Time machine always propose a new fresh backup

Hi all,
I am running an iMac 21.5" Late 2012, with an Intel Core i5 at 2,7 GHz, 8Gb RAM. I have recently (some months) moved from Mavericks to Yosemite (by the way, experimenting a general slow down is the system, I have brought my mac to an Apple Store and, after their checks, they told me that the computer i perfectly fine...) and since then I am having problems with Time Machine backups. After the first backup, time machine correctly performs following backups for a while and then (say, generally after a couple of days of seemingly correct functioning) asks me for a fresh backup as the verification of the actual backup seems to be not not reliable enough.
Technically, the message I get is the following:
Time Machine completed a verification of your backups. To improve reliability, Time Machine must create a new backup for you.
What I can't really understand is why is this happening so frequently... It is quite boring to have my machine backing-up a large amount of data (I have a 1TB HDD connected to an Airport Extreme, to which my mac connects via wi-fi) almost every two days...
Let me just add that I was NOT having such problems when running Mavericks on the very same iMac...
Is there any reported problem of this kind? What does it depend from? Is there any possible solution to this?
Any help would be very welcome!
Thanx, best regards
Stefano

Start with C13 in the 1st linked article.
Time Machine Troubleshooting
Time Machine Troubleshooting Problems

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And thanks to both of you for the valuable information so far!

Time Machine must create a new backup for you

getting this error message Time Machine completed a verification of your backups. To improve reliability, Time Machine must create a new backup for you. don't want to lose the history off my backups how can i fix this without losing any backups.

You really can't.
That's not one of Apple's clearest messages; it means your backups are damaged beyond OSX's ability to repair them. See #C13 in Time Machine - Troubleshooting for details.

"....To Improve Reliability, Time Machine Must Create a New Backup for You"

I bought the new Apple 2 TB Time Capsule thinking it would be a great way to get a powerful wireless router and handle file backup for both me and my wife's iMacs. She is running an up-to-date version of Snow Leopard and I am on the most recent update of Mountain Lion. The Time Capsule was installed and running by the first of August and we had no problems until this monday (7 weeks later) when I got the message that "Time Machine completed a verification of your backups. To improve reliability Time Machinge must create a new backup" My wife's back up was still ok but I had to go though the 5-6 hour process of re-copying all my files(using an ethernet connection) to the device. All went smoothly for a few days until I got the same message again about creating a new backup. Also my wife cannot enter her time machine files even though the computer is still being backed up. We have a stable internet service and both computers recieve a strong signal from the router. Is it possible that the Time Capsule Drive is defective? Is there any sort of maintenance such as zpping the PRAM that would help? This is really frustrating as it looks like the timemachine backup is totally unreliable and not worth fooling with. Is there any way to use the storage capability of the time capsule without going through time machine?
Thanks,
Reid McCallister

hi
rest assured you are not alone. i have the same problem and i hate it with a passion. in fact, i am the victim of this message as of 20 minutes ago and doing a full backup as I am typing this. I am so overly ****** that I actually posted here and will be calling or emailing apple next because I cannot take this anymore. the problem lies in time machine and unfortunately, there is no fix for that. time machine is the best idea of apple with the worst implementation ever. you have no obligation to use time capsule to benefit from time machine as this would not be legal anyway. i will give you 2 temporary solutions and let you decide which one works best for you:
1) open time machine preferences and turn automatic backups off. create a new full backup from scratch and only backup manually whenever you remember, preferably every day. the automation process is the problem that lies within time machine. also make sure that your system does not go to standy or sleep whatever that may be called. Power nap, despite all claims, is not compatible with time machine. install CAFFEINE, an app that keeps your mac awake and prevents from going to sleep while back up is in progress. use it like this and pray it will all go fine for a long time. you may wish to duplicate the first full backup to save time in case this should happen again so you have a base to start on
2) install CCC (carbon copy cleaner) I have not used it myself yet, but probably will be installing it after finishing this post. it is claimed to be better, yet it is yet to be seen by me personally.
unless time machine can be trained without any addons to use a specific wifi only for backup, these issues will persist.

Getting this error: Time Machine completed a verification of your backups. To improve reliability, Time Machine must create a new backup for you.

I keep getting this error on my new Macbook Pro w/ Retina.
"Time Machine completed a verification of your backups. To improve reliability, Time Machine must create a new backup for you."
Connected to a wifi network and QNAP storage system. There are 5 computers on this network, and each backs up just fine. The issue is isolated to this one machine.
This error shows up every week or so.

A third-party NAS is unsuitable for use with Time Machine, especially if it's your only backup. I know this isn't the answer you want. I know Time Machine accepts the NAS as a backup destination. I know that the manufacturer says the device will work with Time Machine, and I also know that it usually seems to work. Except when you try to restore, and find that you can't.
Apple has published a specification for network devices that work with Time Machine. None of the third-party NAS vendors, as far as I know, meets that specification. They all use the incomplete, obsolete Netatalk implementation of Apple Filing Protocol.
If you want network backup, use as the destination either an Apple Time Capsule or an external storage device connected to another Mac or to an 802.11ac AirPort base station. Only the 802.11ac base stations support Time Machine, not any older model.
Otherwise, don't use Time Machine at all. There are other ways to back up, though none of them is anywhere near as efficient or as well integrated with OS X. I don't have a specific recommendation.
If you're determined to keep using the NAS with Time Machine, your only recourse for any problems that result is to the manufacturer (which will blame Apple, or you, or anyone but itself.)

Time Machine would create a NEW backup

Hello,
sorry for my bad english, I'm not a native speaker.
I'm useing Mac OSX 10.7.3
Since a few days, I've some trouble with Time Machine. When TM would create a new backup in the normal hourly loop it creates the following message:
Time machine has completed the review of its backups. To improve the reliability time machine must create a new backup. (i hope it's the correct translation in englich)
Now I've to options:
1. I can create a new backup later
2. create a new backup
Does anyone knows what is wrong? I don't want to create a new backup, I want to use the old one.
I still have enough space on my backup volume. I'm using the Airport Extreme and a WD hard drive.
Thank you for your assist.
David

Unfortunately, the issue is that the wireless connection isn't fast enough. The error is saying that basically its going to take too long to do the work.
Not sure how apple makes the time capsule faster,but apparently it works.
Apple suggested configuration is either by a direct USB or FireWire connection, or use a time capsule.
Linc is correct in his last post. You can actually plug in your USB drive at random intervals and time machine will see it and do its thing. This will probably work better in the long run, even though you haven't had any issues up until now.

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.

HT3275 My New Time Machine is saying 129 Days to BackUp!

I recently upgraded to Mountain Lion. The time machine disk was full after it's first backup, so I bought a new drive for Time Machine. First, I copied the BackUP's file to the new drive after reformatting correctly. When hooked up, it was just stuck in Preparing mode for a couple of days. So I ended that, thinking that can't be right. I decided to just just trash the old Backup's file and forget about the months of backups I kept. I reformatted the drive and then made it the main Time Machine back up starting from scratch. This things been running for 2 days and it's still saying 129 Days of time to back up. It's got like 5G of 620Gig backed up..
Anyway, this can't be right.. should back up overnight or even 1 day, correct? Why is it sooooooo slow, and only has 5G of the drive backed up after a full day?
Also, I bought a new iMac so that's coming in next week anyway.. but thought I'd get this backed up for now.

I need some clarification.
This discussion area is about Time Capsule..
When you say Time Machine disk was full do you mean Time Capsule?
But the prcess you describe of copying the backup from one disk to another is unlikely.. this is more likely an external drive.
How is this external drive plugged in? How is it formatted?
Please copy one very large file to it and get a peak transfer speed from Activity Monitor.. to make sure it is working ok.
If the internal drive of the computer is corrupt or low reading.. it can be extremely slow to copy files for TM.
Please run a verify of the main drive. To do it properly you should boot from original OS dvd so you can do full disk scan using disk utility.
See A5 here. http://pondini.org/TM/Troubleshooting.html
Fill in the details and then we have some hope of understanding the issue.

Why do I get this message every time I travel with my laptop and then return home: To improve reliability, Time Machine must create a new backup for you.

Why do I get this message every time I travel with my laptop and then return home: "To improve reliability, Time Machine must create a new backup for you."
I get this on my new MacBook Air, but never got it on my old MacBook Pro.
Thanks!

See #C13 in Time Machine - Troubleshooting.

TS1550 Time Machine worked fine w. new HD for 16 backups, but started giving this mssg: [TIME MACHINE COULDN'T COMPLETE THE BACKUP TO "TOSHIBA EXT" ...An error occurred while creating the backup folder]

Time Machine worked fine w. new HD for 16 backups, but started giving this mssg: [TIME MACHINE COULDN'T COMPLETE THE BACKUP TO "TOSHIBA EXT" ...An error occurred while creating the backup folder]

Make sure your hard drive is formatted properly for the operating system installed. Go to Apple menu -> About This Mac to determine what it is. You posted to the 10.5 forum, but your signature says you have 10.9. Here is the tip on what formatting supports what operating systems:
https://discussions.apple.com/docs/DOC-3003

NAS-based Time Machine, Snow Leopard and new backups

Hi all,
I have a new NAS server (Netgear ReadyNAS) and have configured my Snow Leopard MBP to use it for its Time Machine backups.
I create the first backup over gigabit ethernet, and subsequent backups occur over wifi.
This happens as normal for about a week or so, until the following error appears:
"Time Machine completed a verification of your backups. To improve reliability, Time Machine must create a new backup for you.”
So, twice now, I've duly plugged in my MBP and it starts a backup from scratch, copying the usual 450ishGB over onto my NAS. I then disconnect, and the backup works fine for a week or so, until the error appears again.
The only blogpost or help article I could find relating to this is here: http://www.garth.org/archives/2011,08,27,169,fix-time-machine-sparsebundle-nas-b ased-backup-errors.html but when I follow that process, I get the ultimate error:
"** The volume Time Machine Backups could not be repaired."
The backups are perfectly sound - I do a test restore of a random file daily - but this error is very annoying.
Any ideas as to how I could repair it? Or as to what might be going wrong on my backup volume?
Thanks,
Maritn

Let me know if is all ok.
Regards,
Giuseppe Pignataro

I got the message: Time Machine completed a verification of your backups. To improve reliability, Time Machine must create a new backup for you. I got the message: Time Machine completed a verification of your backups. To improve reliability, Time Ma

I got the message:
Time Machine completed a verification of your backups. To improve reliability, Time Machine must create a new backup for you.
Here's what the text of the system.log says when I filter for backupd:
Jan 9 11:37:14 justin-steeds-macbook-pro com.apple.backupd[2618]: Starting standard backup
Jan 9 11:37:14 justin-steeds-macbook-pro com.apple.backupd[2618]: Network destination already mounted at: /Volumes/TimeMachine
Jan 9 11:37:33 justin-steeds-macbook-pro com.apple.backupd[2618]: Recovery backup declined by user.
Jan 9 11:37:33 justin-steeds-macbook-pro com.apple.backupd[2618]: Backup canceled.
Jan 9 11:48:20 justin-steeds-macbook-pro com.apple.backupd[2859]: Starting standard backup
Jan 9 11:48:20 justin-steeds-macbook-pro com.apple.backupd[2859]: Network destination already mounted at: /Volumes/TimeMachine
Jan 9 11:48:42 justin-steeds-macbook-pro com.apple.backupd[2859]: Recovery backup declined by user.
Jan 9 11:48:43 justin-steeds-macbook-pro com.apple.backupd[2859]: Backup canceled.
Jan 9 11:51:07 justin-steeds-macbook-pro com.apple.backupd[2917]: Starting standard backup
Jan 9 11:51:07 justin-steeds-macbook-pro com.apple.backupd[2917]: Network destination already mounted at: /Volumes/TimeMachine
Jan 9 11:51:34 justin-steeds-macbook-pro com.apple.backupd[2917]: Recovery backup declined by user.
Jan 9 11:51:34 justin-steeds-macbook-pro com.apple.backupd[2917]: Backup canceled.
Jan 9 11:53:50 justin-steeds-macbook-pro com.apple.backupd[2987]: Starting standard backup
Jan 9 11:53:50 justin-steeds-macbook-pro com.apple.backupd[2987]: Network destination already mounted at: /Volumes/TimeMachine
Jan 9 11:54:07 justin-steeds-macbook-pro com.apple.backupd[2987]: Recovery backup declined by user.
Jan 9 11:54:07 justin-steeds-macbook-pro com.apple.backupd[2987]: Backup canceled

Since this is a MacBook Pro hardware community, you might get better results by asking your question at the Time Machine forum, located within the Lion discussion group.
https://discussions.apple.com/community/mac_os/mac_os_x_v10.7_lion

Time Machine after migration to new Mac

So, I just got a new Mac, and used the option to copy settings and files from a Time Machine volume to the new machine. Now that everything's run, though, I can't use Time Machine to backup the new Mac -- it says "Volume not found". I've Googled a bit, but most of the troubleshooting seems to assume that the drive is missing or won't mount -- the drive is there, but the Time Machine software won't use it.
What are my options here?

Hi VK
A supplementray question:
I have one i-mac happily backing up with Time Machine to an external hard drive.
I have just bought a second i-mac (stops the fighting!) and propose to use migration assistant to move my [admin] account from the old to the new i-mac leaving two other accounts on the old one. I see from your posts that it seems as if Time Machine will start a new back up series for the new i-mac's back ups. But what about the old i-mac? Will that continue to extend the existing Time Machine back up files, albeit without my transferred account and its files? If so, should I partition the external drive and start the new back ups from the new i-mac on this new partition. I'd like to end up with the old i-mac continuing to build its Time Machine back ups (less my account and its files) and have a new back up series from the new i-mac building to a separate partition on the external drive.
Does this make sense? I can't see an answer in the forum to what must be a reasonably common issue in this expandin mac world.
MVBW
Mervyn

Time Machine ejecting internal hard drive during backup

I originally posted this in the Time Machine group. It was suggested I post to the Xserve group.
We have an XSERVE running 10.6.4 server. It has 2 internal 1TB drives. The plan is to use one as the main drive and the second as a Time Machine backup. This used to work in 10.5, but since about 10.6.2 or so, it has not worked correctly.
Time machine will come on, begin the backup, and then error off with a message that the drive has been ejected. I have erased the drive, but still no joy. I have partitioned the drive, still no joy. I have verified the drive repeatedly, and all is fine. I can copy files to and from the drive until the cows come home, and all works fine, which means I do not think it is the drive itself. Activate TM, however, and it will fail before the first backup is completed. The only way to get the drive back is to do a complete power down and then power up. Needless to say, that is not a good thing for a server that we rely on.
Any ideas?
10/14/10 10:41:27 AM com.apple.backupd1230 Backup content size: 542.8 GB excluded items size: 474.1 GB for volume Server HD 10/14/10 10:41:27 AM com.apple.backupd1230 No pre-backup thinning needed: 82.46 GB requested (including padding), 930.13 GB available 10/14/10 10:41:27 AM com.apple.backupd1230 Waiting for index to be ready (101) 10/14/10 10:41:27 AM mds70 (Normal) DiskStore: Creating index for /Volumes/backup/Backups.backupdb
10/14/10 10:47:38 AM kernel FusionMPT: Notification = 22 (SAS Discovery) for SCSI Domain = 0 10/14/10 10:47:38 AM kernel Discovery condition = 0x000f0001 10/14/10 10:47:38 AM kernel FusionMPT: Notification = 18 (SAS Phy Link Status) for SCSI Domain = 0 10/14/10 10:47:38 AM kernel SAS Phy Link Status: PhyNum = 0, old link rate = 8, new link rate = 0, SASAddress = 50080007002e8c04
10/14/10 10:48:10 AM kernel SCSIPressurePathManager: Timed out waiting for inactive/error path to become active, loops = 0 10/14/10 10:48:10 AM kernel  10/14/10 10:48:10 AM kernel disk0s2: media is not present.
10/14/10 10:48:10 AM com.apple.backupd1230 Stopping backupd because the backup volume was ejected!  10/14/10 10:48:10 AM com.apple.backupd1230 Error writing to backup log. NSFileHandleOperationException:* -NSConcreteFileHandle writeData:: Input/output error 10/14/10 10:48:10 AM com.apple.backupd1230 Error writing to backup log. NSFileHandleOperationException:* -NSConcreteFileHandle writeData:: Input/output error 10/14/10 10:48:10 AM com.apple.backupd1230 Error writing to backup log. NSFileHandleOperationException:* -NSConcreteFileHandle writeData:: Input/output error 10/14/10 10:48:10 AM com.apple.backupd1230 Copied 13416 files (4.0 GB) from volume Server HD. 10/14/10 10:48:10 AM com.apple.backupd1230 Error writing to backup log. NSFileHandleOperationException:* -NSConcreteFileHandle writeData:: Input/output error 10/14/10 10:48:10 AM servermgrd64 servermgr_backup: TimeMachinePostBackupHook called. 10/14/10 10:48:10 AM servermgrd64 servermgr_backup: TimeMachinePostBackupHook done. 10/14/10 10:48:11 AM kernel jnl: disk0s2: close: journal 0xffffff8012b15d20, is invalid. aborting outstanding transactions  

No, it is not always at the same point/file/bytes transferred. It will vary from a few GB (say 3GB) to quite a few GB (say 30GB). I would add amongst the things I have done was to:
Perform numerous Disk Utility Checks. Never any errors found.
Erased the backup drive on multiple occasions. Double checked the GUID and format.
Partitioned the drive and tried backing up to a new partition. (No joy there either)
Copied lots and lots of data from the root disk to said partitions to test them. All went fine.
It really is Time Machine that is causing the issue. I can use the drive all day long as long as TM does not run. When it does, I eventually get a failure message that the drive has been ejected.
While I have not tried making a partition on the home drive (I'd rather not, lots of data there, make users mad, and since TM is not working, I have no backups at present), I do limit the data that is being backed up to JUST that of the system. /Users is being excluded at the moment. So I doubt there is anything out of the ordinary in the system. And, yes, I did a disk check on the root disk and all is fine there too.

Is it possible to reinstall Mac OS X Lion on MacBook and then use Time Machine to restore to the previous backup I made before reinstalling Mac OS X Lion?

Is it possible to reinstall Mac OS X Lion on MacBook and then use Time Machine to restore to the previous backup I made before reinstalling Mac OS X Lion?

My MacBook was not normally booting up. It would turn on, make the Apple startup noise, and the bottom loading bar would progress just a little bit, then my MacBook would shut down. I tried rebooting it many times and the same thing would happen, it would just shut down. Then, I read that I can reset the PRAM (by holding Option+Command+P+R after the Apple startup noise comes). That worked, but now I get a screen that asks me to choose one of the 4 options (see: http://images.macworld.com/images/article/2012/07/lionrecoveryutilities-289404.j pg). I choose Restore From Time Machine Backup, but it progresses to 17.6% and gets stuck there forever. I tried doing it again, and it got stuck at 17.6% again. That is why I am asking if I should just reinstall Lion, then restore a previous backup on the fresh new Lion?

Time machine always propose a new fresh backup

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