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for <gentoo-user@lists.gentoo.org>; Thu, 27 May 2021 17:09:11 -0500
Subject: Re: [gentoo-user] Qustions re Dell M.2 PCIe NVMe Solid State Drives
under Gentoo
To: gentoo-user@lists.gentoo.org
References: <YLAJg0W6JdoykbwI@waltdnes.org>
From: Grant Taylor <gtaylor@gentoo.tnetconsulting.net>
Organization: TNet Consulting
Message-ID: <588c3eeb-d792-5509-e05b-16ce4b21ebe2@spamtrap.tnetconsulting.net>
Date: Thu, 27 May 2021 16:09:17 -0600
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On 5/27/21 3:05 PM, Walter Dnes wrote:
> All current XPS models seem to have 256G or 512G M.2 PCIe NVMe Solid
> State drives in the base configuration. Questions...
>
> * do NVMe drives function well under Gentoo (driver issues, etc)?
I've not had any problems with them. They do show up as a different device:
/dev/nvme0n1p#
Where # is the partition number. I think /dev/nvme0 might be the first
NVMe controller as the only NVMe (card?) that I have is /dev/nvme0n1.
> * how long do they hold up (wear and tear)?
I've been using the inexpensive ~> cheap one that I have for more than
18 months. I'm using a partition on said NVMe as a cache for my ZFS
pool. I've not yet seen any symptoms of problems.
I will say, that you want to make sure the system has PCIe that's 3.0 or
better to take advantage of the full speed. -- My existing NVMe is in
a PCIe-16x slot to NVMe adapter card. It only uses 4x lanes, but the
other are physically occupied holding the card.
I'm building a new system, to replace the 5+ year old XPX w/ PCIe 2.0
that has the card and I'm replying from with a newer system with quite
similar, save for PCIe 3.0. The speed difference between the NVMe in
the systems is insane with the faster PCIe bus.
> * can I simply disable them if I run into problems?
That depends.
If they are used for part of the operating system, as in your boot /
root drive, then simply disabling them will be ... problematic. If
however, you are using it as a non-essential drive, or not using it at
all, then sure, you can disable it.
--
Grant. . . .
unix || die