RE: NVMe: was Building a Linux Computer?

> Knowing my luck I'd lose that USB drive (I assume you mean a thumb
> drive, not a USB connected spinner). Am I correct that /boot on the
> thumb drive would slow the boot process, but everything after early
> boot would take place at NVMe speed? I'm not particularly choosy about
> boot speed. Go make a cup of tea.
>
> Thanks,
>
> SteveT
>
> On Fri, 25 May 2018 12:57:45 -0700
> Brian Cluff <brian@snaptek.com> wrote:
>
>> You can always get a physically very small USB drive and put /boot
>> and the boot block on that.  Then everything else can go on the NVMe.
>>
>> Brian Cluff
>>
>> On 05/25/2018 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@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@lists.phxlinux.org] On Behalf Of
>>>>> Steve Litt Sent: Tuesday, May 22, 2018 2:30 PM To:
>>>>> plug-discuss@lists.phxlinux.org Subject: NVMe: was Building a
>>>>> Linux Computer?
>>>>>
>>>>> On Tue, 22 May 2018 13:57:29 -0700
>>>>> Brian Cluff <brian@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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