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Undock with connected USB Hard Drives
Undock with connected USB Hard Drives
Seems to be several opinions on this as I Google, so thought to ask you all here.
Lenovo P51S with Ultradock. Two USB hard drives attached to the dock. Both set for "Quick Removal" in Device Manager.
DO I need to "safely remove" these drives before hot undocking and docking?
Appreciate your thoughts.
Lenovo P51S with Ultradock. Two USB hard drives attached to the dock. Both set for "Quick Removal" in Device Manager.
DO I need to "safely remove" these drives before hot undocking and docking?
Appreciate your thoughts.
~Bob
Re: Undock with connected USB Hard Drives
You never actually "need" to "safely remove" any USB devices on modern operating systems. Doing so merely "guarantees" that there will be no data loss, because it will force-flush all pending operations. "Optimize for quick removal", as far as I remember, disable write caching, so the chance of data loss is already diminished.
My rule of thumb with USB devices is to give them 5-10 seconds after any transfers are completed before disconnecting them - this should guarantee that things have settled.
Of course, if you set up you drives for ongoing background backup operations, you don't really know when a transfer is in progress; in this case, I would recommend using the "safe removal".
My rule of thumb with USB devices is to give them 5-10 seconds after any transfers are completed before disconnecting them - this should guarantee that things have settled.
Of course, if you set up you drives for ongoing background backup operations, you don't really know when a transfer is in progress; in this case, I would recommend using the "safe removal".
Thinkpad 25 (20K7), T490 (20N3), Yoga 14 (20FY), T430s (IPS FHD + Classic Keyboard), X220 4291-4BG
X61 7673-V2V, T60 2007-QPG, T42 2373-F7G, X32 (IPS Screen), A31p w/ Ultrabay Numpad
X61 7673-V2V, T60 2007-QPG, T42 2373-F7G, X32 (IPS Screen), A31p w/ Ultrabay Numpad
Re: Undock with connected USB Hard Drives
Thanks. I am finding even a bit stranger. Unless i am missing something, to safely remove when docked you still need to disconnect the USB 3.0 cable and do one at a time. Its not like a direct connection to the computer. If I could "safely remove" without physically detaching cables I would try. For now, I think I have to test an undock and redock without and hope I don't lose any data. Drives are usually idle and I am aware when they are being used.
~Bob
Re: Undock with connected USB Hard Drives
Did not quite work as hoped.
Undock, no issues. Both drives were idle.
Redocking found only the second drive and Windows said a USB device could not be recognized. I unplugged it, replugged and found and working.
Any idea why that would happen?
Undock, no issues. Both drives were idle.
Redocking found only the second drive and Windows said a USB device could not be recognized. I unplugged it, replugged and found and working.
Any idea why that would happen?
~Bob
Re: Undock with connected USB Hard Drives
Seems the USB Root Controller may have powered down on battery. Changed setting and checking that now. Makes sense if so.
~Bob
Re: Undock with connected USB Hard Drives
Got it. Loose USB 3.0 port on the docking station. Different port works fine.
~Bob
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