Time Machine extremely slow after upgrade to El Cap

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  I have over 500 GB for backing up a Mac Book Pro 2.7 GHz, 16 GB of RAM.

  When I connect the HD 1 TB in a single day does about 40 GB means that it will take several days making the first backup.

  Not a problem if I do not need to use the computer.

  But when I move, sometimes, the USB cable will move and the backup was interrupted and had to start again.

  It will be very useful if I could to pause the backup, or I can do remotely by the USB port on the router, but mine is D Link.

  I do the backup of an another Macbook that I won't touch these days, so I managed to connect one computer to another via Airdrop.

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• Backups Time Machine very slow on 2015 MacBook Air

  Associated with a topic of discussion between a few days ago (two MacBooks, 10.11.4, a fast Time Machine backup and a very slow), I start a new topic with new information that seem to show it is a problem more general and not related to Time Machine networks.

  Here's the situation:

  • A 2015 MacBook Air, 10.11.4, 8 GB / 512 GB, has extremely slow performance of backup Time Machine, taking 40 hours for the first 300 GB backup and incremental backups for a long time as well
  • TM performance is essentially the same whether on the network (wired Ethernet) or a USB3 external disk
  • When you back up to disk USB3, I confirmed that the information system shows that the port is configured as USB3, not USB2 (nothing else is plugged into the USB port)
  • Tests of bandwidth I/O gross (using dd and iperf) show no problem; the network reached 110 MB/s bandwidth, written network managed at 50 Mbps, external USB3 HD written work at 40-50 MB/s (write hard drive speed limit)
  • 3 other Macs of various ages from 2009-2014 on the same network have no problem at all do backups Time Machine Network; a backup complete first on a 2011 MacBook Pro 500 GB takes 5 hours or more than 10 x faster than the MBA problem
  • Time machine network uses a Linux server running the latest Debian and Netatalk 3.1.8 and the connection is via a USB3/Gigabit adapter, no WiFi, and iperf tests with this arrangement shows 900 MB/s of throughput of the server.  In all cases, the Time Machine and external time Machine Network USB HD have the same symptoms.
  • The problem with MacBook Air is configured the same as the MacBook Pro 2011, which she replaced "daily driver", possible
  • This problem was shown by the MBA since his unboxing conversion, taking 20 hours for his first backup once Setup initially.  Incremental backups now take several hours, leading to interrupted incremental backups and, I believe, databases corrupted backup triggers new full backups that take today the 40 hours.

  Using Terminal Server and iostat, Console, etc, I see that there is significant activity e/s for the backup drive on the order of 20 to 40 MB/s for long periods on the MBA during the TM backup, but during that time the average declared backup size as shown in the window in the console and TM is growing by only 5 GB/hour.  This occur even if the backup will the external drive or a network drive. This seems to mean that the I/O bandwidth to and from the disk hard external, only 1/600 contributes to the progress of the backup.  I am sure that there is overload of certain checks and other tasks, but not to a 600-to-1 ratio.

  I tried to disable the limitation of the I/O of low priority as shown here: http://apple.stackexchange.com/questions/212537/time-machine-ridiculously-slow-a close-el-capitan-upgrade, that helps a bit (maybe 20-30%), but not by a factor of 10 for others.

  I have gone through a number of the Time Machine of Pondini troubleshooting steps, but he found nothing corresponding to these symptoms.

  The only thing I can conclude is that Time Machine, the application or configuration, on this specific MBA, is down. (A single thought that I wrote this to the top that I have not tried: the MBA and the time MBP running VMware Fusion and have a file of 50 + GB VM; on the MBA that is not excluded from TM backups while on the MBP is)

  Does anyone have advice on what to watch next?  In all cases, only one key would be why it seems that only 0.16% of all the bandwidth I/O to the backup drive seems to be actual data backup.

  Once again, three other Macs, all running the same 10.11.4, back to the Time Machine Server perfectly and have for years.  Only this new MBA glue as broken out, either to a network drive or an external hard drive USB3.

  (A single thought that I wrote this to the top that I have not tried: the MBA and the time MBP running VMware Fusion and have a file of 50 + GB VM; on the MBA that is not excluded from TM backups while on the MBP is)

  What happens when you exclude it as the MBP?

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  I used etrecheck to see if I could find anything out of the ordinary.

  Here is the read:

  EtreCheck version: 2.6.6 (226)

  Report generated on 24/12/15 13:18

  Duration 35: 30

  Download EtreCheck from http://etrecheck.com

  Click on the links [click for support] to help with non-Apple products.

  Click on the links [click for more details] for more information on this line.

  Hardware Information: (Does that mean?)

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  [Click for plug technique]

  [Click here for the User Guide]

  MacBook Pro - model: MacBookPro8, 1

  1 2.8 GHz Intel Core i7 CPU: 2 strands

  16 GB of RAM expandable

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  BANK 0/DIMM0

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  BANK 1/DIMM0

  8 GB DDR3 1333 MHz ok

  Bluetooth: Old - transfer/Airdrop2 not supported

  Wireless: en1: 802.11 a/b/g/n

  Battery: Health = Normal - Cycle count = 419 - SN = W01484SACD3BA

  Video information: (Does that mean?)

  Intel HD Graphics 3000

  Color LCD 1280 x 800

  Software: (Does that mean?)

  OS X El Capitan 10.11.2 15 c (50) - time since started: about 15 days

  Disc information: (Does that mean?)

  500 GB SAMSUNG SSD 850 EVO Disk0: (500,11 GB) (Solid State - TRIM: No.)

  EFI (disk0s1) : 210 MB

  HD (disk0s3) [recovery] recovery: 650 MB

  SSD of MacIntosh (disk1) /: 498,88 go-go (469,05 free)

  Storage of carrots: disk0s2 499.25 GB Online

  OPTIARC DVD RW AD - 5970H)

  USB information: (Does that mean?)

  Apple Inc. FaceTime HD camera (built-in)

  Apple Inc. Apple keyboard / Trackpad

  Apple Inc. BRCM2070 hub.

  Apple Inc. Bluetooth USB host controller.

  Computer, Inc. Apple IR receiver.

  Lightning information: (Does that mean?)

  Apple Inc. Thunderbolt_bus.

  Guardian: (Does that mean?)

  Mac App Store and identified developers

  Items in user login: (Does that mean?)

  None

  Other applications: (Does that mean?)

  [ongoing] com.Apple.XPC.launchd.oneshot.0x10000005.EtreCheck

  Plug-ins Internet: (Does that mean?)

  Default browser: Version: 601 - SDK 10.11

  QuickTime Plugin: Version: 7.7.3

  3rd party preference panes: (Does that mean?)

  None

  Time Machine: (Does that mean?)

  Time Machine not configured!

  Top of page process CPU: (Does that mean?)

  kernel_task 2%

  0% launchd

  0% coreduetd

  0% askpermissiond

  Top of page process of memory: (Does that mean?)

  718 MB kernel_task

  442 MB softwareupdated

  Com.apple.WebKit.WebContent 131 MB

  Mdworker (7) 115 MB

  System_installd 98 MB

  Virtual memory information: (Does that mean?)

  12,00 GB of free RAM

  4.35 GB used RAM (3.23 GB being cached)

  Used Swap 0 B

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  Difficult Installation of OS X

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• Time machine always fails after a day or two

  It is so incredibly boring, I can't understand what is happening.

  I have an of UDB external HARD drive that I use for time machine. All the time after a day or two of the race, he's going to say "time machine could not backup"Backup"" when I click on the flag for the information, it is said...

  "Unable to complete backup, an error occurred when creating the backup folder.

  Research online, I found to delete the .inprogress folder, but there is nothing here that named (I looked in fFinder and Terminal)

  When I look at the console it gives me this error:

  21/07/16 8:00:49.676 AM com.apple.backupd [21664]: error: (22) setxattr(2)) for key:com.apple.backupd.HostUUID path:/volumes/backup/backups.backupdb/jeff'aos MacBook Air size: 37

  21/07/16 8:00:49.677 AM com.apple.backupd [21664]: backup failed with error 2:2

  When I try to run disk utility it it fails, but the spectacle of newspapers is because he has failed to dismantle, if I try to unmount manually, it can not because it is currently in use.

  If I run 'sudo lsof - xf + d/Volumes/Backup /' I see this

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  I've looked everywhere and I can't solve this problem on mine more, I spent hours and hours already

  Please take each of the following steps that you have not already tried until the problem is resolved.

  1. disconnect, then reconnect the drive.

  2. in the menu bar, select

  ▹ System Preferences Energy Saver power adapter ▹ ▹ 

  and uncheck the box marked

  Put the hard drives to sleep when possible

  If it is checked.

  Some external readers ignore setting the energy saver and turn down in any case. In this case, the drive to replace with another type, unless the manufacturer's website has a firmware update to fix the problem.

  3. If the player is connected to a hub, connect it to a port built into the computer. If it is already connected to a built-in port, and there is another such port, use.

  4. If the player has more than one deck (for example, FireWire and USB), try another.

  5. check the Web site of the provider of the car for an update of the firmware.

  6 contact the seller to see if there is a firmware setting, you can change.

  7. If you have installed the provider for the reader software, uninstall it.

  8. triple - click anywhere in the line below on this page to select this option:

  /Library/Preferences/com.apple.TimeMachine.plist

  Right-click or Ctrl-click on the highlighted line and select

  Services ▹ reveal in Finder (or just to reveal)

  in the context menu. A Finder window should open with a selected file. Copy the file to the desktop. Then he (the original, not the copy) move to the trash. You will be asked for your administrator password. Restart the computer and re-create your settings in the Time Machine preferences window. It will show you that you have no backups. Don't worry; which is expected. Perform a backup to test. The backup can take much longer than usual. If TM now works as expected, delete the file that you copied to the desktop.

  9. If none of the steps above resolves the problem, the drive may be defective. Try another. You may be able to save an external drive mechanism by installing it in a different pen.

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