Hi, there's been various discussions about USB 3 hard drives here and on the testers list so I thought I'd start a new dedicated thread.
I've acquired a Seagate Slim Drive USB 3 2TB drive for backup purposes which worked well with USB 2, peaking at about 19 MB/s.
Now I acquired this,
https://www.ebay.ca/itm/USB-C-PCI-E-Express-Card-USB-3-1-2-Port-Controller-Adapter-HUB/133124878295?hash=item1efedc6fd7:g:OCYAAOSwjm5dOpkd which showed up within 3 days in my mail. Unluckily the needed cables from a different supplier haven't shown up yet. So I lucked out and picked up a 6 foot USB C to USB A cable at London Drugs for $7 bucks, it's rated at 5Gb/s, USB 3 speed.
Testing by transferring an ArcaOS ISO using File Commander, I see speeds of 90-98 MB/s, under Linux, Using MC and an EXT4 partition, the speeds are about 100-110 MB/s for really big files with the odd really high peak. Seems pretty decent, at that testing with the Mozilla source tree (about 5GB's of mostly small files) it is still about 30 MB/s, speeding up for large files and slowing down for small files. It's actually faster then my SSD on a SATA 2 port and may be the fastest drive in my system.
Problems, I have a 1 TB JFS partition for backing up to. Given a power failure or system crash, chkdsk runs for hours before quitting with
JFS0101: CHKDSK Insufficient dynamic storage available for required workspace
(1,6). CHKDSK CANNOT CONTINUE.
I guess I'll repartition as even though after ejecting and remounting the drive seems fine, who knows.
The other problem is all attempts to benchmark with diskio or sysbench locks the system hard, requiring the big red button to reboot and that hours long chkdsk.
Copying files, using rsync and such seem to work fine.
I must say I'm impressed so far with the hard drive speed, unlike other reports. Not sure if due to the USB C controller or what.
Edit, USBTree reports,
USB driver version = 12.8
----- USB device tree ---------------------------------------------------------
DS 07f0=4ff8
Controller 0: USBXHCD$
Root Hub 0 (4 ports) 1B21:2142
Port 1: Device 0BC2:AC2D (MSD)-(SCSI)-(BO)(MSD)-(SCSI) SS Seagate RSS LLC
...