NVMe: was Building a Linux Computer?

Fri May 25 16:08:16 MST 2018

also interesting
http://www.thessdreview.com/daily-news/latest-buzz/highpoint-ssd7101a-1-nvme-raid-controller-review-samsung-toshiba-m-2-ssds-tested/

On Fri, May 25, 2018 at 4:05 PM, Stephen Partington <cryptworks at gmail.com>
wrote:

> 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
>
>

-- 
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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