyone who could give some hints!


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TRACKER

Active Member
Jan 14, 2019
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28
Just for info on the issue - after upgrading Truenas Core 12 U8 to 13 U1.1 issue is gone, alert is no longer reported
 

i386

Well-Known Member
Mar 18, 2016
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Is there anyone there who can shed some light on that, because i was not able to find 16KB block size anywhere in that drive specs (more details below).
that's probably the page size that the ssd uses. not sure why this information is shown there...