Possible no go usb sticks for DL380e Gen8
PNY Attaché 4 32 GB USB3 - runs extremely slow and fails occasionally
Kingston DT50/16GB USB3 - causes panic errors, thats before instalation. If you do manage to get it running most likely it will fail after few reboots, that is what happened to me.
SanDisk SDCZ50-016G-FFP 16 GB Cruzer Blade USB 2.0 - seems to be working so far.