NVMe: was Building a Linux Computer?

[Stephen Partington]

Now this is a potentially interesting idea.
https://www.frys.com/product/9304070

On Fri, May 25, 2018 at 3:44 PM, Eric Oyen <eric.oyen at icloud.com> wrote:

> at that point, I would simply install a really small SSD (something under
> 100 GB), have that do the boot handling and then setup to hand off to the
> NVMP drive. It seems simple enough. Hell, the USB boot idea works equally
> as well. Basically, anything that can allow you to use this new technology
> in your old hardware should be considered.
>
> I have a few ideas on some work arounds I would like to explore. Just no
> money to make them happen.
>
> -eric
>
> On May 25, 2018, at 12:17 PM, Steve Litt wrote:
>
> > Maybe you can get a rip-roaring machine, but how so if that post 2005
> > computer can't boot of NVMe? What do you do, take the UEFI info and
> > the /boot off another drive, and use the NVMe for / ? Or do you boot
> > off another drive, and then carve up the (assumedly small) NVMe
> > into /usr, /lib, /run ? Life gets a lot more complicated if the machine
> > can't boot the NVMe.
> >
> > SteveT
> >
> > On Wed, 23 May 2018 01:16:21 -0700
> > Eric Oyen <eric.oyen at icloud.com> wrote:
> >
> >> well, the beauty about the "add-in" cards is that you can use any
> >> PCI-e slot on just about any desktop that is newer than vintage 2005.
> >> YYou will end up with a rip-roaring fast machine. :)
> >>
> >> -eric
> >>
> >> On May 22, 2018, at 2:43 PM, Carruth, Rusty wrote:
> >>
> >>> Oohh!  Oohh!! Something I can answer :-)
> >>>
> >>> 1 - yes and no.  Yes, you can replace, but no, you (almost
> >>> certainly) need to get a PCIe card which converts PCIe on the
> >>> motherboard to NVMe on the ssd.  We have one of those at work, not
> >>> too expensive as I recall.
> >>>
> >>> 2 - You should be able to.  Don't know if that's implemented or not.
> >>>
> >>> 3 - /dev/nvme0n1 as an example.  So, for SATA, its /dev/sd<x>  for
> >>> nvme, you get a /dev/nvme0 and then you get /dev/nvme0n1 for the
> >>> actual drive, as I remember.  I don't remember what the partitions
> >>> turn up as, but I THINK they were /dev/nvme0n1p1 or something like
> >>> that.  A second NVMe drive would be /dev/nvme0n2 I think.
> >>>
> >>> 4 - it should.  Now, you MIGHT need some updated stuff, for example
> >>> smartctl  may or may not work with NVMe on your distro.  And you'll
> >>> probably need to download the nvme tool that gives you control sort
> >>> of like hdparm.  Using an 'old' distribution might be a problem
> >>> (for some value of 'old')
> >>>
> >>>
> >>>
> >>> -----Original Message-----
> >>> From: PLUG-discuss [mailto:plug-discuss-bounces at lists.phxlinux.org]
> >>> On Behalf Of Steve Litt Sent: Tuesday, May 22, 2018 2:30 PM
> >>> To: plug-discuss at lists.phxlinux.org
> >>> Subject: NVMe: was Building a Linux Computer?
> >>>
> >>> On Tue, 22 May 2018 13:57:29 -0700
> >>> Brian Cluff <brian at snaptek.com> wrote:
> >>>
> >>>> For me, I would get a system that can use a NVMe.  They are about
> >>>> the same price as an SSD, but make and SSD look extremely slow.
> >>>
> >>> This is the first I've heard of NVMe. I just read
> >>> https://en.wikipedia.org/wiki/NVM_Express , and now have some
> >>> questions:
> >>>
> >>> 1) Can I replace the spinning platter 2.5" hard disk in my 5 year
> >>> old laptop with an NVMe device? My research tells me an NVMe must
> >>> plug into a PCIe slot rather than a SATA slot.
> >>>
> >>> 2) Do you fstrim NVMe-hosted partitions the same way you do for SSD?
> >>>
> >>> 3) When you install an NVMe card in a PCIe slot, what device name
> >>> shows up? Is it sd-whatever, or something else?
> >>>
> >>> 4) If my desktop has a free PCIe slot, does that mean I can plug in
> >>> an NVIe drive and use it?
> >>>
> >>> Thanks,
> >>>
> >>> SteveT
> >>>
> >>> Steve Litt
> >>> June 2018 featured book: Twenty Eight Tales of Troubleshooting
> >>> http://www.troubleshooters.com/28
> >>>
> >>>
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-- 
A mouse trap, placed on top of your alarm clock, will prevent you from
rolling over and going back to sleep after you hit the snooze button.

Stephen
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