You mentioned
"3. Mount the drive and start a dump level 0.
After a 1/2 hour, or so, dump required operator intervention.
In dmesg, the drive disconnected and reconnected as sdg."
Does this happen to the motherboard port?
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https://bugs.launchpad.net/bugs/1693842
Title:
USB 3.0 Disk Drive Not Recognized.
Status in linux package in Ubuntu:
Confirmed
Bug description:
WD My Passport 2T USB 3.0 Disk Drive.
External Plugable 7 port USB 3.0 hub.
When I connect the WD drive to the external USB 3.0 hub it is not recognized.
The drive led blinks one time and it is not in dmesg or in the output of
lsusb.
> sudo lsusb -v causes the drive led to blink several times and it is
recognized.
With Autosuspend good for this device, long access applications like dump
fail.
After 'sudo lsusb -v' and starting dump, it seems normal for some 20 minutes
and then dump asks for operator intervention. Looking at dmesg the drive
(initially sdf) was disconnected and reconnected as sdg.
Bad Autosuspend for USB device xHCI Host Controller [usb6]
seems to correct this behavior but not the initial connection problem.
Some discussion and testing in bug 1242321.
If I connect the drive to a USB 3.0 port on the motherboard, it is
recognized.
There is no problem with an Plugable 7-port USB 2.0 hub.
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: linux-image-4.4.0-78-generic 4.4.0-78.99
ProcVersionSignature: Ubuntu 4.4.0-78.99-generic 4.4.62
Uname: Linux 4.4.0-78-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.5
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC1: tomdean 3698 F.... pulseaudio
/dev/snd/controlC0: tomdean 3698 F.... pulseaudio
Date: Fri May 26 09:05:20 2017
HibernationDevice: RESUME=UUID=8c377624-f972-4b2b-9364-832f70b2a67a
InstallationDate: Installed on 2016-05-15 (375 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64
(20160420.1)
IwConfig:
lo no wireless extensions.
eno1 no wireless extensions.
MachineType: System manufacturer System Product Name
ProcFB: 0 radeondrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-78-generic
root=UUID=47d8903b-afb2-4432-bc92-b1f4e30209ef ro
RelatedPackageVersions:
linux-restricted-modules-4.4.0-78-generic N/A
linux-backports-modules-4.4.0-78-generic N/A
linux-firmware 1.157.8
RfKill:
0: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 07/25/2014
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 4801
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: P9X79 PRO
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: Rev 1.xx
dmi.chassis.asset.tag: Asset-1234567890
dmi.chassis.type: 3
dmi.chassis.vendor: Chassis Manufacture
dmi.chassis.version: Chassis Version
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvr4801:bd07/25/2014:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnP9X79PRO:rvrRev1.xx:cvnChassisManufacture:ct3:cvrChassisVersion:
dmi.product.name: System Product Name
dmi.product.version: System Version
dmi.sys.vendor: System manufacturer
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