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Beware of some cheap USB 3 (not USB 2) thumdrives
Hi there
I have 2 older HP servers which have USB 3 ports as well as USB 2 ports but can only boot from the USB 2 ports. After OS is loaded then USB 3 ports work fine (that's the way these older HP servers work).
However if I put the USB 3 drive into a USB 2 port the server fails to see it on boot -- I needed to fix a configuration file on the server so I had a live OS on the usb drive.
the drive itself wasn't defective -- after I'd repaired the OS and booted normally the USB 3 drive was accessible via a USB 3 port.
With a standard USB 2 drive no problems -- so warning some USB 3 drives aren't necessarily compatible or will work (especially at boot time) in USB 2 ports.
I haven't had problems though with SSD's via SATA -->USB2 adapters or USB3 HDD's plugged into USB 2 ports (apart from the obvious loss in speed !!!). Seems just some models of thumb drives are fussy.
Cheers
jimbo