On 9/6/2014 12:47 PM, Charles Lepple wrote:
On Sep 6, 2014, at 12:39 PM, Leslie Rhorer <[email protected]> wrote:
I made a number of hardware and software changes, including an upgrade to the
latest software versions for that distro (Debian Wheezy),
Can you be more specific about the changes?
Well, I did an automated upgrade (apt-get upgrade), I changed to a
multi-lane drive controller and RAID chassis, rather than using an eSATA
port with a Port Multiplier chassis.
Key variables:
* USB controller information (old and new hardware)
No changes. The UPS is plugged into one of the rear USB ports on the
motherboard, which was not changed.
* Kernel versions, for both working and non-working setups
Well, I'm not absolutely certain, but I don't think the kernel was
upgraded by the automatic process. The current kernel version is
3.2.0-4-amd64. I am going to take the server down for further
maintenance in a few hours, and I have a hard drive with Debian Jessie
on it. I can try booting from that to see if it makes a difference.
You might also want to try finding an older USB hub to put between the UPS and
the motherboard. I wouldn't recommend this for production use, but it can be
useful to isolate the problem. We have had a few reports of issues along these
lines, but with no resolution (or at least, nobody has confirmed on the lists).
I don't have one lying around. Motherboards the last few years have
been loaded with lots of USB ports, so I haven't had any need for a hub.
Note as I mentioned above, the motherboard has not changed. I can
surely try a different port...
Oh, hey! That seems to have worked. I'm sure the UPS got plugged into
a different port one of the (many) times the server was removed from the
relay rack, and it was on a USB 3.0 port. I moved it to a 1.0 port and
everything seems to be working just fine.
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