External drive slows down system

I purchased this 27 inch iMac last month. Its loaded. 3 TB HD, 32 GB Ram, 4 TB External Lacie Thunderbolt Drive.
The system slows to a crawl, with beach balls, slowness (I mean REALLY SLOW). I also have errors transferring files from the Lacie to the internal HD.
I got frustrated beecause I thought my files were corrupt (my Adobe lightroom catalog files were reporting as being corrupt). After a day or two of monkeying around, I zeroed in on the Lacie HD as the source of my problems. I reformatted, rebuilt the raid array, and restored from a Drobo....and voila! It worked.
For about an hour. Then, slowness returns. I ran the extended hardware check.....nothing wrong.
I called Lacie tech support. The guy asked me to unplug the drive and the power to it. Plugged everything back in, and voila again! It flew.
30 minutes later, more slowness. I called lacie, and the tech support person suggested I might have a bad thunderbolt cable and offered to send me another one (which will presumably be on the way tomorrow).
Has anyone had this kind of a problem? Do you think the cable might fix the problem? Or do you think the drive is defective?
Thanks
Kenny in NJ

Its not the drive. I have two external drives connected and mine are from Seagate. The problem most likely occurs between the iOS and the USB/Thunderbolt/Firewire connections.
Any response from Apple?

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I backed up my bookmarks to an external drive, rebuilt my system, and now when I try to restore from that file, I get "unsupported file type" How can I restore from this file?

I backed up my bookmarks to an external drive, rebuilt my system, and now when I try to restore from that file, I get "unsupported file type" How can I restore from this file?

Make sure that the backup file with the bookmarks has the correct file extension: .html for a HTML backup and .json for a JSON backup. 
You can check that via the right-click context menu of that file and open the Properties. 
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My coworker's external hard drive slowing down my computer

Hello,
I have a question. My coworker plugged in his external hard drive to my iMac with a USB, and he has to run its files everyday through network from his computer. The reason he does this is because his old iMac cannot read his newly formate external hard drive. I feel like my computer is slowing down. Is what he's doing slowing down my computer? Is there a way to not let the external drive using my CPU or memory? Is there a way to set it to low priority?
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External disk slowing down Spotlight

I have an external (FireWire) disk plugged into my Mac for Time Machine. But every time I do a Spotlight search from the Spotlight menu item (Cmd-Space) there's a delay of around 5 seconds while my external disk spins up.
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Editing movies which are on an external fast FireWire disc generally allows things to run faster, as the internal disc can simultaneously do its own 'housekeeping' duties, or swapping things in and out of memory, or reading bits of program from the internal disc ..while all video data transfers happen exclusively on the external disc.
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http://reviews.cnet.com/8301-13727_7-10346924-263.html
/p

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Joe;
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Syd Rodocker
Apple iTunes U Administrator
Tennessee State Department of Education
Tennessee's Electronic Learning Center

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I have 3 Hard Drives now, and a problem.
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Can't boot your computer from a USB drive. Buy a Firewire enclosure and put the drive into a Firewire enclosure. You can then partition it and install OS X on one of the partitions and be able to boot from it.
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Partitioning a drive will erase all the data on the drive.
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"and unplugged at the mains."
Why?
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If the area where your computer is sittiing is that dusty and/or you have pets (dogs or cats) then maybe you should keep it covered when not in use. Use a pillow case if you do not have an old fashion computer cover-->

Best way to take songs on playlist from external drive to main system drive

consolidate?

It will copy everything not in iTunes, into the into the iTunes folder into Artist/Album/ folders.
also will the library then reference the files on the drive rather than the previous location of external drive?
Yes.
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I don't know all the details of your system's implenentation, but I've been fussing with Macs for over 25 years and am currently on an 8X 3.2GHz 2008 Mac Pro... this ain't gospel...
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Since I installed Mavericks it's really slwoing down my operating system.
I have repaired disk permissions in safe mode, which hasn't improved things.
So after reading on here I tried Etrecheck. But I'm not sure how to interpret the results.
Could someone please tell me if there is some obvious things I should change, uninstall etc?
Thanks in advance.
Hardware Information:
 MacBook Pro (15-inch, Early 2011)
 MacBook Pro - model: MacBookPro8,2
 1 2 GHz Intel Core i7 CPU: 4 cores
 4 GB RAM
Video Information:
 Intel HD Graphics 3000 - VRAM: 384 MB
 AMD Radeon HD 6490M - VRAM: 256 MB
Audio Plug-ins:
 BluetoothAudioPlugIn: Version: 1.0 - SDK 10.9
 AirPlay: Version: 2.0 - SDK 10.9
 AppleAVBAudio: Version: 203.2 - SDK 10.9
 iSightAudio: Version: 7.7.3 - SDK 10.9
Startup Items:
 HWNetMgr: Path: /Library/StartupItems/HWNetMgr
 HWPortDetect: Path: /Library/StartupItems/HWPortDetect
 PACESupport: Path: /Library/StartupItems/PACESupport
 StartOuc: Path: /Library/StartupItems/StartOuc
System Software:
 OS X 10.9.3 (13D65) - Uptime: 0 days 0:14:19
Disk Information:
 TOSHIBA MK5065GSXF disk0 : (500.11 GB)
 EFI (disk0s1) <not mounted>: 209.7 MB
 Macintosh HD (disk0s2) /: 499.25 GB (87.01 GB free)
 Recovery HD (disk0s3) <not mounted>: 650 MB
 MATSHITADVD-R UJ-8A8
USB Information:
 Apple Inc. FaceTime HD Camera (Built-in)
 Apple Inc. Apple Internal Keyboard / Trackpad
 Apple Inc. BRCM2070 Hub
 Apple Inc. Bluetooth USB Host Controller
 Apple Computer, Inc. IR Receiver
FireWire Information:
 LaCie Rugged FW/USB 800mbit - 800mbit max
 disk1s1 (disk1s1) <not mounted>: 32 KB
 J G Hard Disk (disk1s3) /Volumes/J G Hard Disk: 499.97 GB (15.91 GB free)
Thunderbolt Information:
 Apple Inc. thunderbolt_bus
Kernel Extensions:
Problem System Launch Daemons:
Problem System Launch Agents:
Launch Daemons:
 [loaded] com.adobe.fpsaud.plist
 [loaded] com.oracle.java.Helper-Tool.plist
 [loaded] com.oracle.java.JavaUpdateHelper.plist
 [loaded] com.paceap.eden.licensed.plist
 [failed] PACESupport.plist
Launch Agents:
 [loaded] com.amazon.sendtokindle.launcher.plist
 [loaded] com.divx.dms.agent.plist
 [loaded] com.divx.update.agent.plist
 [loaded] com.oracle.java.Java-Updater.plist
User Launch Agents:
 [failed] com.adobe.ARM.[...].plist
 [failed] com.apple.CSConfigDotMacCert-[redacted]@me.com-SharedServices.Agent.plist
 [loaded] com.facebook.videochat.[redacted].plist
 [failed] com.hp.printerAgent.plist
User Login Items:
 CrossOver CD Helper
 Android File Transfer Agent
 Screenleap
 NIHardwareAgent
3rd Party Preference Panes:
 None
Internet Plug-ins::
 JavaAppletPlugin: Version: Java 7 Update 60
 FlashPlayer-10.6: Version: 14.0.0.125 - SDK 10.6
 DivX Web Player: Version: 3.2.1.977 - SDK 10.6
 Flash Player: Version: 14.0.0.125 - SDK 10.6
 Default Browser: Version: 537 - SDK 10.9
 OVSHelper: Version: 1.1
 QuickTime Plugin: Version: 7.7.3
 OfficeLiveBrowserPlugin: Version: 12.3.6
 Unity Web Player: Version: UnityPlayer version 4.1.5f1
 Silverlight: Version: 5.1.10411.0 - SDK 10.6
 iPhotoPhotocast: Version: 7.0
User Internet Plug-ins::
 EMusic: Version: EMusic 1.0.0
 ZoomUsPlugIn: Version: 2.0.31405.1104 - SDK 10.8
 ScreenleapPlugin_1.0.0: Version: 1.0.0 - SDK 10.9
Bad Fonts:
 None
Old applications:
 DivX Converter: Version: 10.2.1 (Build 10.2.1.104) - SDK 10.5
 /Applications/DivX Converter.app
 DivX Preferences: Version: 1.0 - SDK 10.5
 /Applications/DivX/DivX Preferences.app
 DivXTransferWizard: Version: 10.2.0 (Build 10.2.1.69) - SDK 10.5
 /Library/Application Support/DivX/DivXTransferWizard.app
 DivXUpdate: Version: 1.0 - SDK 10.5
 /Library/Application Support/DivX/DivXUpdate.app
 Microsoft AutoUpdate: Version: 2.3.6 - SDK 10.4
 /Library/Application Support/Microsoft/MAU2.0/Microsoft AutoUpdate.app
 Microsoft Error Reporting: Version: 2.2.9 - SDK 10.4
 /Library/Application Support/Microsoft/MERP2.0/Microsoft Error Reporting.app
 Microsoft Ship Asserts: Version: 1.1.4 - SDK 10.4
 /Library/Application Support/Microsoft/MERP2.0/Microsoft Ship Asserts.app
 SLLauncher: Version: 1.0 - SDK 10.5
 /Library/Application Support/Microsoft/Silverlight/OutOfBrowser/SLLauncher.app
 Senuti: Version: 1.2.9 - SDK 10.5
 /Applications/Senuti.app
 licenseDaemon: Version: 1.1 - SDK 10.5
 /Library/PrivilegedHelperTools/licenseDaemon.app
Time Machine:
 Skip System Files: NO
 Auto backup: NO
 Volumes being backed up:
 Macintosh HD: Disk size: 464.96 GB Disk used: 383.92 GB
 Destinations:
 Untitled [Local] (Last used)
 Total size: 465.44 GB
 Total number of backups: 1
 Oldest backup: 2013-07-29 21:50:16 +0000
 Last backup: 2013-07-29 21:50:16 +0000
 Size of backup disk: Too small
 Backup size 465.44 GB < (Disk used 383.92 GB X 3)
 Time Machine details may not be accurate.
 All volumes being backed up may not be listed.
Top Processes by CPU:
 24% SilverKeeper
 5% kextd
 1% EtreCheck
 1% WindowServer
 0% coreservicesd
Top Processes by Memory:
 147 MB com.apple.IconServicesAgent
 143 MB mds_stores
 143 MB Safari
 94 MB Finder
 84 MB com.apple.WebKit.WebContent
Virtual Memory Statistics:
 162 MB Free RAM
 1.42 GB Active RAM
 1.26 GB Inactive RAM
 1.04 GB Wired RAM
 328 MB Page-ins
 3 MB Page-outs

SIlverkeeper seems to work fine on Mavericks. And Lacie don't have a more recent alternative to Silverkeeper.
System still v slow, spinning raimbow ball etc.
Might it be helpful to re-install Mavericks?
I can't do a clean install as I don't have the install disks of most of my other software with me.
The updated Etrecheck is below, thanks :
Hardware Information:
 MacBook Pro - model: MacBookPro8,2
 1 2 GHz Intel Core i7 CPU: 4 cores
 4 GB RAM
Video Information:
 Intel HD Graphics 3000 - VRAM: 384 MB
 AMD Radeon HD 6490M - VRAM: 256 MB
Audio Plug-ins:
 BluetoothAudioPlugIn: Version: 1.0 - SDK 10.9
 AirPlay: Version: 2.0 - SDK 10.9
 AppleAVBAudio: Version: 203.2 - SDK 10.9
 iSightAudio: Version: 7.7.3 - SDK 10.9
System Software:
 OS X 10.9.3 (13D65) - Uptime: 0 days 1:40:46
Disk Information:
 TOSHIBA MK5065GSXF disk0 : (500.11 GB)
 EFI (disk0s1) <not mounted>: 209.7 MB
 Macintosh HD (disk0s2) /: 499.25 GB (99.94 GB free)
 Recovery HD (disk0s3) <not mounted>: 650 MB
 MATSHITADVD-R UJ-8A8
USB Information:
 Apple Inc. Apple Internal Keyboard / Trackpad
 Apple Inc. BRCM2070 Hub
 Apple Inc. Bluetooth USB Host Controller
 Apple Inc. FaceTime HD Camera (Built-in)
 Apple Computer, Inc. IR Receiver
FireWire Information:
Thunderbolt Information:
 Apple Inc. thunderbolt_bus
Kernel Extensions:
Problem System Launch Daemons:
Problem System Launch Agents:
Launch Daemons:
 [loaded] com.adobe.fpsaud.plist
 [loaded] com.microsoft.office.licensing.helper.plist
 [loaded] com.oracle.java.Helper-Tool.plist
 [loaded] com.oracle.java.JavaUpdateHelper.plist
Launch Agents:
 [loaded] com.amazon.sendtokindle.launcher.plist
 [loaded] com.oracle.java.Java-Updater.plist
User Launch Agents:
User Login Items:
 None
3rd Party Preference Panes:
 None
Internet Plug-ins::
 JavaAppletPlugin: Version: Java 7 Update 60
 FlashPlayer-10.6: Version: 14.0.0.125 - SDK 10.6
 QuickTime Plugin: Version: 7.7.3
 Flash Player: Version: 14.0.0.125 - SDK 10.6
 Default Browser: Version: 537 - SDK 10.9
 OfficeLiveBrowserPlugin: Version: 12.3.6
 SharePointBrowserPlugin: Version: 14.1.0
 Silverlight: Version: 5.1.30317.0 - SDK 10.6
 iPhotoPhotocast: Version: 7.0
User Internet Plug-ins::
 ScreenleapPlugin_1.0.0: Version: 1.0.0 - SDK 10.9
Bad Fonts:
 None
Old applications:
 Microsoft AutoUpdate: Version: 2.3.6 - SDK 10.4
 /Library/Application Support/Microsoft/MAU2.0/Microsoft AutoUpdate.app
 Microsoft Error Reporting: Version: 2.2.9 - SDK 10.4
 /Library/Application Support/Microsoft/MERP2.0/Microsoft Error Reporting.app
 Microsoft Ship Asserts: Version: 1.1.4 - SDK 10.4
 /Library/Application Support/Microsoft/MERP2.0/Microsoft Ship Asserts.app
 SLLauncher: Version: 1.0 - SDK 10.5
 /Library/Application Support/Microsoft/Silverlight/OutOfBrowser/SLLauncher.app
Time Machine:
 Skip System Files: NO
 Auto backup: NO
 Volumes being backed up:
 Macintosh HD: Disk size: 464.96 GB Disk used: 371.88 GB
 Destinations:
 Untitled [Local] (Last used)
 Total size: 465.44 GB
 Total number of backups: 1
 Oldest backup: 2013-07-29 21:50:16 +0000
 Last backup: 2013-07-29 21:50:16 +0000
 Size of backup disk: Too small
 Backup size 465.44 GB < (Disk used 371.88 GB X 3)
 Time Machine details may not be accurate.
 All volumes being backed up may not be listed.
Top Processes by CPU:
 10% WindowServer
 2% Safari
 2% hidd
 1% Dock
 1% cookied
Top Processes by Memory:
 164 MB Mail
 156 MB Skype
 143 MB Safari
 98 MB Finder
 94 MB Calendar
Virtual Memory Statistics:
 167 MB Free RAM
 1.31 GB Active RAM
 1.14 GB Inactive RAM
 1.02 GB Wired RAM
 577 MB Page-ins
 5 MB Page-outs

External drive slows down system

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