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Date: Thu, 13 Apr 2023 13:43:32 +0200
From: Kurt Jaeger <pi@freebsd.org>
To: egoitz@ramattack.net
Cc: Freebsd fs <freebsd-fs@freebsd.org>,
	Freebsd hackers <freebsd-hackers@freebsd.org>,
	freebsd-hardware@freebsd.org
Subject: Re: M2 NVME support
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Hi!

> We are in the process of buying new hardware for use with FreeBSD and
> ZFS. We are planning whether to buy M2 NVME disks or just SATA SSD disks
> (probably Samsung PM* ones). How is you experience with them?

One box with two NVMe (my packet-builder host), running CURRENT.

Model Number:                       Samsung SSD 970 PRO 1TB

Works fine, no problems. I have not measured throughput,
but I guess NVMe is faster than SSD, due to the SATA bottleneck etc.

Several boxes with SSD Sata (mostly Samsung SSD 850/960 and some
with Intel S4510/S4610/S4500/S4600 Series SSDs), all work fine.

There were issues with Samsung SSDs and AMD EPYC 3251 CPUs.
That's when we brought in the Intel SSDs...

> Do you recommend one over the another?. Is perhaps better support from
> some of them from a specificic version to newer?.
> Or do they perhaps work better
> with some specific disk controller?. 

-- 
pi@FreeBSD.org         +49 171 3101372                  Now what ?