System slow while copying files

Hi,
I found a problem on my iMac 27" (2011).
While I'm copying files from a folder to another in the same hdd (this only happens with the iMac hdd) or when unzip a file my system slows down, if I'm watching a video, sometimes freezes the image and then continues.
is it normal?
I've tryed to reset PRAM NVRAM, and verify permissions, and nothing seems to solve the problem.

Copying files from one folder to another on the same harddrive puts double duty on the harddrive to read And write the files. This also consumes CPU cycles, so when watching video, which is data intense from the harddrive or internet also, your system is under heavy load and what you are experiencing is pretty normal. That is one reason that heavy data and viedo users often upgrade when ordering their machine to extra harddrives, hyperthreading CPU's, more RAM and oversized graphics cards.
Hopee this helps

Similar Messages

MacBook Pro unusably slow while copying files over network

I have a 17" MacBook Pro Core 2 Duo running at 2.33 ghz. I have a gigabit ethernet connection to my 1TB Time Capsule (which also provides my wired and wireless network services). However, when I copy files to the Time Capsule (simply drag and drop copy OR Time Machine backup) my MacBook Pro suddenly slows ways down and becomes almost unresponsive to the mouse--kinda like the network copy is taking up all the computer's resources. I move the mouse and maybe 10 seconds later the mouse pointer jerks across the screen and then stops. I literally can't do anything on my computer until the file transfer stops. This also happens when I copy to or from other Macs on the network.
It also happened before I switched to using the Time Capsule...i.e. when I was using a LinkSys router.
I'm running OSX 10.5.2.
Can anyone give me any pointers as to where I should be looking for possible solutions to this problem? Or is this quite normal? (surely not!).
Thanks in advance.

Kappy: I think it's only 100mbps because Network Utility says 100mbps, and the router is (to the best of my knowledge) only 100mbps.
mindaugas: Thanks for the reply. I dont think the ports on it are gigabit as you said (source: http://reviews.cnet.com/routers/linksys-wrt160n/4505-3319_7-32815481.html "The Linksys WRT160N doesn't support the faster Gigabit standard for wired connection, nor does it have USB support"). Anyway, don't think it's overheating, since I'm not having any problem with resetting or dropped connections, just slow. Still, I'm starting to think it can't be much else other than a problem with the router somewhere. Taking it back isn't an option, but maybe I'll stick with it as long as possible and get a better router soon.
Just a thought, could this be anything to do with 802.11g devices connecting to the router as well? Or does this not matter? (Sorry if this is a stupid question - I'm no networking expert)

Time Machine will not complete a system backup and terminates with "Unable to complete backup. An error occurred while copying files to the backup volume. This follows a problem when Time machne terminated when the volume was almost full.

On 11/1/2011, Time Machine (TM) terminated with an error message I did not record. I noted that the drive was full and decided to do a separate complete bootable system backup using Carbon Copy Clone (CCC), before clearing the TM volume and trying to start it over clean. Part way through the full system backup CCC put up a message that there was a Physical Problem "Library/Application Support/Techtool Protection/McIntosh HD/Directory Backup 2011-11-01-16-28-16". That was about the time that TM malfunctioned, so I assumed they were related. After starting CCC over a couple of times, and getting the same error message, I let it go through to completion of the backup, which took three or four hours. I then ran tests using Disk Utility and verified that there was nothing physically wrong with both the internal hard drive and the TM volume. I also erased and reformatted the TM volume. However, every time I started Time Machine, it would record a few GB and terminate with "Unable to complete backup. An error occurred while copying files to the backup volume". I restarted the computer with no change in results. Note that prior to starting the CCC backup, I "Repaired Permissions", "zapped the PRAM" and "re-set the SMC", hoping to have a clean bootable system on the backup. I ran Techtool and no problems were found.
I'm running this on an Intel iMac under 10.5.8 and recording to a 500GB My Passport drive. My hard drive is only about half full at 246 GB. My assessment is that something happened at 16-28-16 on 11/1/2001 to screwup the Backup Directory in the file at "Library/Application Support/Techtool Protection/McIntosh HD/Directory Backup 2011-11-01-16-28-16". My question is, how do I fix it?
I had just completed writing everything above here, explaining the problems I had been encountering for the past 24 hours. I had the Time Machine window standing open on the desktop where I could see it, having recentlycleared it after the last termination. As I was proofing what I had written, I looked at the window and noted that the clock had started a new run for a full back up, since all prior efforts had failed and the TM volume was empty. As I watched and waited for it to fail again, as it had been doing at about 13 GB, it kept going and going until it just finished a complete backup, about 4.5 hours later, with my having done nothing. Now my question would have to be - what could possiibly have happened to make it perform this way? It will be interesting to see if it continue to operate normally, or if the problem will return, in a later backup run.

jcm21 wrote:
CCC put up a message that there was a Physical Problem "Library/Application Support/Techtool Protection/McIntosh HD/Directory Backup 2011-11-01-16-28-16"
You should not keep those files for long, and probably shouldn't back them up (if you need them at all -- since you do regular backups, I'm doubtful just how worthwhile that feature is).
"Unable to complete backup. An error occurred while copying files to the backup volume".
One of Apple's maddeningly incomplete messages. Most likely, there's a problem with a file (quite possibly the one CCC didn't like). See #C3 in Time Machine - Troubleshooting for details and instructions on finding and fixing it.
If you continue running the Directory Protection app, be sure to exclude your Time Machine drive from it (as it will just take up lots of room, and won't help repair your backups if there's a problem); and exclude the folders it creates from being backed-up by Time Machine (as they'll create large backups, and you probably can't use the backed-up folders anyway), per #10 in Time Machine - Frequently Asked Questions.

Using Time Machine to back up two systems, OS10.8.3, and OS 10.6.8. Sometimes it backs them up, sometimes I receive this: Backup was not performed because an error occurred while copying files to the backup disc. The problem may be temporary...

Using Time Machine to back up two systems, OS10.8.3, and OS 10.6.8. Sometimes it backs them up, sometimes I receive this: Backup was not performed because an error occurred while copying files to the backup disc. The problem may be temporary...

Hello,
Thanks to the great Pondini...
http://pondini.org/TM/C3.html

My Time Capsule has stopped backing up. I have an Apple Time Capsule which backs up by wireless. For the last 3 days it has not backed up. I get this message: "The backup was not performed because an error occurred while copying files to the backup disk.

My Time Capsule has stopped backing up.
I have an Apple Time Capsule which backs up by wireless. For the last 3 days it has not backed up. I get this message:
"The backup was not performed because an error occurred while copying files to the backup disk."
I have gone into Mac Help and followed this down to stage 4:
under shared it lists my time capsule and my husband's iMac - both use the time machine but we have switched his off temporarily. Clicking on my Time capsule I get "Connected" and "Sharepoint" - I didn't have to enter connect or password
I don't understand stage 5: how and where do I select the disk or volume that contains Time Machine backups ? How do I know which it is? My disk utility lists 160.04 TOSHIBA MK... with sub-heading Macintosh HD. It also lists (with a "CD" icon) HL-DT-ST DVDRW GS22N
Under stage 6, how and where do I Locate your backup ? I try dragging my Time capsule from Finder to the Disk Utility side panel but it won't go. What is my computer's name?
Please someone help! I'm completely stumped.
Thanks,
Maggie
Mac Help says:
If you back up to a Time Capsule or network disk:
Open the Time Machine pane of System Preferences, and slide the switch to Off.
Open Time Machine preferences
Open Disk Utility, which is in the Utilities folder in the Applications folder.
Open Disk Utility
Make sure the Time Capsule or network disk is turned on and available.
Open a Finder window, select your Time Capsule or network disk in the Shared section of the sidebar, and click Connect. If necessary, enter your user name and password.
On the Time Capsule or network disk, select the disk or volume that contains Time Machine backups. Depending on how your Time Capsule is set up, there may be one or more disks or volumes.
Locate your backup, and drag it to the Disk Utility sidebar.You can identify your backup by looking for your computer’s name in the backup’s filename.

Hello,
Thanks to the great Pondini...
http://pondini.org/TM/C3.html

"Time machine unable to complete backup, Error while copying files"

MacBook Pro, 10.5.5, 500Gb Time Capsule. Backups have stopped working, I get an error message " Time Machine Error, Unable to complete backup. An error occurred while copying files to the backup volume." Nothing I am aware of has changed with my system, updated to 10.5.5 a few days after it was out, backups just stopped working a few days ago.
The backups stop after a different amount of time/data transfer, never completes, always get the same error message. I am able to copy my entire Home folder to the Time Capsule drive (not the Time Machine sparse bundle) successfully.
Steps I've taken: Latest Time Capsule firmware. Repaired permissions. Tried to backup by ethernet and wireless. Deleted "In progress" backup file and started again. Erased entire drive and started fresh. Made a Genius Bar appt today and they gave me a brand new Time Capsule, no go.
What can I do?
Thank you for any help

does this happen on every backup? if so check the console log at the backup time. filter for messages involving backupd. it should give more extensive info on what the error is. sometimes TM chokes on a particular file. excluding it from TM or deleting it altogether might solve the problem.

Time Machine Error: "An error occurred while copying files. The problem may be temporary. If the problem persists, use Disk Utility to repair your backup disk."

I have a MacBook Pro 2.8 GHz Intel Core 2 Duo with 4GB, 500GB HDD, running 10.8.2 My computer as been running slow and fearing my HDD might die. I bought a brand new 1TB G-Drive from Apple yesterday and started my back up. It gets to just over 22GB backed up then I get this error message:
"An error occurred while copying files. The problem may be temporary. If the problem persists, use Disk Utility to repair your backup disk."
Anyone out there who might be able to help me fix this?

I have a MacBook Pro 2.8 GHz Intel Core 2 Duo with 4GB, 500GB HDD, running 10.8.2 My computer as been running slow and fearing my HDD might die. I bought a brand new 1TB G-Drive from Apple yesterday and started my back up. It gets to just over 22GB backed up then I get this error message:
"An error occurred while copying files. The problem may be temporary. If the problem persists, use Disk Utility to repair your backup disk."
Anyone out there who might be able to help me fix this?

I am receiving a backup error message" ther backup was not performed because an error occurred while copying files to the backup disk"

I am receiving an error message: " the backup was not performed because an error occurred while copying files to the backup disk". I have used the Disk Utility tot "Repair Disk" and it appears that there are no problems with the back up file..
I continue to receive the error message. What can anyone suggest I do?

One of Apple's less-than-informative messages.
Most likely, there's a damaged file on your system; see #C3 in Time Machine - Troubleshooting. It will show you how to locate the message(s) that describe the problem, then help you fix it.

Unable to complete backup. An error occurred while copying files to the...

Add me to the list of those with TIme Machine backup failures.
I am repeatedly getting the following error message:
"Unable to complete backup. An error occurred while copying files to the backup volume."
I do have work-around.
1. Open Time Machine Preferences... (from the Time Machine menu in the menu bar)
2. Change Disk...
3. Re-select the disk you are already using and select "Use for Backup"
4. Back Up Now (from the Time Machine menu in the menu bar)
The error eventually comes back, but following the above procedure keeps it at bay for a few days.
I have only had these errors since 10.5.3.

Mle,
Take a look at the following...
*_“Unable to Complete Backup. An Error Occurred While Copying Files to the Backup Volume.” (Console: “Error: (-43) copying”, “Copy stage failed with error:11”)_*
There are several reasons why this error message can appear. Consider each topic individually. If one does not resolve the issue, move on to the next one. The following topics have resolved this issue for others.
*If A Backup Is Interrupted* #
“If an interruption occurs, Time Machine will wait for a period of time to see if the Time Capsule becomes available again. After this time expires you will see a alert message stating "Time Machine Error. Unable to complete backup. An error occurred while copying files to the backup volume." In Time Machine preferences, the "Latest Backup:" field will state "Failed".” [http://support.apple.com/kb/HT1176]
You will need to reestablish communication with the Time Machine backup disk.
*Anti-Virus Software* #
Have you been running anti-virus software? xClav, Norton, Sophos, Macaffe etc... According to many posters in the forums this software can play havoc with Time Machines attempt to function properly.
*Firewire Devise Interferes with Time Machine Backups* #
If you are backing up to an external hard disk by means of firewire, do you happen to have another firewire device attached as well? An iSight camera or video recorder maybe? Sometimes additional firewire devises can interfere with the signal/power to the backup drive. Unplug it and attempt a backing up again.
*Corrupt File / Incorrect Permissions* #
One poster observed: “I searched my system logs and found a file that caused my connection to the TC to fail. I erased that file (after checking what it was - a temporary file connected to my Epson scanner) and tried again to back up for the first time. This time it worked, and in under 10 hours (I had been expecting about 20-24 hours, based on the data transfer speed).”
Initially this might be resolved without deleting the offending file. Simply use Disk Utility to “Repair Disk Permissions”. Or failing that, booting from the Mac OS X Installation DVD and running “Repair Disk” on the Mac’s internal hard disk. Now try backing up
Otherwise, you may need to track down the specific file causing Time Machine to choke.
Before attempting another backup, go into Applications --> Utilities --> and launch Console.
Under “LOG FILES” on the left select "system.log".
In the search field in the upper right, type in backupd. This is the process Time Machine uses to perform backups. By searching just for this process we'll isolate only Time Machine activities.
With the Console open, attempt another backup and note the time it starts and the time it stops. Often, the activities reported will identify the very file or event that caused the attempt to choke. (You can copy and paste the events for this backup attempt from the log into a post here and we may be able to tell you exactly what is happening.)
Once you determine which file or event it is, you can decide whether to move, delete, or modify certain things and then attempt another backup. For Instance, if the logs report something like this:
+Error: (-43) copying /Users/Home/Library/Application Support/Quicksilver/Actions.plist to+
+/Volumes/Backup HD/Backups.backupdb/My Mac Pro//Users/Home/Library/Application+
Support/Quicksilver
Then it’s telling you Time Machine is choking on the file labeled Actions.plist and it’s having trouble copying to the backup disk.
On your computer, Navigate to that file ( Actions.plist ) and move it to the Trash, but DON’T empty it yet. Now try backing up again. If it succeeds, you can launch Time Machine and go back 24-48 hours and restore a copy of Actions.plist and replace it. Then empty trash.
*Partition Scheme/Formatting Issue*
This KB article explains one reason you may be seeing that error message [http://support.apple.com/kb/TS1550]. It's a partition scheme issue. Time Machine is incompatible with disks partitioned as Master Boot Record (MBR). Unfortunately, this describes nearly every hard drive you can buy because MBR is a Windows partition scheme. You will likely need to repartition the drive and start again. (Naturally, this DOES NOT apply to Apples’ Time Capsule.)
One article on Time Machine made this observation: “Virtually everybody will have to open Disk Utility and repartition the disk as APM or GUID. It doesn't really matter which one because the Time Machine disk will not be bootable anyway. APM allows a disk to boot a PowerPC, GUID allows the disk to boot an Intel processor but both are easily digestible by Time Machine on either kind of processor.” (http://www.girr.org/mac_stuff/backups.html)
Once the external hard disk is repartitioned, select it again in Time Machine preferences and use it for your backups.
Let us know if any of the suggestions above resolved your issue.
Cheers!

"Unable to complete backup. An error occurred while copying files to..."

I get this message when I try to backup:
"Unable to complete backup. An error occurred while copying files to the backup volume."
I think one of Apples OSX 10.5 updates this summer is responsible. But how can I find out? The error message gives me nothing to look into.

Hi,
Im getting a similar problem, but for my SafeBrowsing.db file? I tried following the troubleshooting but still can't fix it. Tried excluding it and deleting the file, but it came back.
When I excluded/deleted it, the code changed from:
(36) SrcErr:YES Copying /Previous Systems.localized/2010-09-07_1127/private/var/folders/Aw/AwKhbHXwG6ejptMGZnOq9E+TI/-Caches-/com.apple.Safari/SafeBrowsing.db
to
Error: (-8062) SrcErr:NO Copying /Previous Systems.localized/2010-09-07_1127/private/var/folders/Aw/AwKhbHXwG6ejptMGZnOq9E+TI/-Caches-/com.apple.Safari/SafeBrowsing.db
My new disk is a Seagate, seems to copy files manually pretty well, just gets snagged on this Safari file that doesnt seem to have much use.
Any help would be great.
Thanks!
Message was edited by: Eric Angelillo

My time machine always stops at some point... It always shows this message: "Time Machine Error. Unable to complete backup. An error occurred while copying files to the backup volume.

My time machine always stops at some point... It always shows this message: "Time Machine Error. Unable to complete backup. An error occurred while copying files to the backup volume. I have tried everything and even did time machine in safe boot as told by an apple suppoprt advisor. still the same error after 16gb

If you have more than one user account, these instructions must be carried out as an administrator.
Launch the Console application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ Open LaunchPad. Click Utilities, then Console in the icon grid.
Make sure the title of the Console window is All Messages. If it isn't, select All Messages from the SYSTEM LOG QUERIES menu on the left. If you don't see that menu, select
View ▹ Show Log List
from the menu bar.
Enter the word "Starting" (without the quotes) in the String Matching text field. You should now see log messages with the words "Starting * backup," where * represents any of the words "automatic," "manual," or "standard." Note the timestamp of the last such message that corresponds to a failed backup. Now
CLEAR THE WORD "Starting" FROM THE TEXT FIELD
so that all messages are showning, and scroll back in the log to the time you noted. Select the messages timestamped from then until the end of the backup, or the end of the log if that's not clear. Copy them (command-C) to the Clipboard. Paste (command-V) into a reply to this message.
If all you see are messages that contain the word "Starting," you didn't clear the text field.
If there are runs of repeated messages, post only one example of each. Don't post many repetitions of the same message.
When posting a log extract, be selective. Don't post more than is requested.
Please do not indiscriminately dump thousands of lines from the log into this discussion.
Some personal information, such as the names of your files, may be included — anonymize before posting.

I have MacBook Pro 13-inch with retina early 2013 can I install windows on it because I tried but an error appear ( an error occurred while copying files)

I have MacBook Pro 13-inch with retina early 2013 can I install windows on it because I tried but an error appear ( an error occurred while copying files)

If you are on Yosemite, and have a CoreStorage volume (the default), it is not visible on the Windows side. The Apple HFS driver cannot read CS volumes.
You can verify this by running the following command in OSX Terminal.
diskutil cs list
If you get any output, such volumes will not be visible.
As a work around, if you really need it, check the 'Revertible' value. If it is yes, you can revert it to HFS+ by using the following command
diskutil cs revert
Here is the syntax for the command. The LVUUID parameter can be seen as a long string for your Logical Volume. Do not use the Logical Volume Group or any disk UUIDs. If you need the exact command, please post the output from the diskutil cs list command?
diskutil cs revert
Usage: diskutil coreStorage revert
MountPoint|DiskIdentifier|DeviceNode|lvUUID
[-stdinpassphrase | -passphrase [passphrase] | -recoverykeychain file]
Convert a CoreStorage logical volume back to its native type.
The file system must be mounted and resizable (i.e. Journaled HFS+).
Ownership of the affected disk and a passphrase (if encrypted) is required.

Unable to complete backup. An error occurred while copying files to backup

I erased and restarted my time capsule numerous times and tried re backing up. Little more then have way through i get this message "Unable to complete backup. An error occurred while copying files to the backup volume." With about 80gb left out of 198. On the apple support page ALL it says is ".Restart, then try the backup once again" Here is the link http://support.apple.com/kb/HT3275#3 ....PLEASE Help Me .. What Do I do.. I have read almost every topic and article regarding this ERROR 11 and found nothing and i tried i think all all..The new snow leopard comes out tomorrow so im going to install that and try again.. also if this does not ever work is there a way just to store all my music and photos in the tc and restart my whole computer the archive my files from there ??
All Your Help Will Be Greatly appreciated as i tried to do the research on my own.. This is my last resort
THAN YOU
RAM
Torrance Los Angeles Ca.

Hi there!
I am having exactly the same problem. I have experienced this before, I reset TC and it worked again, but it is not working now. Have you installed Snow Leopard? Did it solve the issue?
Thanks,
Adriano
Malaysia

Time machine: An error occurred while copying files. The problem could be temporary. If the problem persists, use Disk Utility to repair your backup disk.

Time machine backups are failing. I've followed the instructions I found on the Time Machine troubleshooting page (http://pondini.org/TM/Troubleshooting.html) but have gotten to where I don't know what to do next.
Sequence of events:
The main error message is always:
An error occurred while copying files. The problem could be temporary. If the problem persists, use Disk Utility to repair your backup disk.
Yesterday, I opened Disk Utility and verified the disk. Got this error:
Error: This disk needs to be repaired using the Recovery HD. Restart your computer, holding down the Command key and the R key until you see the Apple logo. When the OS X Utilities window appears, choose Disk Utility.
I ran Disk Utility and repaired the hard drive. Then I manually started the backup before going to bed, figuring it was going to take a long time to run. When I got up this morning, the backup had failed with the same "could be temporary" error. I checked the log, which says:
Starting manual backup
Attempting to mount network destination URL: afp://Tery%20Griffin;[email protected]/Tery%20Griffin's%20Time%20Ca psule
Mounted network destination at mount point: /Volumes/Tery Griffin's Time Capsule using URL: afp://Tery%20Griffin;[email protected]/Tery%20Griffin's%20Time%20Ca psule
Disk image /Volumes/Tery Griffin's Time Capsule/Tery Griffin’s Computer (44).sparsebundle mounted at: /Volumes/Time Machine Backups
Backing up to: /Volumes/Time Machine Backups/Backups.backupdb
Event store UUIDs don't match for volume: Macintosh HD
Error: (-36) Applying backup protections to /Volumes/Time Machine Backups/Backups.backupdb/Tery Griffin‚Äôs Computer (44)/2014-03-05-201742.inProgress/ABB10CF2-F041-4DE5-B6AE-3C228B59ADCC
Error: (5) setxattr for key:com.apple.backupd.SnapshotStartDate path:/Volumes/Time Machine Backups/Backups.backupdb/Tery Griffin‚Äôs Computer (44)/2014-03-05-201742.inProgress/ABB10CF2-F041-4DE5-B6AE-3C228B59ADCC size:17
Error: (5) setxattr for key:com.apple.backupd.SnapshotState path:/Volumes/Time Machine Backups/Backups.backupdb/Tery Griffin‚Äôs Computer (44)/2014-03-05-201742.inProgress/ABB10CF2-F041-4DE5-B6AE-3C228B59ADCC size:2
Deep event scan at path:/ reason:must scan subdirs|new event db|
Finished scan
Found 145601 files (11.88 GB) needing backup
16.1 GB required (including padding), 620.77 GB available
Copied Zero KB of 11.88 GB, 0 of 145601 items
Copied 0 files (Zero KB) from volume Macintosh HD.
Copy stage failed with error:11
Backup failed with error: 11
Ejected Time Machine disk image: /Volumes/Tery Griffin's Time Capsule/Tery Griffin’s Computer (44).sparsebundle
Ejected Time Machine network volume.
Starting automatic backup
Attempting to mount network destination URL: afp://Tery%20Griffin;[email protected]/Tery%20Griffin's%20Time%20Ca psule
Mounted network destination at mount point: /Volumes/Tery Griffin's Time Capsule using URL: afp://Tery%20Griffin;[email protected]/Tery%20Griffin's%20Time%20Ca psule
Disk image /Volumes/Tery Griffin's Time Capsule/Tery Griffin’s Computer (44).sparsebundle mounted at: /Volumes/Time Machine Backups
Backing up to: /Volumes/Time Machine Backups/Backups.backupdb
Event store UUIDs don't match for volume: Macintosh HD
Error: (-36) Applying backup protections to /Volumes/Time Machine Backups/Backups.backupdb/Tery Griffin‚Äôs Computer (44)/2014-03-05-201742.inProgress/9F8E7957-9C50-49C3-8314-880E5203E3D9
Error: (5) setxattr for key:com.apple.backupd.SnapshotStartDate path:/Volumes/Time Machine Backups/
Does anyone know what the problem is here and what I should do?
Thanks,
Tery

You have repaired your boot drive (which is good) but have you repaired your time machine drive? I don't own a Time Capsule so I don't know if disk utility can operate on it. If it can, you should repair it as well. You may need to erase it and start a new backup. That happens to time machine volumes from time to time and is why people who are serious about their data never rely on a single source of backup.

An error occurred while copying files.

I am backing up a MacBook Pro Retina display to a 3TB TC and six days ago the backups just stopped and I get the following message:
Time Machine couldn't complete the backup to Time Capsule.
An error occurred while copying files. The problem may be temporary. If the problem persists, use Disk Utility to repair your backup disk.
I looked at the log in Time Machine Buddy and it shows the following:
Starting automatic backup
Attempting to mount network destination URL: afp://Max%20Evjen;AUTH=SRP@Endor._afpovertcp._tcp.local./Data
Mounted network destination at mount point: /Volumes/Data using URL: afp://Max%20Evjen;AUTH=SRP@Endor._afpovertcp._tcp.local./Data
Disk image /Volumes/Data/Max’s MacBook Pro.sparsebundle mounted at: /Volumes/Time Machine Backups
Backing up to /dev/disk5s2: /Volumes/Time Machine Backups/Backups.backupdb
Deep event scan at path:/Users/HippieMBAMA/Pictures/iPhoto Library/Database/apdb reason:contains changes|must scan subdirs|fsevent|missed reservation|file event|
Running event scan
Finished scan
Not using file event preflight for Macintosh HD
Found 3060 files (1.13 GB) needing backup
zero date not marked for delete: /Volumes/Time Machine Backups/Backups.backupdb/Max’s MacBook Pro/2015-02-20-171344
3.37 GB required (including padding), 1.52 TB available
Stopping backup.
Error: (-43) SrcErr:NO Copying /Users/HippieMBAMA/Library/Mail/V2/[email protected]/[Gmail].mbox/All Mail.mbox/86E53377-3EAB-46ED-ADF7-46E0C68CD404/Data/2/6/2/Attachments/262783 to /Volumes/Time Machine Backups/Backups.backupdb/Max’s MacBook Pro/2015-02-26-140223.inProgress/A4533EFE-AAE4-4EDD-A542-1BDD6672E951/Macintosh HD/Users/HippieMBAMA/Library/Mail/V2/[email protected]/[Gmail].mbox/All Mail.mbox/86E53377-3EAB-46ED-ADF7-46E0C68CD404/Data/2/6/2/Attachments
Copied 1358 items (15.1 MB) from volume Macintosh HD. Linked 25141.
Copy stage failed with error:11
Backup failed with error 11: 11
Ejected Time Machine disk image: /Volumes/Data/Max’s MacBook Pro.sparsebundle
Ejected Time Machine network volume.
I tried going back to the gmail settings to ensure the trash settings were set to SHOW and SHOW IN IMAP, and I unchecked "Store deleted messages on the server" for the gmail account in the mail.app, as I was also getting messages about not being able to move messages to trash(null), and I thought that might be the issue, but while that fixed the mail issue, it did not fix the Time Machine issue.
Any help with this would be greatly appreciated.

The TC in and of itself is running ok.. otherwise you would not have internet.. so the issue is the OS in the computer.. however the combo is worse than the sum of the parts.. ie Somehow TC is less reliable with Yosemite than it would otherwise be..
here is the normal fix list.. but it is far from foolproof.
Factory reset universal
Power off the TC.. ie pull the power cord or power off at the wall.. wait 10sec.. hold in the reset button.. be gentle.. power on again still holding in reset.. and keep holding it in for another 10sec. You may need some help as it is hard to both hold in reset and apply power. It will show success by rapidly blinking the front led. Release the reset.. and wait a couple of min for the TC to reset and come back with factory settings. If the front LED doesn’t blink rapidly you missed it and simply try again. The reset is fairly fragile in these.. press it so you feel it just click and no more.. I have seen people bend the lever or even break it. I use a toothpick as tool.
N.B. None of your files on the hard disk of the TC are deleted.. this simply clears out the router settings of the TC.
Setup the TC again.
ie Start from a factory reset. No files are lost on the hard disk doing this.
Then redo the setup from the computer with Yosemite.
1. Use very short names.. NOT APPLE RECOMMENDED names. No spaces and pure alphanumerics.
eg TCgen5 and TCwifi for basestation and wireless respectively.
Even better if the issue is more wireless use TC24ghz and TC5ghz with fixed channels as this also seems to help stop the nonsense. But this can be tried in the second round.
2. Use all passwords that also comply but can be a bit longer. ie 8-20 characters mixed case and numbers.. no non-alphanumerics.
3. Ensure the TC always takes the same IP address.. you will need to do this on the main router using dhcp reservation.. or a bit more complex setup using static IP in the TC. But this is important.. having IP drift all over the place when Yosemite cannot remember its own name for 5 min after a reboot makes for poor networking. If the TC is main router it will not be an issue.
4. Check your share name on the computer is not changing.. make sure it also complies with the above.. short no spaces and pure alphanumeric.. but this change will mess up your TM backup.. so be prepared to do a new full backup. Sorry.. keep this one for second round if you want to avoid a new backup.
5. Mount the TC disk in the computer manually.
In Finder, Go, Connect to server from the top menu,
Type in SMB://192.168.0.254 (or whatever the TC ip is which you have now made static. As a router by default it is 10.0.1.1 and I encourage people to stick with that unless you know what you are doing).
You can use name.. SMB://TCgen5.local where you replace TCgen5 with your TC name.. local is the default domain of the TC and doesn't change.
However names are not so easy as IP address.. nor as reliable. At least not in Yosemite they aren't. The domain can also be an issue if you are not plugged or wireless directly to the TC.
6. Make sure IPv6 is set to link-local only in the computer. For example wireless open the network preferences, wireless and advanced / TCP/IP.. and fix the IPv6. to link-local only.
There is a lot more jiggery pokery you can try but the above is a good start.. if you find it still unreliable.. don't be surprised.
You might need to do some more work on the laptop itself. eg Reset the PRAM.. has helped some people. Clean install of the OS is also helpful if you upgrade installed.
Tell us how you go.
Someone posted a solution.. See this thread.
Macbook can't find Time Capsule anymore
Start from the bottom and work up.. I have a list of good network practice changes but I have avoided Yosemites bug heaven.
This user has had success and a few others as well.
RáNdÓm GéÉzÁ
Yosemite has serious DNS bug in the networking application.. here is the lets say more arcane method of fixing it by doing a network transplant from mavericks.
http://arstechnica.com/apple/2015/01/why-dns-in-os-x-10-10-is-broken-and-what-yo u-can-do-to-fix-it/

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