NVMe is in the title of the thread, but actually if you are not running NVMe speeds (2GB/s and such), but only SATAIII or even USB speeds then it definitely won't be hot. Actually I wouldn't even call your stick NVMe, it's an SSD drive.
On Mon, May 24, 2021 at 3:50 PM Curt Lundgren <[email protected]> wrote: > My drive is in a thin extruded aluminum case and is seldom more than just > a bit warm to the touch. I'm not doing anything on this computer that is > particularly filesystem-intensive. It's been plugged directly into the Pi > and has had uptimes of three days. I've never seen the little 'lightning' > icon come on that might indicate a sag in power. The Pi is powered by a 3 > amp USB C power supply, and that seems to be handling the load quite well. > The highest transfer speed I've seen on reads is about 275 MB/sec., far > below the actual capability of the NVMe stick itself. > > On Mon, May 24, 2021 at 4:24 PM Csaba Toth <[email protected]> > wrote: > >> Especially high speed NVMe SSD drives can dissipate a lot of heat and >> that's just part of the energy they consume. Modern laptop designs have >> heat conducting foams lay on top of the chips of the NVMe and spread that >> heat to a larger area for dissipation. I can easily imagine the Pi may not >> handle that well. >> >> On Sat, May 15, 2021 at 2:32 PM Howard White <[email protected]> wrote: >> >>> Curt, >>> >>> The video I listed indicates that some NVMe drives draw more power than >>> the Pi hardware may provide. >>> >>> What I have looked at but not yet endeavored is booting / file serving >>> the Pi via PXE and NFS. I've printed some web searches out but haven't >>> gotten past that point. >>> >>> A potential topic for a meeting some time? >>> >>> Howard >>> >>> On 5/15/21 12:33 PM, Curt Lundgren wrote: >>> > Thanks Howard, I have been following Jeff Geerling's great videos, and >>> > the Mirko board is certainly packed with features. The part I'm >>> having >>> > trouble with is why the Pi boots and appears to run quite normally, >>> for >>> > 10 - 20 minutes, then just stops accessing the NVMe drive and hangs. >>> If >>> > I'm streaming music, it continues to stream - but nothing else works. >>> I >>> > don't think it's a thermal issue, because if I unplug power and plug >>> it >>> > right back in, the Pi boots right up again. >>> > >>> > Silly me for thinking this would be something that 'just works…' >>> > >>> > On Sat, May 15, 2021 at 10:13 AM Howard White <[email protected] >>> > <mailto:[email protected]>> wrote: >>> > >>> > Curt, >>> > >>> > Sorry I'm slow to respond. I also struggle with RPi and MicroSD >>> media. >>> > Here is a YouTube with some info about NVMe kit: >>> > >>> > <https://www.youtube.com/watch?v=DZMF1n75Km0 >>> > <https://www.youtube.com/watch?v=DZMF1n75Km0>> >>> > >>> > Howard >>> > >>> > On 5/10/21 4:38 PM, Curt Lundgren wrote: >>> > > I've set up a Pi 4 computer with 8 GB of RAM and a pair of 1080P >>> > > displays as a second place to sit. No Email, no chats of any >>> kind, >>> > > rather peaceful, actually. It's running 64-bit Ubuntu, and >>> > except for >>> > > an occasional non-fatal complaint from one application or >>> > another, it >>> > > runs rather well. >>> > > >>> > > It's booting from a 32 GB high-endurance micro SD. The problem >>> I've >>> > > observed with RPi computers in the past is that they destroy >>> > their boot >>> > > media. Most, if not all, micro SD cards do not have wear >>> > leveling, and >>> > > so the constant logging and other activity eventually 'wears a >>> > hole' in >>> > > the media and it fails. This didn't keep my original >>> single-core >>> > 700 >>> > > MHz Pi from setting a personal runtime record of 1503 days, but >>> > it would >>> > > not boot after power was restored. Added a new high-endurance >>> > micro SD >>> > > card to it, and it came right back up. >>> > > >>> > > Back in the Watkins days we were using Pi3 computers for door >>> access >>> > > control. Everything was rock-solid reliable - until the boot >>> media >>> > > would fail. That's when I hit on the idea of using the >>> > high-endurance >>> > > cards. I've never had one of those fail, knock on wood. >>> > > >>> > > I still like the idea of wear leveling, so I bought a 500 GB >>> NVMe >>> > drive >>> > > and a USB 3+ enclosure. It's bloody fast when connected to a >>> Mac >>> > > laptop, over 900 MB/sec both read and write. I copied the >>> Ubuntu >>> > boot >>> > > image onto it and plugged it into the PI4. I did have to flash >>> > the Pi >>> > > firmware so it will boot either from an SD card or external USB >>> > media. >>> > > The Pi boots up and runs beautifully - for 10 to 20 minutes, >>> then it >>> > > just hangs. Power cycle and it's good for another 10 - 20 >>> minutes. >>> > > >>> > > Is it a power issue? I have a spare USB 3.0 powered hub, so I >>> > plugged >>> > > the new drive into the hub and the hub into the Pi. It looks >>> silly, >>> > > with the hub being substantially larger than the computer, but >>> it >>> > boots >>> > > up, runs beautifully for 10 - 20 minutes - and hangs. I don't >>> > think the >>> > > trouble can be blamed on power supply issues, and I'm stumped as >>> > to what >>> > > else might be going on. I'm back on the high-endurance micro SD >>> > card, >>> > > but would like very much to have the added capacity and wear >>> > leveling >>> > > the SSD offers. >>> > > >>> > > Speed through the hub was dismal at about 32 MB/sec., pretty >>> much >>> > USB >>> > > 2.0 performance, but that would have been OK if the Pi would run >>> > and not >>> > > lock up. >>> > > >>> > > Does anyone have any thoughts as to what might be going on here? >>> > > >>> > > Thanks >>> > > Curt Lundgren >>> > > >>> > > -- >>> > > -- >>> > > You received this message because you are subscribed to the >>> Google >>> > > Groups "NLUG" group. >>> > > To post to this group, send email to [email protected] >>> > <mailto:[email protected]> >>> > > To unsubscribe from this group, send email to >>> > > [email protected] >>> > <mailto:nlug-talk%[email protected]> >>> > > For more options, visit this group at >>> > > http://groups.google.com/group/nlug-talk?hl=en >>> > <http://groups.google.com/group/nlug-talk?hl=en> 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https://groups.google.com/d/msgid/nlug-talk/CADPPtrqCTBaYf4g2BU0g6M7nwg9da-qsXSBAcd72kkZrZ7sVhA%40mail.gmail.com?utm_medium=email&utm_source=footer >>> >>. >>> > >>> > -- >>> > -- >>> > You received this message because you are subscribed to the Google >>> > Groups "NLUG" group. >>> > To post to this group, send email to [email protected] >>> > <mailto:[email protected]> >>> > To unsubscribe from this group, send email to >>> > [email protected] >>> > <mailto:nlug-talk%[email protected]> >>> > For more options, visit this group at >>> > http://groups.google.com/group/nlug-talk?hl=en >>> > <http://groups.google.com/group/nlug-talk?hl=en> >>> > >>> > --- >>> > You received this message because you are subscribed to the Google >>> > Groups "NLUG" group. >>> > To unsubscribe from this group and stop receiving emails from it, >>> > send an email to [email protected] >>> > <mailto:nlug-talk%[email protected]>. >>> > To view this discussion on the web visit >>> > >>> 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