On 01/03/2019 18:02, Jonathan Ryshpan wrote:
On Fri, 2019-03-01 at 07:02 -0500, Sam Varshavchik wrote:
Jonathan Ryshpan writes:
The latest drive is a replacement given to me by Seagate; they said that the
drive had failed and had to be replaced, which they did, since it was still
under warranty. It's not exactly new by refurbished. It started to beep after
being used for about 4 days.
Does anyone have an idea what's going on or how to prevent it?
The fact that this supposedly happens with drives from different
manufacturers suggests that the problem is not caused by the drives
themselves. How are you connecting these USB drives, into the system itself,
or via the USB hub. That's the only common factor, so that would be a far
more likely cause of this, and the physical proximity just leads you to
believe that it's coming from the USB drives.
The drives are connected directly to the computer via a USB link. I have
suspected that the problem
is related to my system, however Todd Chester in another reply to my
posting says that these cheap
drives are not to be trusted. I'm going to take his advice and build my
own box.
____
Having seen so many strange things with computers and power, I, like
many don't trust USB power to run a drive. A powered hub may be better.
I have a USB meter that can tell me the voltage and current being
delivered via a USB port. I have seen the voltage drop under load,
enough to cause devices to stutter from lack of current to keep them
running. Biggest villain is the cheap USB cables that cannot supply the
necessary current. Even within some computers. Something like this.
https://www.amazon.ca/Lysignal-Charger-Multimeter-Voltmeter-Detector/dp/B073WVT96B/ref=sr_1_5?keywords=usb+voltmeter&qid=1551561277&s=gateway&sr=8-5
I have USB hubs but they are all self powered. Again, many USB hubs
also have power blocks and cheap cables that still restrict the amount
of power to the hub.
Also, try to make sure that the backup are on their own USB controller.
Less chance of a device taking over the USB controller chip.
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