I’ve been playing around with the Jetson Nano you made me buy. I am looking either for a microSD card, that can actually do IOPS (seems so unlikely), or a USB stick, that actually delivers something like Intel Postville SDD performance, which is all the Nano will take anyway (nothing on those USB3 ports will go faster than about 140MB/s.
There is all kinds of crazy bandwidth available on USB and microSD, but I want IOPS, a SCSI or UASP command set with nice queues, trim/discard. I doubt that can be done on microSD, where capacity rules that little space, but on USB sticks or perhaps even better yet, USB2SATA that *should* be possible, right?
Could you guys have a look, do a report, or—in case I just missed it—provide a pointer?
Took a 64GB SanDisk Extreme V30/A1/UHS-1 from a smartphone that wasn’t paying attention and that does work kind-of. You have to enable swapping rather quickly when you run Cinnamon on a 4k screen and anything with a bit of I/O like compile jobs, quickly ties the Nano into a knot idling on wait-for-io. An ASmedia 2105 was a bit disappointing, because even if it was recognized as a SCSI device, it wouldn’t pass through trim/discard: Never a good thing on SSD and a real bummer, because the SanDisk microSD *will* trim.
If one has a computer with Thunderbolt 3 this in combination with a NVMe drive of choice sounds like an interesting alternative (Thunderbolt 3 M.2 NVMe Metal External case 40 Gbps): https://i-tec.cz/en/produkt/tb3mysafem2-2/
Should break away from the 10 Gbit/s limit of USB 3.1 Gen 2 which sure hampers the speed of a NVMe drive.
We’ve updated our terms. By continuing to use the site and/or by logging into your account, you agree to the Site’s updated Terms of Use and Privacy Policy.
3 Comments
Back to Article
abufrejoval - Sunday, April 7, 2019 - link
I’ve been playing around with the Jetson Nano you made me buy. I am looking either for a microSD card, that can actually do IOPS (seems so unlikely), or a USB stick, that actually delivers something like Intel Postville SDD performance, which is all the Nano will take anyway (nothing on those USB3 ports will go faster than about 140MB/s.There is all kinds of crazy bandwidth available on USB and microSD, but I want IOPS, a SCSI or UASP command set with nice queues, trim/discard. I doubt that can be done on microSD, where capacity rules that little space, but on USB sticks or perhaps even better yet, USB2SATA that *should* be possible, right?
Could you guys have a look, do a report, or—in case I just missed it—provide a pointer?
Took a 64GB SanDisk Extreme V30/A1/UHS-1 from a smartphone that wasn’t paying attention and that does work kind-of. You have to enable swapping rather quickly when you run Cinnamon on a 4k screen and anything with a bit of I/O like compile jobs, quickly ties the Nano into a knot idling on wait-for-io. An ASmedia 2105 was a bit disappointing, because even if it was recognized as a SCSI device, it wouldn’t pass through trim/discard: Never a good thing on SSD and a real bummer, because the SanDisk microSD *will* trim.
DougDolde - Monday, April 8, 2019 - link
So can you plug one into a Thunderbolt port with a USB-C cable?star-affinity - Tuesday, April 9, 2019 - link
If one has a computer with Thunderbolt 3 this in combination with a NVMe drive of choice sounds like an interesting alternative (Thunderbolt 3 M.2 NVMe Metal External case 40 Gbps): https://i-tec.cz/en/produkt/tb3mysafem2-2/Should break away from the 10 Gbit/s limit of USB 3.1 Gen 2 which sure hampers the speed of a NVMe drive.