Q: USB External Harddrive Dropping
Hello!
I have a MacBook Pro (Retina, 15-inch, Early 2013) with OS X El Capitan (10.11.6) on it and I am noticing issues with my external harddrive (a Seagate Barracuda 7200.11 1TB 7200 RPM SATA 3.0Gb/s 3.5 Internal Hard Drive in a BlacX Duet HDD Docking Station). These issues were already present with Mavericks and I had hoped an update would fix things, but it hasn't. Originally, my harddrive was NTFS formatted, and with Mavericks I had used Tuxera to read and write from it. I experienced these drops, where the harddrive would disappear from finder and a notification for failing to eject the device would pop up. I suffered it, but hoped for the best with an upgrade to El Capitan. After updating, Tuxera no longer worked and so I decided to simply scrap what I had on there and reformat the drive to Mac OS Extended (Journaled) (or HFS+). Sadly, I still see the drops.
It seems to happen more frequently under a heavy write load. I've tried: switching docks on the Docking Station, using a different type-B USB cable, alternating between the USB 2.0 and USB 3.0 ports on the MacBook, using repair from the disk utility (during which an error actually occurred once and it wasn't able to complete, though it worked on the second attempt just fine), running an Apple Hardware Test (which showed another issue likely related to RAM, a 4MEM/60 error, which was quite surprising and deserved attention but is probably unrelated), and testing the harddrive on my Windows 7 computer (for which I had to use a 10 day trial of Paragon HFS+). Nothing really showed a likely cause for the issue. I can live around this if need be, but the mystery of the origin of the problem irritates me.
Every time before the drop, I see a sequence of messages in the console that typically look like this:
7/23/16 8:49:37.000 PM kernel[0]: disk2s2: I/O error.
7/23/16 8:49:37.000 PM kernel[0]: USB device 152D235214200000 - will be reset!
7/23/16 8:49:38.000 PM kernel[0]: 038729.245264 PRT2@14200000: AppleUSB20XHCIPort::resetAndCreateDevice: failed to create device, disabling port
7/23/16 8:49:39.000 PM kernel[0]: USBMSC Identifier (non-unique): 152D20352000 0x152d 0x2352 0x100, 2
7/23/16 8:49:48.000 PM kernel[0]: USB device 152D235214200000 - failed to re-instantiate!
7/23/16 8:49:48.000 PM kernel[0]: USB device 152D235214200000 - USB Mass Storage stack will be terminated!
7/23/16 8:49:48.000 PM kernel[0]: USB device 152D235214200000 - fConsecutiveResetCount = 1.
7/23/16 8:49:48.000 PM kernel[0]: disk2s2: device/channel is not attached.
7/23/16 8:49:48.000 PM kernel[0]: disk2s2: media is not present.
or this:
7/24/16 5:06:44.000 PM kernel[0]: USB device 152D235214200000 - fConsecutiveResetCount = 1.
7/24/16 5:06:56.000 PM kernel[0]: USB device 152D235214200000 - will be reset!
7/24/16 5:06:56.000 PM kernel[0]: USBMSC Identifier (non-unique): 9A60FFFFFFFF 0x152d 0x2352 0x100, 2
7/24/16 5:06:56.000 PM kernel[0]: USB device 152D235214200000 - fConsecutiveResetCount = 2.
7/24/16 5:07:21.000 PM kernel[0]: SepNdcStream_inspectData: ndc_buffer_submit failed (-34)SepNdcStream_inspectData: ndc_buffer_submit failed (-60)Vulnerability Protection encountered an error (-60).
7/24/16 5:07:21.000 PM kernel[0]: SepNdcStream_inspectData: ndc_buffer_submit failed (-34)SepNdcStream_inspectData: ndc_buffer_submit failed (-60)Vulnerability Protection encountered an error (-60).
7/24/16 5:07:21.000 PM kernel[0]: SepNdcStream_inspectData: ndc_buffer_submit failed (-34)SepNdcStream_inspectData: ndc_buffer_submit failed (-60)Vulnerability Protection encountered an error (-60).
7/24/16 5:07:22.000 PM kernel[0]: SepNdcStream_inspectData: ndc_buffer_submit failed (-34)SepNdcStream_inspectData: ndc_buffer_submit failed (-60)Vulnerability Protection encountered an error (-60).
7/24/16 5:07:26.000 PM kernel[0]: USB device 152D235214200000 - will be reset!
7/24/16 5:07:27.000 PM kernel[0]: 111800.236481 PRT2@14200000: AppleUSB20XHCIPort::resetAndCreateDevice: failed to create device, disabling port
7/24/16 5:07:29.000 PM kernel[0]: 111802.469560 PRT2@14200000: AppleUSB20XHCIPort::resetAndCreateDevice: failed to create device, disabling port
7/24/16 5:07:32.000 PM kernel[0]: 111804.833032 PRT2@14200000: AppleUSB20XHCIPort::resetAndCreateDevice: failed to create device, disabling port
7/24/16 5:07:34.000 PM kernel[0]: 111807.460222 PRT2@14200000: AppleUSB20XHCIPort::resetAndCreateDevice: failed to create device, disabling port
7/24/16 5:07:38.000 PM kernel[0]: 111810.556491 PRT2@14200000: AppleUSB20XHCIPort::resetAndCreateDevice: failed to create device, disabling port
7/24/16 5:07:38.000 PM kernel[0]: USB device 152D235214200000 - failed to re-instantiate!
7/24/16 5:07:38.000 PM kernel[0]: USB device 152D235214200000 - USB Mass Storage stack will be terminated!
7/24/16 5:07:38.000 PM kernel[0]: USB device 152D235214200000 - fConsecutiveResetCount = 3.
7/24/16 5:07:38.000 PM kernel[0]: disk2s2: device/channel is not attached.
7/24/16 5:07:38.000 PM kernel[0]: disk2s2: media is not present.
7/24/16 5:07:38.000 PM kernel[0]: disk2s2: device/channel is not attached.
7/24/16 5:07:38.000 PM kernel[0]: disk2s2: media is not present.
I have plenty more of console messages that I've saved, but I don't wish to make this post any longer than I already have.
Any help/advice would be appreciated!
MacBook Pro (Retina, 15-inch, Early 2013), OS X El Capitan (10.11.6)
Posted on Aug 1, 2016 4:14 PM