USB drive spontaneously ejected

There is a message that apprears every few days on my iMac,and sometimes on my Macbook Pro, to the effect that a disk srive was disconnectd without being ejected properly. Iwish Icould quote it literally, and Iwill watch for it now and get the wording into this discussion. Anyway, no one has touched that drive, and in most cases it is still physically connected and even mounted on the desktop.
Can anyone point me to a possible cause? Or how to look at the system log and identify the problem? Isuspect it might be the drive at fault, but it has been working just fine all this time.

In my case, it's a 500GB OWC external drive. And the same thing happens with that drive when it's mounted on my MacBook Pro. And it happened with Snow Leopard and now with Lion.
Since the drive works, I am just remounting it when necessary. Half the time, when that message comes up, the drive is still mounted and visible on the desktop, so then I don't have to do anything.
I have searched the System Log in the time period of this half-baked message to find nothing helpful. What is wrong with this message is that it has no time stam and doesn't identify the disk that ws supposedly removed withut a proper eject.
What does it take to get Apple's attention and help?

Similar Messages

External USB hard drive spontaneously ejects.

I have a 2 TB external USB drive (OWC Mercury Elite AL Pro/Hitachi) connected to my iMac that is spontaneously ejecting. It worked pretty much fine for a long time, and the only big change is upgrading to Snow Leopard. It seems to happen when I am trying to back up, either with Time Machine or with Backup. When I try a drag and drop back up of iPhoto Library, I get an error 36 message, and the drive ejects. IPhoto is only up to date backed up in Time Machine on a partition on the same drive (bought another drive and will put TM and another backup on that one from now on!), so I want to avoid formatting if possible (and don't know if it is a drive problem anyway). Really would like to make sure I have a good backup before I do anything! Tried fixing iPhoto permissions by rebuilding, but don't know if it worked. Read about using iPhoto Library Manager to rebuild, but haven't tried that yet. Techtool is giving me a fail message for video ram, too.
If anyone has any thoughts I would appreciate it!

This sounds very much like the problem I am experiencing. I have a Core i5 27" iMac which was purchased back in December. External USB storage devices (including an iPod shuffle) spontaneously disconnect without warning. Time machine backups will fail while they are in progress at different points in time. iTunes sync operations with my iPod shuffle will sometimes be interrupted. I have no USB hubs connected to my machine. Nor any other devices. The cabling is very good quality and free from sources of noise. The same external drive and cable worked fine with my Mac Pro. I'm running a 64 bit kernel, but I've seen the same problem booted in the 32 bit kernel.
Console log messages below.
- Matt
11/02/2010 20:22:26 kernel USBF: 8830.762 AppleUSBEHCI[0xffffff80133cd000]::Found a transaction past the completion deadline on bus 0xfd, timing out! (Addr: 5, EP: 2)
11/02/2010 20:22:57 kernel USBF: 8861.763 AppleUSBEHCI[0xffffff80133cd000]::Found a transaction past the completion deadline gress/A6A62EDF-EB6B-4BB5-AD27-14CE0D6548F8/Mac OS X/Users/ann/Music/iTunes/iTunes Music/Dirty Vegas/Dirty Vegas/04 Days Go By.m4a] [FSLogMsgID 757946221] [FSLogMsgOrder Last]
11/02/2010 20:22:57 kernel disk2s2: device/channel is not attached.
11/02/2010 20:22:57 kernel
11/02/2010 20:22:57 kernel
11/02/2010 20:22:57 kernel disk2s2: device/channel is nojnl: dt aiskttac2hesd.
11/02/2010 20:22:57 kernel 2: dojnlio: strategy err 0x6
11/02/2010 20:22:57 kernel
11/02/2010 20:22:57 kernel jnl: disk2s2: writejournalheade 0 [Level 3] [ReadUID 0] [Facility com.apple.system.fs] [DevNode /dev/disk2s2] [MountPt /Volumes/Backup] [Path /Volumes/Backup/Backups.backupdb/iMac/2010-02-11-195924.inProgress/A6A62EDF-EB6 B-4BB5-AD27-14CE0D6548F8/Mac OS X/Users/ann/Music/iTunes/iTunes Music/Dirty Vegas/Dirty Vegas/04 Days Go By.m4a] [FSLogMsgID 1497429377] [FSLogMsgOrder Last]
11/02/2010 20:22:57 kernel r: error writing the journal header!
11/02/2010 20:22:57 kernel disk2s2: media is not present.
11/02/2010 20:22:57 kernel
11/02/2010 20:22:57 kernel
11/02/2010 20:22:57 kernel jnl: disk2s2: dojnlio: strategy err 0x6
11/02/2010 20:22:57 kernel jnl: disk2s2: end_transaction: only wrote 0 of 119296 bytes to the journal!
11/02/2010 20:22:57 kernel disk2s2: media is not present.
11/02/2010 20:22:57 com.apple.backupd[727] Error: (-36) SrcErr:NO Copying /Users/ann/Music/iTunes/iTunes Music/Dirty Vegas/Dirty Vegas/04 Days Go By.m4a to /Volumes/Backup/Backups.backupdb/iMac/2010-02-11-195924.inProgress/A6A62EDF-EB6 B-4BB5-AD27-14CE0D6548F8/Mac OS X/Users/ann/Music/iTunes/iTunes Music/Dirty Vegas/Dirty Vegas
11/02/2010 20:22:57 kernel
11/02/2010 20:22:57 kernel
11/02/2010 20:22:57 kernel disk2s2: device/channel is not attached.
11/02/2010 20:22:57 kernel
11/02/2010 20:22:57 kernel
11/02/2010 20:22:57 kernel disk2s2: media is not present.
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11/02/2010 20:22:57 kernel disk2s2: media is not present.
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11/02/2010 20:22:57 kernel disk2s2: media is not present.
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11/02/2010 20:22:57 kernel disk2s2: media is not present.
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11/02/2010 20:22:57 kernel disk2s2: media is not present.
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11/02/2010 20:22:57 kernel disk2s2: media is not present.
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11/02/2010 20:22:57 kernel disk2s2: media is not present.
11/02/2010 20:22:57 kernel disk2s2: media is not present.
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11/02/2010 20:22:57 kernel disk2s2: media is not present.
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11/02/2010 20:22:57 kernel disk2s2: media is not present.
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11/02/2010 20:22:57 kernel disk2s2: media is not present.
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11/02/2010 20:22:57 kernel disk2s2: media is not present.
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11/02/2010 20:22:57 kernel disk2s2: media is not present.
11/02/2010 20:22:57 kernel
11/02/2010 20:22:57 kernel sgID 342134640] [FSLogMsgOrder Last]
11/02/2010 20:22:57 kernel disk2s2: media is not present.
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11/02/2010 20:22:57 kernel disk2s2: media is not present.
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11/02/2010 20:22:57 kernel disk2s2: media is not present.
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11/02/2010 20:22:57 kernel disk2s2: media is not present.
11/02/2010 20:22:57 kernel
11/02/2010 20:22:57 kernel gMsgID 473383956] [FSLogMsgOrder Last]
11/02/2010 20:22:57 kernel disk2s2: media is not present.
11/02/2010 20:22:57 kernel disk2s2: media is not present.
11/02/2010 20:22:57 kernel
11/02/2010 20:22:57 kernel 30614] [FSLogMsgOrder Last]
11/02/2010 20:22:57 kernel disk2s2: media is not present.
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11/02/2010 20:22:57 kernel disk2s2: media is not present.
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11/02/2010 20:22:57 kernel disk2s2: media is not present.
11/02/2010 20:22:57 kernel system.fs] [DevNode /dev/disk2s2] [MountPt /Volumes/Backup] [Path /Volumes/Backup/.Spotlight-V100/Store-V1/Stores/44104FCC-69A1-47A2-884C-897B7D6 1BC1B/live.0.indexArrays] [FSLogMsgID 1929688452] [FSLogMsgOrder Last]
11/02/2010 20:22:57 kernel disk2s2: media is not present.
11/02/2010 20:22:57 kernel
11/02/2010 20:22:57 kernel 3] [ReadUID 0] [Facility com.apple.system.fs] [DevNode /dev/disk2s2] [MountPt /Volumes/Backup] [Path /Volumes/Backup/.Spotlight-rrNo 6] [IOType Write] [PBlkNum 33901896] [LBlkNum 2916] [FSLogMsgID 1286214201] [FSLogMsgOrder First]
11/02/2010 20:22:57 kernel
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11/02/2010 20:22:57 kernel disk2s2: media is not present.
11/02/2010 20:22:57 kernel
11/02/2010 20:22:57 kernel sgID 2080029649] [FSLogMsgOrder Last]
11/02/2010 20:22:57 kernel disk2s2: media is not present.
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11/02/2010 20:22:57 kernel disk2s2: media is not present.
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11/02/2010 20:22:57 kernel disk2s2: media is not present.
11/02/2010 20:22:57 kernel
11/02/2010 20:22:57 kernel disk2s2: media is not present.
11/02/2010 20:22:57 kernel e.system.fs] [DevNode /dev/disk2s2] [MountPt /Volumes/Backup] [Path /Volumes/Backup/.Spotlight-V100/Store-V1/Stores/44104FCC-69A1-47A2-884C-897B7D6 1BC1B/live.0.indexArrays] [FSLogMsgID 1755638369] [FSLogMsgOrder Last]
11/02/2010 20:22:57 kernel disk2s2: media is not prpple.system.fs] [DevNode /dev/disk2s2] [MountPt /Volumes/Backup] [Path /Volumes/Backup/.Spotlight-V100/Store-V1/Stores/44104FCC-69A1-47A2-884C-897B7D6 1BC1B/live.0.indexArrays] [FSLogMsgID 1007401274] [FSLogMsgOrder Last]
11/02/2010 20:22:57 kernel disk2s2: media is not present.
11/02/2010 20:22:57 kernel disk2s2: media is not present.
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11/02/2010 20:22:57 kernel disk2s2: media is not present.
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11/02/2010 20:22:57 kernel disk2s2: media is not present.
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11/02/2010 20:22:57 kernel disk2s2: media is not present.
11/02/2010 20:22:57 kernel pple.system.fs] [DevNode /dev/disk2s2] [MountPt /Volumes/Backup] [Path /Volumes/Backup/.Spotlight-V100/Store-V1/Stores/44104FCC-69A1-47A2-884C-897B7D6 1BC1B/live.0.indexArrays] [FSLogMsgID 1806693641] [FSLogMsgOrder Last]
11/02/2010 20:22:57 kernel disk2s2: media is nlity com.apple.system.fs] [DevNode /dev/disk2s2] [MountPt /Volumes/Backup] [Path /Volumes/Backup/.Spotlight-V100/Store-V1/Stores/44104FCC-69A1-47A2-884C-897B7D6 1BC1B/live.0.indexArrays] [FSLogMsgID 447582800] [FSLogMsgOrder Last]
11/02/2010 20:22:57 kernel disk2s2: media is not present.
11/02/2010 20:22:57 kernel m.apple.system.fs] [DevNode /dev/disk2s2] [MountPt /Volumes/Backup] [Path /Volumes/Backup/.Spotlight-V100/Store-V1/Stores/44104FCC-69A1-47A2-884C-897B7D6 1BC1B/live.0.indexArrays] [FSLogMsgID 1844437056] [FSLogMsgOrder Last]
11/02/2010 20:22:57 kernel disk2s2: media is notity com.apple.system.fs] [DevNode /dev/disk2s2] [MountPt /Volumes/Backup] [Path /Volumes/Backup/.Spotlight-V100/Store-V1/Stores/44104FCC-69A1-47A2-884C-897B7D6 1BC1B/live.0.indexArrays] [FSLogMsgID 1119035640] [FSLogMsgOrder Last]
11/02/2010 20:22:57 kernel D 0] [Facility com.apple.system.fs] [DevNode /dev/disk2s2] [MountPt /Volumes/Backup] [Path /Volumes/Backup/.Spotlight-V100/Store-V1/Stores/44104FCC-69A1-47A2-884C-897B7D6 1BC1B/live.0.indexArrays] [FSLogMsgID 93521861] [FSLogMsgOrder Last]
11/02/2010 20:22:57 kernel disk2s2: media is not present.
11/02/2010 20:22:57 kernel e.system.fs] [DevNode /dev/disk2s2] [MountPt /Volumes/Backup] [Path /Volumes/Backup/.Spotlight-V100/Store-V1/Stores/44104FCC-69A1-47A2-884C-897B7D6 1BC1B/live.0.indexArrays] [FSLogMsgID 1749560974] [FSLogMsgOrder Last]
11/02/2010 20:22:57 kernel disk2s2: media is not present.
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11/02/2010 20:22:57 kernel disk2s2: media is not present.
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11/02/2010 20:22:57 kernel disk2s2: media is not present.
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11/02/2010 20:22:57 kernel disk2s2: media is not present.
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11/02/2010 20:22:57 kernel disk2s2: media is not present.
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11/02/2010 20:22:57 kernel disk2s2: media is not present.
11/02/2010 20:22:57 kernel
11/02/2010 20:22:57 kernel 4057] [FSLogMsgOrder Last]
11/02/2010 20:22:57 kernel disk2s2: media is not present.
11/02/2010 20:22:57 kernel
11/02/2010 20:22:57 kernel ID 2119351251] [FSLogMsgOrder Last]
11/02/2010 20:22:57 kernel disk2s2: media is not present.
11/02/2010 20:22:57 kernel
11/02/2010 20:22:57 kernel disk2s2: media is not present.
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11/02/2010 20:22:57 kernel disk2s2: media is not present.
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11/02/2010 20:22:57 kernel irst]
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11/02/2010 20:22:57 kernel disk2s2: media is not present.
11/02/2010 20:22:57 kernel
11/02/2010 20:22:57 kernel disk2seadUID 0] [Facility com.apple.system.fs] [DevNode /dev/disk2s2] [MountPt /Volumes/Backup] [Path /Volumes/Backup/.Spotlight-V100/Store-V1/Stores/44104FCC-69A725128] [LBlkNum 4172] [FSLogMsgID 647487531] [FSLogMsgOrder First]
11/02/2010 20:22:57 kernel
11/02/2010 20:22:57 kernel MsgID 404964368] [FSLogMsgOrder Last]
11/02/2010 20:22:57 kernel disk2s2: media is not present.
11/02/2010 20:22:57 kernel
11/02/2010 20:22:57 kernel disk2s2: media is not presentple.system.fs] [DevNode /dev/disk2s2] [MountPt /Volumes/Backup] [Path /Volumes/Backup/.Spotlight-V100/Store-V1/Stores/44104FCC-69A1-47A2-884C-897B7D6 1BC1B/lMsgID 48207754] [FSLogMsgOrder First]
11/02/2010 20:22:57 kernel
11/02/2010 20:22:57 kernel disk2s2: media is not present.
11/02/2010 20:22:57 kernel apple.system.fs] [DevNode /dev/disk2s2] [MountPt /Volumes/Backup] [Path /Volumes/Backup/.Spotlight-V100/Store-V1/Stores/441Num 34732632] [LBlkNum 5110] [FSLogMsgID 275354534] [FSLogMsgOrder First]
11/02/2010 20:22:57 kernel
11/02/2010 20:22:57 kernel ID 1021297206] [FSLogMsgOrder Last]
11/02/2010 20:22:57 kernel disk2s2: media is not present.
11/02/2010 20:22:57 kernel disk2s2: media is not present.
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11/02/2010 20:22:57 kernel disk2s2: media is not present.
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11/02/2010 20:22:57 kernel 3] [ReadUID 0] [Facility com.apple.system.fs] [DevNode /dev/disk2s2] [MountPt /Volumes/Backup] [Path /Volumes/Backup/.Spotlight-V100/Store-V1/Stores/44104FCC-69lkNum 36144768] [LBlkNum 6383] [FSLogMsgID 901682743] [FSLogMsgOrder First]
11/02/2010 20:22:57 kernel
11/02/2010 20:22:57 kernel disk2s2: media is not present.
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11/02/2010 20:22:57 kernel disk2s2: media is not present.
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11/02/2010 20:22:57 kernel disk2s2: media is not presey com.apple.system.fs] [DevNode /dev/disk2s2] [MountPt /Volumes/Backup] [Path /Volumes/Backup/.Spotlight-V100/Store-V1/Stores/44104FCC-69A1-47A2-884C-897B7D6 1BC1B/live.0.indexArrays] [FSLogMsgID 1176231290] [FSLogMsgOrder Last]
11/02/2010 20:22:57 kernel disk2s2: media is not present.
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11/02/2010 20:22:57 kernel disk2s2: media is not present.
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11/02/2010 20:22:57 kernel disk2s2: media is not present.
11/02/2010 20:22:57 kernel disk2s2: media is not present.stem.fs] [DevNode /dev/disk2s2] [MountPt /Volumes/Backup] [Path /Volumes/Backup/.Spotlight-V100/Store-V1/Stores/44104FCC-69A1-47A2-884C-897B7D6 1BC1B/live.0.indexArrays] [FSLogMsgID 645043348] [FSLogMsgOrder Last]
11/02/2010 20:22:57 kernel disk2s2: media is not present.
11/02/2010 20:22:57 kernel
11/02/2010 20:22:57 kernel 3] [ReadUID 0] [Facility com.apple.system.fs] [DevNode /dev/disk2s2] [MountPt /Volumes/Backup] [Path /Volumes/Backup/.Spotlight-V100/Store-V1/Stores/44104FCC-69A1-47A2-884C-897B7D6 1BC1B/live.0.indexArrays] [FSLogMsgID 19sgOrder First]
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11/02/2010 20:22:57 kernel disk2s2: media is not present.
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11/02/2010 20:22:57 kernel disk2s2: media is not present.
11/02/2010 20:22:57 kernel
11/02/2010 20:22:57 kernel ] [ReadUID 0] [Facility com.apple.system.fs] [DevNode /dev/disk2s2] [MountPt /Volumes/Backup] [Path /Volumes/Backup/.Spotlight-V100/Store-V1/Stores/44104FCC-69A1-47A2-884C-897B7D6 1BC1B/live.0.indexArrays] [FSLogMsgID 372494250] [FSLogMsgOrder Last]
11/02/2010 20:22:57 kernel disk2s2: media isity com.apple.system.fs] [DevNode /dev/disk2s2] [MountPt /Volumes/Backup] [Path /Volumes/Backup/.Spotlight-V100/Store-V1/Stores/44104FCC-69A1-47A2-884C-897B7D6 1BC1B/live.0.indexArrays] [FSLogMsgID 1903329952] [FSLogMsgOrderLevel 3] [ReadUID 0] [Facility com.apple.system.fs] [DevNode /dev/disk2s2] [MountPt /Volumes/Backup] [Path /Volumes/Backup/.Spotlight-V100/Store-V1/Stores/44104FCC-69A1-47A2-884C-897B7D6 1BC1B/live.0.indexArrays] [FSLogMsgID 1058812552] [FSLogMsgOrder Last]
11/02/2010 20:22:57 kernel disk2s2: media is not present.
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11/02/2010 20:22:57 kernel disk2s2: media is not present.
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11/02/2010 20:22:57 kernel disk2s2: media is not present.
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11/02/2010 20:22:57 kernel ve.0.indexArrays] [FSLogMsgID 1323043687] [FSLogMsgOrder Last]
11/02/2010 20:22:57 kernel disk2s2: media is not present.
11/02/2010 20:22:57 kernel ty com.apple.system.fs] [DevNode /dev/disk2s2] [MountPt /Volumes/Backup] [Path /Volumes/Backup/.Spotlight-V100/Store-V1/Stores/44104FCC-69A1-47A2-884C-897B7D6 1BC1B/live.0.indexArrays] [FSLogMsgID 921012509] [FSLogMsgOrder Last]
11/02/2010 20:22:57 kernel disk2s2: media is not present.
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11/02/2010 20:22:57 kernel disk2s2: media is not presentcom.apple.system.fs] [DevNode /dev/disk2s2] [MountPt /Volumes/Backup] [Path /Volumes/Backup/.Spotlight-V100/Store-V1/Stores/44104FCC-69A1-47A2-884C-8856] [LBlkNum 11894] [FSLogMsgID 457294453] [FSLogMsgOrder First]
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11/02/2010 20:22:57 kernel disk2s2: media is not present.
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11/02/2010 20:22:57 kernel 4104FCC-69A1-47A2-884C-897B7D61BC1B/live.0.indexPositionTable] [FSLogMsgID 1671008095] [FSLogMsgOrder Last]
11/02/2010 20:22:57 kernel disk2s2: media is not present.
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11/02/2010 20:22:57 kernel
11/02/2010 20:22:57 kernel
11/02/2010 20:22:57 kernel disk2s2: media is not present.
11/02/2010 20:22:57 kernel
11/02/2010 20:22:57 kernel disk2s2: media is not present.
11/02/2010 20:22:57 kernel
11/02/2010 20:22:57 kernel
11/02/2010 20:22:57 kernel
11/02/2010 20:22:57 kernel disk2s2: media is not present.
11/02/2010 20:22:57 kernel
11/02/2010 20:22:57 kernel ID 1256802466] [FSLogMsgOrder First]
11/02/2010 20:22:57 kernel
11/02/2010 20:22:57 kernel .indexPositionTable] [FSLogMsgID 1143082955] [FSLogMsgOrder Last]
11/02/2010 20:22:57 kernel disk2s2: media is not present.
11/02/2010 20:22:57 kernel
11/02/2010 20:22:57 kernel sgID 253091129] [FSLogMsgOrder First]
11/02/2010 20:22:57 kernel
11/02/2010 20:22:57 kernel disk2s2: media is not present.
11/02/2010 20:22:57 kernel
11/02/2010 20:22:57 kernel
11/02/2010 20:22:57 kernel disk2s2: media is not present.
11/02/2010 20:22:57 kernel
11/02/2010 20:22:57 kernel
11/02/2010 20:22:57 kernel disk2s2: media is not present.
11/02/2010 20:22:57 kernel
11/02/2010 20:22:57 kernel
11/02/2010 20:22:57 kernel
11/02/2010 20:22:57 kernel
11/02/2010 20:22:57 kernel sgID 95968371] [FSLogMsgOrder Last]
11/02/2010 20:22:57 kernel disk2s2: media is not present.
11/02/2010 20:22:57 kernel
11/02/2010 20:22:57 kernel disk2s2ID 0] [Facility com.apple.system.fs] [DevNode /dev/disk2s2] [MountPt /VolumesID 0] [Facility com.apple.system.fs] [ErrType IO] [ErrNo 6] [IOType Write] [PBlkNum 33925280] [LBlkNum 1134] [FSLogMsgID 2047466993] [FSLogMsgOrder First]
11/02/2010 20:22:57 kernel
11/02/2010 20:22:57 kernel
11/02/2010 20:22:57 kernel
11/02/2010 20:22:57 kernel
11/02/2010 20:22:57 kernel disk2s2: media is not present.
11/02/2010 20:22:57 kernel
11/02/2010 20:22:57 kernel Ids] [FSLogMsgID [FSLogMsgOrder First]
11/02/2010 20:22:57 kernel 17] [FSLogMsgOrder First]
11/02/2010 20:22:57 kernel
11/02/2010 20:22:57 kernel disk2s2: media is not present.
11/02/2010 20:22:57 kernel
11/02/2010 20:22:57 kernel
11/02/2010 20:22:57 kernel disk2s2: media is not present.
11/02/2010 20:22:57 kernel
11/02/2010 20:22:57 kernel
11/02/2010 20:22:57 kernel disk2s2: media is not present.
11/02/2010 20:22:57 kernel
11/02/2010 20:22:57 kernel disk2s2: media is not present.
11/02/2010 20:22:57 kernel
11/02/2010 20:22:57 kernel disk2s2: media is not present.
11/02/2010 20:22:57 kernel
11/02/2010 20:22:57 kernel disk2s2: media is not present.
11/02/2010 20:22:57 kernel ility com.apple.system.fs] [DevNode /dev/disk2s2] [MountPt /Volumes/Backup] [Path /Volumes/Backup/.Spotlight-V100/Store-V1/Stores/44104FCC-69A1-47A2-884C-897B7D6 1BC1B/live.0.indexTermIds] [FSLogMsgID 1120594178] gOrder First]
11/02/2010 20:22:57 kernel
11/02/2010 20:22:57 kernel Level 3] [ReadUID 0] [Facility com.apple.system.fs] [DevNode /dev/disk2s2] [MountPt /Volumes/Backup] [Path /Volumes/Backup/.Spotlight-V100/Store-V1/Stores/44104FCC-69A1-47A2-884C-897B7D6 1BC1B/live.0.indeLogMsgID 1462662926] [FSLogMsgOrder First]
11/02/2010 20:22:57 kernel Ids] [FSLogMsgID 1253852141] [FSLogMsgOrder Last]
11/02/2010 20:22:57 kernel [Level 3] [ReadUID 0] [Facility com.apple.system.fs] [DevNode /dev/disk2s2] [MountPt /Volumes/Backup] [Path /Volumes/Backup/.Spotlight-V100/Store-V1/Stores/44104FCC-69A1-47A2-884C-897B7D6 1BC1B/live.0.indexTermIds] [FSLogMsgID 30] [FSLogMsgOrder First]
11/02/2010 20:22:57 kernel
11/02/2010 20:22:57 kernel
11/02/2010 20:22:57 kernel disk2s2: media is not present.
11/02/2010 20:22:57 kernel
11/02/2010 20:22:57 kernel adUID 0] [Facility com.apple.system.fs] [DevNode /dev/disk2s2] [MountPt /Volumes/Backup] [Path /Volumes/Backup/.Spotlight-V100/Store-V1/Stores/44104FCC-69A1-47A2-884C-897B7D6 1BC1B/live.0.indexTermIds] [FSLogMsgID 1446376793] [FSLogMsgOrder Last]
11/02/2010 20:22:57 kernel disk2s2: media is not present.
11/02/2010 20:22:57 kernel disk2s2: media is not present.
11/02/2010 20:22:57 kernel
11/02/2010 20:22:57 kernel
11/02/2010 20:22:57 kernel
11/02/2010 20:22:57 kernel disk2s2: media is not present.
11/02/2010 20:22:57 kernel
11/02/2010 20:22:57 kernel
11/02/2010 20:22:57 kernel disk2s2: media is not present.
11/02/2010 20:22:57 kernel
11/02/2010 20:22:57 kernel
11/02/2010 20:22:57 kernel disk2s2: media is not present.
11/02/2010 20:22:57 kernel
11/02/2010 20:22:57 kernel
11/02/2010 20:22:57 kernel disk2s2: media is not present.
11/02/2010 20:22:57 kernel
11/02/2010 20:22:57 kernel
11/02/2010 20:22:57 kernel disk2s2: media is not present.
11/02/2010 20:22:57 kernel
11/02/2010 20:22:57 kernel
11/02/2010 20:22:57 kernel disk2s2: media is not present.
11/02/2010 20:22:57 kernel
11/02/2010 20:22:57 kernel
11/02/2010 20:22:57 kernel jnl: disk2s2: close: journal 0xffffff8013500d20, is invalid. aborting outstanding transactions
11/02/2010 20:22:57 com.apple.backupd[727] Stopping backupd because the backup volume was ejected!
11/02/2010 20:22:57 com.apple.backupd[727] Stopping backup.
11/02/2010 20:22:57 com.apple.backupd[727] Error writing to backup log. NSFileHandleOperationException:* -[NSConcreteFileHandle writeData:]: Input/output error
11/02/2010 20:22:57 com.apple.backupd[727] Error: (-8062) SrcErr:NO Copying /Users/ann/Music/iTunes/iTunes Music/Dirty Vegas/Dirty Vegas/04 Days Go By.m4a to /Volumes/Backup/Backups.backupdb/iMac/2010-02-11-195924.inProgress/A6A62EDF-EB6 B-4BB5-AD27-14CE0D6548F8/Mac OS X/Users/ann/Music/iTunes/iTunes Music/Dirty Vegas/Dirty Vegas
11/02/2010 20:22:57 com.apple.backupd[727] Error writing to backup log. NSFileHandleOperationException:* -[NSConcreteFileHandle writeData:]: Input/output error
11/02/2010 20:22:57 com.apple.backupd[727] Error writing to backup log. NSFileHandleOperationException:* -[NSConcreteFileHandle writeData:]: Input/output error
11/02/2010 20:22:57 com.apple.backupd[727] Error writing to backup log. NSFileHandleOperationException:* -[NSConcreteFileHandle writeData:]: Input/output error
11/02/2010 20:22:57 com.apple.backupd[727] Copied 145456 files (14.9 GB) from volume Mac OS X.
11/02/2010 20:22:57 com.apple.backupd[727] Error writing to backup log. NSFileHandleOperationException:* -[NSConcreteFileHandle writeData:]: Input/output error
11/02/2010 20:22:57 com.apple.backupd[727] Copy stage failed with error:11
11/02/2010 20:22:57 com.apple.backupd[727] Error writing to backup log. NSFileHandleOperationException:* -[NSConcreteFileHandle writeData:]: Input/output error
11/02/2010 20:22:57 com.apple.backupd[727] Error writing to backup log. NSFileHandleOperationException:* -[NSConcreteFileHandle writeData:]: Input/output error
11/02/2010 20:22:57 com.apple.backupd[727] Error writing to backup log. NSFileHandleOperationException:* -[NSConcreteFileHandle writeData:]: Input/output error
11/02/2010 20:22:58 com.apple.backupd[727] Backup failed with error: 27
11/02/2010 20:23:01 kernel USBF: 8865.598 [0xffffff80135b6c00] The IOUSBFamily was not able to enumerate a device.
11/02/2010 20:23:01 kernel USBF: 8866.415 [0xffffff80135b6c00] The IOUSBFamily is having trouble enumerating a USB device that has been plugged in. It will keep retrying. (Port 3 of Hub at 0xfd100000)
11/02/2010 20:23:06 kernel USBF: 8871.311 [0xffffff80135b6c00] The IOUSBFamily was not able to enumerate a device.
11/02/2010 20:23:07 kernel USBF: 8872.143 [0xffffff80135b6c00] The IOUSBFamily is having trouble enumerating a USB device that has been plugged in. It will keep retrying. (Port 3 of Hub at 0xfd100000)
11/02/2010 20:23:13 kernel USBF: 8878.239 [0xffffff80135b6c00] The IOUSBFamily was not able to enumerate a device.
11/02/2010 20:23:14 kernel USBF: 8879. 87 [0xffffff80135b6c00] The IOUSBFamily is having trouble enumerating a USB device that has been plugged in. It will keep retrying. (Port 3 of Hub at 0xfd100000)
11/02/2010 20:23:21 kernel USBF: 8886.383 [0xffffff80135b6c00] The IOUSBFamily was not able to enumerate a device.
11/02/2010 20:23:22 kernel USBF: 8887.214 [0xffffff80135b6c00] The IOUSBFamily is having trouble enumerating a USB device that has been plugged in. It will keep retrying. (Port 3 of Hub at 0xfd100000)
11/02/2010 20:23:31 kernel USBF: 8895.711 [0xffffff80135b6c00] The IOUSBFamily was not able to enumerate a device.
11/02/2010 20:23:32 kernel USBF: 8896.559 [0xffffff80135b6c00] The IOUSBFamily is having trouble enumerating a USB device that has been plugged in. It will keep retrying. (Port 3 of Hub at 0xfd100000)
11/02/2010 20:23:41 kernel USBF: 8906.255 [0xffffff80135b6c00] The IOUSBFamily was not able to enumerate a device.
11/02/2010 20:23:42 kernel USBF: 8907. 87 [0xffffff80135b6c00] The IOUSBFamily is having trouble enumerating a USB device that has been plugged in. It will keep retrying. (Port 3 of Hub at 0xfd100000)
11/02/2010 20:23:53 kernel USBF: 8917.983 [0xffffff80135b6c00] The IOUSBFamily was not able to enumerate a device.
11/02/2010 20:23:54 kernel USBF: 8918.830 [0xffffff80135b6c00] The IOUSBFamily is having trouble enumerating a USB device that has been plugged in. It will keep retrying. (Port 3 of Hub at 0xfd100000)
11/02/2010 20:24:06 kernel USBF: 8930.927 [0xffffff80135b6c00] The IOUSBFamily was not able to enumerate a device.
11/02/2010 20:24:07 kernel USBF: 8931.759 [0xffffff80135b6c00] The IOUSBFamily is having trouble enumerating a USB device that has been plugged in. It will keep retrying. (Port 3 of Hub at 0xfd100000)
11/02/2010 20:24:20 kernel USBF: 8945. 55 [0xffffff80135b6c00] The IOUSBFamily was not able to enumerate a device.
11/02/2010 20:24:21 kernel USBF: 8945.903 [0xffffff80135b6c00] The IOUSBFamily is having trouble enumerating a USB device that has been plugged in. It will keep retrying. (Port 3 of Hub at 0xfd100000)
11/02/2010 20:24:35 kernel USBF: 8960.399 [0xffffff80135b6c00] The IOUSBFamily was not able to enumerate a device.
11/02/2010 20:24:36 kernel USBF: 8961.230 [0xffffff80135b6c00] The IOUSBFamily is having trouble enumerating a USB device that has been plugged in. It will keep retrying. (Port 3 of Hub at 0xfd100000)
11/02/2010 20:24:52 kernel USBF: 8976.927 [0xffffff80135b6c00] The IOUSBFamily was not able to enumerate a device.
11/02/2010 20:24:53 kernel USBF: 8977.774 [0xffffff80135b6c00] The IOUSBFamily is having trouble enumerating a USB device that has been plugged in. It will keep retrying. (Port 3 of Hub at 0xfd100000)
11/02/2010 20:25:10 kernel USBF: 8994.671 [0xffffff80135b6c00] The IOUSBFamily was not able to enumerate a device.
11/02/2010 20:25:11 kernel USBF: 8995.502 [0xffffff80135b6c00] The IOUSBFamily is having trouble enumerating a USB device that has been plugged in. It will keep retrying. (Port 3 of Hub at 0xfd100000)
11/02/2010 20:25:29 kernel USBF: 9013.599 [0xffffff80135b6c00] The IOUSBFamily was not able to enumerate a device.
11/02/2010 20:25:29 kernel USBF: 9014.447 [0xffffff80135b6c00] The IOUSBFamily is having trouble enumerating a USB device that has been plugged in. It will keep retrying. (Port 3 of Hub at 0xfd100000)
11/02/2010 20:25:49 kernel USBF: 9033.744 [0xffffff80135b6c00] The IOUSBFamily was not able to enumerate a device.
11/02/2010 20:25:50 kernel USBF: 9034.575 [0xffffff80135b6c00] The IOUSBFamily is having trouble enumerating a USB device that has been plugged in. It will keep retrying. (Port 3 of Hub at 0xfd100000)
11/02/2010 20:26:10 kernel USBF: 9055. 72 [0xffffff80135b6c00] The IOUSBFamily was not able to enumerate a device.
11/02/2010 20:26:11 kernel USBF: 9055.920 [0xffffff80135b6c00] The IOUSBFamily is having trouble enumerating a USB device that has been plugged in. It will keep retrying. (Port 3 of Hub at 0xfd100000)
11/02/2010 20:26:33 kernel USBF: 9077.617 [0xffffff80135b6c00] The IOUSBFamily was not able to enumerate a device.
11/02/2010 20:26:33 kernel USBF: 9078.449 [0xffffff80135b6c00] The IOUSBFamily is having trouble enumerating a USB device that has been plugged in. It will keep retrying. (Port 3 of Hub at 0xfd100000)
11/02/2010 20:26:56 kernel USBF: 9101.345 [0xffffff80135b6c00] The IOUSBFamily was not able to enumerate a device.
11/02/2010 20:26:57 kernel USBF: 9102.192 [0xffffff80135b6c00] The IOUSBFamily is having trouble enumerating a USB device that has been plugged in. It will keep retrying. (Port 3 of Hub at 0xfd100000)
11/02/2010 20:27:21 kernel USBF: 9126.288 [0xffffff80135b6c00] The IOUSBFamily was not able to enumerate a device.
11/02/2010 20:27:22 kernel USBF: 9127.120 [0xffffff80135b6c00] The IOUSBFamily is having trouble enumerating a USB device that has been plugged in. It will keep retrying. (Port 3 of Hub at 0xfd100000)
11/02/2010 20:27:47 kernel USBF: 9152.417 [0xffffff80135b6c00] The IOUSBFamily was not able to enumerate a device.
11/02/2010 20:27:48 kernel USBF: 9153.265 [0xffffff80135b6c00] The IOUSBFamily is having trouble enumerating a USB device that has been plugged in. It will keep retrying. (Port 3 of Hub at 0xfd100000)

USB drive spontaneously switches to read only

This has happened to me twice now. I have inserted a USB drive (formatted for FAT32) into Macbook. The USB drive has been fine for a while on both my Macbook and my Windows 7 computer. Then suddenly and spontaneously switched to read only while inserted into Macbook, without any action on my part. I have OS 10.8.5 installed on my Macbook Air. Anyone else have this problem?

Does your USB drive have a lock switch like SD cards? I have found that sometimes my SD cards will show the same behavior, it is because the lock switch got moved during insertion.
Also usally just ejecting and plugging in resolves the problem.
What is the brand and model of your flash drive?

Lost data on external usb drive when ejecting

I have 2 Freecom XS 1TB USB drives to stare my photos on, one acting as the back-up to the other. They are formatted in FAT32, as I need to access them both from my laptop (Linux Mint 8) as well as the iMac.
I had no problems with this until yesterday, when I had them both connected to the Mac. I had ejected them, then shut down.
When I rebooted the iMac, neither disk had any folders or files on them, although disk utility showed that over 140GB of space was used up. I tried them with the laptop and got the same result.
I have/had 15 years of photos on the disks, and most of the files were RAW files (Sony ARW), with many tif/tiff and jpeg files too. Is there any way of my possibly recovering these files and folders? The RAW files are the most important to me.
I have searched the forum for ideas, but drawn a blank. Please help if you can!

Let me ask the obvious first. Have you attached the external drive back to the Windows machine you moved the data from. If so what happened? You might be able to recover using some free tools from this link. http://pcsupport.about.com/od/filerecovery/tp/free-file-recovery-programs.htm
Give them a try if your Windows box does not see the data on the drive and then use this tool from WD after getting your data back http://support.wdc.com/product/downloaddetail.asp?swid=119 to make an image if needed. Always remember to back up!
/DigitalDreamer

USB Drive not Ejecting

I have 2 WD hard drives and at time (intermittent) they will not eject and have to reboot then they will eject. No disk error on either. Is there a preference to set to get this to work right all the time (EJECT) when you want it to?
thanks

I have the same problem. I will mount the drive and double click it to open it. It comes up with a finder window that is empty. When I close the window and try to eject the drive it reports it is busy. Finder will sometimes hang and I have to sometimes hard power off the computer to recover. I have an 8 gb sandisk crzr
Message was edited by: Gwylym

Spontaneous ejection of usb drive, with improper ejection notice

Hello all, i have been having some problems with a JMicron 0x2329 usb enclosure, on a new iMac. Sometimes it suddenly unmounts, giving the "improper ejection" warning. To which i usually reply out loud- "No i'm pretty sure i didn't- you did." It doesn't make any difference, it refuses to take responsibility for it's actions.
I guess the first thing is... is it the computer, the enclosure, or both?
It's not the cable.
It's not the directory, diskwarrior gave it the green light, and i optimized it anyway.
disk utility finds no problems
Inside is a hitachi 1TB, hfs journaled drive
1 partition
I've stopped and started journaling
I've turned off ownership.
It's been plugged into the computer, and a powered hub.
It's intermittent (it appears that way anyway)
the computer is as follows:
Model Name:                           iMac
Model Identifier:                   iMac12,2
Processor Name:                   Intel Core i5
Processor Speed:                    2.7 GHz
Number of Processors:           1
Total Number of Cores:         4
L2 Cache (per Core):             256 KB
L3 Cache:                              6 MB
Memory:                               4 GB
Boot ROM Version:               IM121.0047.B1E
SMC Version (system):          1.72f5
Serial Number (system):
Hardware UUID:                    891F70C4-5185-5CA8-994D-D28AFEB9E27F
and here is the crux of the console output during such an event:
12-06-04 12:02:05.000 PM kernel: disk3s3: I/O error.
12-06-04 12:02:05.000 PM kernel: IOUSBMassStorageClass[0xffffff800b9ad400]: The device is still unresponsive after 6 consecutive USB Device Resets; it will be terminated.
12-06-04 12:02:05.000 PM kernel: disk3s3: device/channel is not attached.
12-06-04 12:02:05.000 PM kernel: disk3s3: media is not present.
12-06-04 12:02:05.000 PM kernel: disk3s3: media is not present.
12-06-04 12:02:05.000 PM kernel: disk3s3: media is not present.
12-06-04 12:02:05.000 PM kernel: disk3s3: media is not present.
12-06-04 12:02:05.000 PM kernel: disk3s3: media is not present.
12-06-04 12:02:05.000 PM kernel: disk3s3: media is not present.
12-06-04 12:02:05.000 PM kernel: disk3s3: media is not present.
12-06-04 12:02:05.000 PM kernel: disk3s3: media is not present.
12-06-04 12:02:05.000 PM kernel: disk3s3: media is not present.
12-06-04 12:02:05.000 PM kernel: jnl: disk3s3: do_jnl_io: strategy err 0x6
12-06-04 12:02:05.000 PM kernel: jnl: disk3s3: write_journal_header: error writing the journal header!
12-06-04 12:02:05.000 PM kernel: jnl: disk3s3: close: journal 0xffffff800ba00cc0, is invalid. aborting outstanding transactions
12-06-04 12:02:05.741 PM com.apple.revisiond: [ERROR] GSManager.m:-[GSManager _markLibraryCleanWithFSEventID:]:4827 Failed to mark library at path "/.vol/234881036/2/.DocumentRevisions-V100" clean.
12-06-04 12:02:05.847 PM Finder: ISGetIconFamilyFromStorage: seed mismatch for 28d40028, actual seed is 71f32454
12-06-04 12:02:05.847 PM Finder: ISGetIconFamilyFromStorage: seed mismatch for 2dab0029, actual seed is 2ca88611
12-06-04 12:02:05.847 PM Finder: ISGetIconFamilyFromStorage: seed mismatch for 2cb2002a, actual seed is 836c40e
12-06-04 12:12:34.000 PM kernel: USBMSC Identifier (non-unique): F60705FFFFFF 0x152d 0x2329 0x100
12-06-04 12:12:35.000 PM kernel: jnl: disk3s3: replay_journal: from: 55953920 to: 57605120 (joffset 0xd4f17f000)
12-06-04 12:12:36.256 PM fseventsd: event logs in /Volumes/DriveDockFront/.fseventsd out of sync with volume. destroying old logs. (36121 1 36121)
12-06-04 12:12:36.324 PM fseventsd: log dir: /Volumes/DriveDockFront/.fseventsd getting new uuid: B327FAA5-68A9-4131-A7B1-EE029E2FB080
12-06-04 12:12:36.000 PM kernel: jnl: disk3s3: journal replay done.
12-06-04 12:12:36.000 PM kernel: hfs: Removed 0 orphaned / unlinked files and 1 directories

coming back to let people know that my drive is back to normal. The problem(s)? Spotlight, and time-machine. Maybe it's one in the same, but wow i am really starting to hate both of those things. I don't even use time-machine, but something about the way it works (or doesn't) with spotlight has given me trouble more than once. It shows up as a trouble-maker in console despite me not using it. The solution was to go in and delete every file that wasn't a file if you get what it mean haha- .ds, catalogs, plist etc. basically anything invisible (it's not a startup drive and there's no applications on it)- then unplug the drive and plug it into a different bus. This caused spotlight to think it was brand new, and successfully scanned it. Before, every time it tried to do that, it meant guaranteed spontaneous ejection within 30 seconds. I'm guessing that all this had something to do with a new computer, and jumping from leopard to lion. (and ppc to intel) I'm not sure. What i am sure of is that there seems to be a common element in these types of problem threads, the "invalid journal header" or similar variant. The fact that it works perfectly now and has been cataloged, and searching it works fine tells me that the suspicions that it was the drive controller or some other hardware-related issue were unfounded. It's sloppy handling by spotlight and/or time-machine corrupting things. Things which diskwarrior and the like don't recognize as issues.

10.7.5 Have to Force Eject Ext USB Drive After Sleep

Macbook Pro, Late 2011 (USB 2)
I'm finding that I always have to force eject two different 1TB ext USB HDD's after the computer sleeps. Sometimes I think it's even only after the drive spins down for a while.
Most often it's after I let Time Machine backup my laptop overnight.
I thought it was just this drive, until I got a new drive and it has the same problem, though it's not used for backups.
I've been unsuccessful trying to determine what may be using the drive as the eject error states is happening, but maybe that would help me understand if this is a legitimate problem or a bug. Force ejecting has had no noticeable effects, though it makes me extremely nervous on a backup volume. The other disk is a huge sample library that's not written to unless I add samples, so I don't force ejecting that one as much.
In searches for this problem I have only turned up drives that eject spontaneously.
Thanks for any help.

OK, so a new search in here, not via google, found this:
sudo lsof /Volumes/{volume name}
result:
COMMAND PID   USER   FD   TYPE DEVICE SIZE/OFF NODE NAME
mds      67   root   21r   DIR   14,6      544    2 /Volumes/Backup_1TB
Finder 152 andrew   55r   DIR   14,6      204   88 /Volumes/Backup_1TB/Backups.backupdb
So it looks like spotlight or finder. I'm not browsing the backup volume, but it looks like it thinks I am. I know there are lots of spotlight issues, too, but I;m not sure if that's the case here.
I did try:
mdutil -V /Volumes/Backup_1TB/ -s
/Volumes/Backup_1TB:
    No index.
/Volumes/Backup_1TB/Backups.backupdb:
    No index.
So it would appear that spotlight isn't doing anything...

Can't eject USB drive

Hi,
This is driving me crazy. Every time I used a USB drive, I am told that it can't be ejected because a program is using it. Sometimes it says the finder is using it (it shouldn't be: if the finder is using it it is only listing it as a drive). Relaunching the finder using "force quit" doesn't help: it just changes the message to "one or more programs may be using it". Shutting down every single program - none of which are using it anyway - doesn't help. I eventually get a force eject option, which I use, though that comes with a warning that force eject may damage files.
Any help appreciated. Running Yosemite on a late 2010 Air (though I get the same problem on my 2011 Macbook pro).
Thx.

I've been seeing the same problem (and reported it as a bug) with a number of applications (though not the Finder). When a file is in use it is flagged by the system Yosemite seems to either not change the file's flag to not in use or the system isn't getting that the flag has changed. So far exiting the program has solved it for me in every instance - though it is a pain. I think for now it is something we'll just have to live with until Apple tracks it down.

"Drive not properly ejected"--How do I keep a USB drive mounted constantly?

I have a 2-month-old iMac, and have had a USB external SATA-enclosure 2.5" 500gb drive attached the whole time. About a week ago, it started randomly giving the "Drive not properly ejected" message and usually it remounts after a few seconds. Sometimes it doesn't and I have to unplug it and plug it back in.
I thought the drive was at fault, so I switched it with a similar drive that was connected to my AirPort Extreme base station. The problem stayed with the Mac. Also I imagined that (somehow) the iMac wasn't supplying enough power, so I bought a powered USB hub. The result is the same.
I don't understand how it can work for two months and then suddenly get this problem. The only change along the line is that about a week ago I did a software update ("About this Mac" says it is 10.6.7). The latest update DOES coincide with the appearance of this problem.
How do I resolve this?
(Notes: There at least one other thread here where people seem to think that this is a Time Machine problem. I think this is because many people connect large external drives for the purpose of backup. I upgraded to iMac from Mac Mini. I installed Snow Leopard right after I bought the iMac and then tried to restore from my Time Machine backup. Something went wrong, so I mirrored my Mac Mini drive onto a 500gb SATA 2.5", put it in a FireWire enclosure and boot from that. I use the iMac's internal 1T drive for Time Machine. That may sound like "lazy man solution", but it could have a great advantage someday where I could plug that FireWire drive into my Mac Mini and not have any downtime should iMac need to be repaired. The random disconnecting of the USB drive doesn't coincide with any Time Machine events. TM is working fine.)

Kappy,
Thank you for your help with this problem!
Your hypothesis for the drive/enclosure being a problem is good thinking, however:
-The problem never existed for the first two months I had the iMac.
-I can switch similar drives with iMac and AirPort Extreme, and the problem stays with the iMac.
-It has nothing to do with Time Machine as I am using a FireWire drive to boot, and the iMac internal 1TB for Time Machine.
-A friend suggested a cable problem, but I have tried many combinations and it wouldn't explain why suddenly after 2 months three sets of USB cables can fail at the same time (at least one, I used for 3 years with Mac Mini.)
I now have a 111gb drive connected to my AirPort Extreme and it has been copying files to my FireWire drive slowly but surely for two hours now. The same drive disconnected after 13 minutes on the iMac. All indications are pointing to OSX 10.6.7. The perfect test (for anyone with convenient resources) would be to install Snow Leopard from disc on a clean Mac and not upgrade it, plug in a USB drive and see if it can last a day or two. Then, upgrade to 10.6.7 and see what happens. I hope someone can try this.
(Is this a ploy to try to sell more FireWire equipment? I hope not.)

Seagate USB drives appear on desktop but can't be read or ejected.

I have two different Seagate 1TB USB drives, both formatted as Mac OS Extended (Journaled) using Disk Utilities that work fine on my early 2013 MacBook Pro running Mavericks but cause various issues on my late 2013 Mac Pro (also running Mavericks). The drives will show up when connected to the Mac Pro, but when I try to view the contents of the drives, nothing appears and I cannot eject them. Sometimes, I end up with a spinning beach ball in the Finder. I have run the hardware test on my Mac Pro and no issues were detected. I have also Verified and Repaired the disks using Disk Utilities on my Macbook Pro and no issues were detected for those operations.
I'm figuring this must be some sort of driver issue, but I don't understand why the drives operate fine when connected to my Macbook Pro running Mavericks but not the Mac Pro running Mavericks. I didn't install any drivers on the Macbook Pro to get them to work, they just work.

>> also Verified and Repaired the disks using Disk Utilities on MacBook Pro
... and why would they need to be repaired on the nMP:?
It sounds like there is an issue with the port you use and assume you used the same cable.
Q: Does the case have its own power brick adapter or one of those cheaper and smaller bus powered?
Seagate does have a Thunderbolt docking station which is very nice and convenient, and of course will cost more than a USB3
Generally I recommend avoiding vendor's cases.
Seems like we need more information about the drives and case and interface etc.

How to eject USB drive?

I have a USB drive that doesn't want to eject. It get the error that it is in use and can't be ejected. Yet, nothing is using it.
I'm trying to eject through Finder. Any ideas how to resolve this?

Worked just fine. Thanks.
Funny how Apple tech support can never solve anything. After an hour, they'll finally say, force quit everything, restart then restore to factory defaults. That's the common workflow. Get out the big hammer.

2.5 USB drives can not be ejected for some odd reasons

Ever since the last update every time i connect a 2.5 USB drive i can never eject according to Disk Utilities, i get that "quit applications" connected to the drive etc,
I restarted, re connected the drive and tried running disk tools again ad with nothing open again it says the same thing!
Any ideas what might be causing this?
Please advise
Cheers

You might look at the Activity Monitor (in the Utilities folder) to see if you can figure out what is running that might be related to files on the drive.
I also saw a donationware application MacWorld magazine reviewed called “What’s Keeping Me” which is supposed to do exactly what you are getting.
Here’s the WKM website:
http://www.hamsoftengineering.com/products/wkm/wkm.html

USB Drives Ejecting Themselves randomly

I am having a very odd, and potentially "dangerous" (as it may lead to corrupt backups) problem with the USB ports on my brand new late 2011 Macbook Pro 13". The problem is that any usb drive (incl. Powered External HDDs, USB sticks, memory card readers etc.) eject themselves randomly while connected to any of the two available USB ports. I have read through several discussions about this issue but have not been able to find any explanation or solution to this. The thing which bothers me most is that when I wiggle the usb plug in the port on the laptop, the drives eject SOMETIMES, and sometimes they just eject without me doing anything, and sometimes they don't eject at all; so I don't know if it is a hardware fault, or something which I can fix myself!
I brought the machine back to the store and plugged two USB sticks in and wiggled them about, and they stayed mounted, so that was a waste of time. Then I thaught, maybe it has something to do with power management, so I tried this with the MagSafe connected and disconnected. It seems that the ejecting happens when the MagSafe IS connected to the power, and more often with my POWERED External HDDs. It makes no difference which ports I use. I reset the System Management Controller (SMC) and the problem SEEMS to have stopped, but I only tested shortly after doing this.
My question is, should I be worried that I have faulty USB ports on my Macbook (since wiggling the connection seems to have affected it), or is it really something to do with the SMC and my hardware is all OK?
Thanks in advance for your help!

So, my MacBook Pro has now undergone a logic board swap, and when I got it back from repair everything seemend perfectly fine. The external drives which kept getting ejected are not ejecting any more, no matter how much I wiggle the plug in the USB socket. Then yesterday I tried a small USB stick, and bam - it's getting ejected again when touched slightly. I tried 2 different sticks and the same thing is happening. Then I tried the HDDs again - no problems. Then tried the USB sticks again - no problems. This is really driving me crazy, I cannot understand why it happens so intermittently and then works prefectly like nothing ever happened. Also, it can't be a software issue since physically moving the USB plug affects it. Now I am not sure if I should take it back for another repair and keep fighting, or just learn to live with it. I am wondering if it is simply a design fault with the MacBook Pro, or something to do with the way the USB ports are built. Any ideas on what I should do?

Leopard ejects DVDs Region 0 from USB drive that is region specific

This is against region specification standards. Region 0 is universal region that by spec is supposed to be played in any player in the world.
I think it is a bug because Leopard cannot handle external/USB DVD players properly. The issue is new and Tiger does not have it.
After opening case for another DVD movie related issue I am planning to open now whole bunch of them. The choices by Apple engineers are strange and might not follow paper written standards unfortunatelly.
Sincerely,
Maciej Samsel

I have more precise results of recent tests:
1. USB drive ejects poor (errors by media company producing region 0 DVDs?) region 0 DVD. USB drive is unlocked RPC-2 (still changes of region available). Other DVD region 0 is mounted. It is not systems fault. It is behavior of this particular DVD drive. Same drive tested under Tiger and Leopard.
2. Same movie and/or region 1 and region 2 movie mounts in another USB drive that is region free (RPC-1), but menu icons blink and clock vanishes. Icons are not accessible so when DVD (only DVD, because music CDs or data DVDs/CDs do not cause that) is mounted on your desktop forget ability to disable/enable wireles network, Blootooth, VPN, use spotlight or go to another account.

Ejecting USB drives

A friend of mine has recently bought a macbook pro to upgrade his old Dell laptop. He is a keen photographer but daren't use CF cards with the macbook pro because when he ejects the cards the light stays ON on the reader. With his windows machine the light goes off when the card has been successfully ejected. He has been told that removing the card with power connected has a 1 in 50 chance of destroying the card.
I have never had a problem ejecting cards from the Mac but this doesn't reassure him. I was wondering if anyone know why the light doesn't go off when ejecting cards on the mac (I have noticed this with USB drives too). Does the light actually mean anything as far as turning the power off or is it just an indication from the software that the drive is ready to unplug?
He has measured the current in the USB cable when the windows machine ejects the drive and is convinced that power is being reduced to a minimum level somehow, I suspect this is just due to the fact that the LED is no longer on, but I would like to be able to give a definitive answer to this.

I was using my girlfriends USB 128MB stick last night, with no red light showing (well, not that I noticed), then when i dragged it to the ejector/recycle bin, the red light came on constantly (I presumed to tell me that it was ready to remove). I waited 5 seconds to see if it would go out but didn't.

USB drive spontaneously ejected

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