Time Machine Error Prevention - Do Not Use "/" Symbols on the names on HD!

This is a warning message:
If your Time Machine Backup Fails with the Message:
"The Backup Was Not Performed Because an Error Occurred while Copying Files To the Backup Disk. The problem May be temporary. Try again later to back up.etc.."
*If you Use Symbols In Your Names DONT!*
*Do Not Use this / slash Symbol on the names of your Hard Drives*! Also check your logs to see if the TM backup is hanging on a file name with : or / symbol.
*Back Story*
I had purchased a new 3TB Western Digital HD and needed to do a full backup. I never had issues with Time Machine before. But After trying 2 times and received the error message I new something was wrong.
I did some research installed the Time Machine Widget and checked Console for the error codes.
I was searching on the forums here and just read a post from Pandini regarding the use of characters in file names. I was having an issue with an error code #2 every time. I reformatted with a GUID Partition (Intel Only) and verified and repaired the disks and permissions on everything was good on all my HD's.
After reading his short post about the characters possibly causing the issue I changed the naming on one of the external USB drives to be backed up.
I had it labeled as "Audio/Video/Docs 1TB."
I changed to: "Audio Video Docs 1TB" then tried the backup again it worked great.
It's amazing how a / slash can hang then entire system. I wish Apple would provide some informational notes about these very very simple subtle issues.
Thanks to Pandini for the post, it was the key clue. Save yourself some time and check your logs and hard drive naming to be sure there are no / Slashes.
Thanks to everyone on the forum for their contributions.

Problem solved. Issue resolved. Problem was due to the : or / symbol in the file or HD name.

Similar Messages

Time Machine Error. Backup is too large for the backup disk. Backup requires 289.28 GB but only 177.01 GB are available.

My Mac has not been backing up for some time. Tried Apple Support, but couldn't figure out problem.
Receive the following error...
Time Machine Error
This backup is too large for the backup disk. The backup requires 289.28 GB but only 177.03 GB are available.

See #C4 in Time Machine - Troubleshooting.
If that doesn't clarify the situation, post back with:
How much data is on your internal HD (and any others being backed-up)?
How large is your Time Capsule?
Is there anything else on the TC besides these backups? If so, what and how large?

Time Machine Error This backup is too large for the backup disk

Hi, I have a 1TB Time Capsule which backs up my Mac. I was having some issues with my mac so I decided to perform an erase and install and then use Migration Assistant to transfer everything back to my Mac.
After I reinstalled Snow Leopard and restored my Mac using Migration Assistant, Time Machine says that the backup has failed. It says " Time Machine Error This backup is too large for the backup disk. The Backup requires 663 GB but only 255 GB are available.
What do I do? Is my only option to erase my Time Capsule and have it back everything up from scratch?

Hi, thanks for the help. I erased everything off of the Time Capsule and it's backing up my Mac from scratch. It's almost finished backing up my whole mac. It's now at 641.86gb of 646.54gb but it's now backing up very slowly. It's backing up .1 every few minutes. Is this normal?
Here's the log from Time Machine Buddy:
Starting standard backup
Attempting to mount network destination using URL: afp://Stuart%[email protected]/Time%20Capsule
Mounted network destination using URL: afp://Stuart%[email protected]/Time%20Capsule
Creating disk image /Volumes/Time Capsule/StuartsMacPro.sparsebundle
QUICKCHECK ONLY; FILESYSTEM CLEAN
Disk image /Volumes/Time Capsule/StuartsMacPro.sparsebundle mounted at: /Volumes/Time Machine Backups
Backing up to: /Volumes/Time Machine Backups/Backups.backupdb
Ownership is disabled on the backup destination volume. Enabling.
Detected system migration from: /Volumes/My Book
Backup content size: 850.0 GB excluded items size: 606.5 GB for volume Stuart's Drive
Backup content size: 425.9 GB excluded items size: 67.3 GB for volume Macintosh HD
No pre-backup thinning needed: 722.56 GB requested (including padding), 928.68 GB available
Waiting for index to be ready (101)
Copied 28.3 GB of 602.1 GB, 29340 of 1478089 items
Copied 55.0 GB of 602.1 GB, 41596 of 1478089 items
Copied 82.9 GB of 602.1 GB, 55899 of 1478089 items
Copied 110.7 GB of 602.1 GB, 63347 of 1478089 items
Copied 138.8 GB of 602.1 GB, 83831 of 1478089 items
Copied 166.8 GB of 602.1 GB, 94574 of 1478089 items
Copied 194.7 GB of 602.1 GB, 102854 of 1478089 items
Copied 222.8 GB of 602.1 GB, 114388 of 1478089 items
Copied 129159 files (242.5 GB) from volume Stuart's Drive.
Copied 248.4 GB of 602.1 GB, 130414 of 1478089 items
Copied 265.5 GB of 602.1 GB, 355699 of 1478089 items
Copied 293.6 GB of 602.1 GB, 382912 of 1478089 items
Copied 322.1 GB of 602.1 GB, 387974 of 1478089 items
Copied 349.8 GB of 602.1 GB, 399204 of 1478089 items
Copied 378.3 GB of 602.1 GB, 399358 of 1478089 items
Copied 406.9 GB of 602.1 GB, 399441 of 1478089 items
Copied 434.5 GB of 602.1 GB, 415817 of 1478089 items
Copied 461.5 GB of 602.1 GB, 471528 of 1478089 items
Copied 488.2 GB of 602.1 GB, 537277 of 1478089 items
Copied 515.1 GB of 602.1 GB, 580446 of 1478089 items
Copied 541.3 GB of 602.1 GB, 590386 of 1478089 items
Copied 566.8 GB of 602.1 GB, 602496 of 1478089 items
Copied 593.3 GB of 602.1 GB, 649575 of 1
Message was edited by: Stuart Lawrence
Message was edited by: Stuart Lawrence

HELP! time machine error - sparsebundle could not be accessed (error -1)

my time machine cannot do backups anymore. Keep getting the same error message:
sparsebundle could not be accessed (error -1)
anyone out there know how to fix?

Standard message and second most common error here.
Look at the "More Like This" on the right.
Simply power cycle the TC will usually fix it.
See C17 for more info.
http://pondini.org/TM/Troubleshooting.html
C12 is the most common problem.. btw.. and is fixed also with a power cycle.
Power Cycle means.
Make sure the disk is not spinning. You hand can feel the vibration of the disk.
Pull out the power cord.. (since there is no power switch).. count to 10 to allow capacitors to drain.. Plug in the power cord.

TIME MACHINE Error: This backupup is too large for the backup volume ...

Hi Folks !
I have also my first problems with TM. It was running, the first time nicht&day to make the first backup and now seems the device to be full! This TimeMachineError was displayed:
This backup is too large for the backup volume. The backup requires 127.5 GB but only 46.5 are available. To select a larger volume, or make the backup smaller by excluding files, open System Preferences and choose Time Machine.
END OF ERROR Message
First thing > if I choose SystemPrefs/TM there is no chance to exclude file or folders the only dialog is for Volumes
Any Idea ?
Are the TM Preferences corrupted or why I cannot choose to define my backup ?
Ciao
Massimo

When my Time Machine disk had only 50GB left, I got the message that it couldn't back up because it required 118GB to do so. Because there was, for some reason, only one day backed up, I deleted the backup files to start fresh. Now I am getting the message:
"This backup too large for the backup volume. The backup requires 1056.6 GB but only 929.4 GB are available."
Well, the backup only require 118GB a little while ago, and the initial full backup that I deleted was 880 GB. Nothing has been added to the startup disk, and a 400GB disk has been excluded to try to make this work, so this message can't be right.
How do I make this work? Do I have to keep reinstalling Time Machine every time I want to backup?

Time machine error message "will not connect"

When trying to back up to Time capsule using Time machine I get this error message "The backup disk is not available." for my iMac. However, I can browse my Time Capsule using Time maching so I'm pretty sure they can connect. My wife gets the same for her Time Machine using a external hard drive with her MacBook Pro. It all started a week ago... Any suggestions?
Cheers
/Mårten
PS
And why can't I ask apple about this???

Hi, and welcome to the forums.
That's a +Network Drive,+ and TIme Machine doesn't work well, if at all, with non-Apple network drives.
See: http://docs.info.apple.com/article.html?path=Mac/10.6/en/15139.html
But check the WD website, for an update that might help: http://www.wdc.com/en/products/products.asp?driveid=589
If none of that helps, there's a chance that changing some of the names might help. See #C9 in the Time Machine - Troubleshooting *User Tip,* also at the top of this forum.
If still no help, copy and post all the messages here, but don't replace the names with asterisks -- we can't tell if there's a problem with them if we can't see them.

Time Machine & external hard drives not used daily

I have a question about Time Machine and external hard drives that I used for storing digital files. I do not need to turn on these drives every day. Or even every week. Is Time Machine going to "forget" them (delete their files from backups) if I don't turn them on regularly? What do I do to make sure they are safely backed up and that they stay backed up even if they aren't turned on every day?

As I said, then, "Time Machine will simply pick up wherever it left off." Just be sure to properly eject the drive before disconnecting or shutting off.
The "speed" question is a new one not present in your original post. You can address that in the following:
Kappy's Personal Suggestions About Mac Maintenance
For disk repairs use Disk Utility. For situations DU cannot handle the best third-party utility is: Disk Warrior; DW only fixes problems with the disk directory, but most disk problems are caused by directory corruption. Drive Genius provides additional tools not found in Disk Warrior for defragmentation of older drives, disk repair, disk scans, formatting, partitioning, disk copy, and benchmarking.
Four outstanding sources of information on Mac maintenance are:
1. OS X Maintenance - MacAttorney.
2. Mac maintenance Quick Assist
3. Maintaining Mac OS X
4. Mac Maintenance Guide
Periodic Maintenance
OS X performs certain maintenance functions that are scheduled to occur on a daily, weekly, or monthly period. The maintenance scripts run in the early AM only if the computer is turned on 24/7 (no sleep.) See Mac OS X- About background maintenance tasks. If you are running Leopard or later these tasks are run automatically, so there is no need to use any third-party software to force running these tasks.
If you are using a pre-Leopard version of OS X, then an excellent solution is to download and install a shareware utility such as Macaroni, JAW PseudoAnacron, or Anacron that will automate the maintenance activity regardless of whether the computer is turned off or asleep. Dependence upon third-party utilities to run the periodic maintenance scripts was significantly reduced after Tiger. (These utilities have limited or no functionality with Snow Leopard, Lion, or Mountain Lion and should not be installed.)
Defragmentation
OS X automatically defragments files less than 20 MBs in size, so unless you have a disk full of very large files there's little need for defragmenting the hard drive except when trying to install Boot Camp on a fragmented drive. But you don't need to buy third-party software. All you need is a spare external hard drive and Carbon Copy Cloner.
Cheap and Easy Defragmentation
You will have to backup your OS X partition to an external drive, boot from the external drive, use Disk Utility to repartition and reformat your hard drive back to a single volume, then restore your backup to the internal hard drive. You will use Carbon Copy Cloner to create the backup and to restore it.
1. Get an empty external hard drive and clone your internal drive to the
       external one.
2. Boot from the external hard drive.
3. Erase the internal hard drive.
4. Restore the external clone to the internal hard drive.
Clone the internal drive to the external drive
1. Open Carbon Copy Cloner.
2. Select the Source volume from the left side dropdown menu.
3. Select the Destination volume from the left side dropdown menu.
4. Be sure the Block Copy button is not depressed or is ghosted.
5. Click on the Clone button.
Destination means the external backup drive. Source means the internal startup drive.
Restart the computer and after the chime press and hold down the OPTION key until the boot manager appears. Select the icon for the external drive and click on the upward pointing arrow button.
After startup do the following:
Erase internal hard drive
1. Open Disk Utility in your Utilities folder.
2. After DU loads select your internal hard drive (this is the entry with the
       mfgr.'s ID and size) from the left side list. Note the SMART status of the
       drive in DU's status area. If it does not say "Verified" then the drive is
       failing or has failed and will need replacing. SMART info will not be
       reported on external drives. Otherwise, click on the Partition tab in the
       DU main window.
3. Under the Volume Scheme heading set the number of partitions from the
       drop down menu to one. Set the format type to Mac OS Extended
       (Journaled.) Click on the Options button, set the partition scheme to
       GUID then click on the OK button. Click on the Partition button and wait
       until the process has completed.
Restore the clone to the internal hard drive
1. Open Carbon Copy Cloner.
2. Select the Source volume from the left side dropdown menu.
3. Select the Destination volume from the left side dropdown menu.
4. Be sure the Block Copy button is not selected or is ghosted.
5. Click on the Clone button.
Destination means the internal hard drive. Source means the external startup drive.
Note that the Source and Destination drives are swapped for this last procedure.
Malware Protection
As for malware protection there are few if any such animals affecting OS X. Starting with Lion, Apple has included built-in malware protection that is automatically updated as necessary. To assure proper protection, update your system software when Apple releases new OS X updates for your computer.
Helpful Links Regarding Malware Protection:
1. Mac Malware Guide.
2. Detecting and avoiding malware and spyware
3. Macintosh Virus Guide
For general anti-virus protection I recommend only using ClamXav, but it is not necessary if you are keeping your computer's operating system software up to date. You should avoid any other third-party software advertised as providing anti-malware/virus protection. They are not required and could cause the performance of your computer to drop.
Cache Clearing
I recommend downloading a utility such as TinkerTool System, OnyX 2.4.3, Mountain Lion Cache Cleaner 7.0.9, Maintenance 1.6.8, or Cocktail 5.1.1 that you can use for periodic maintenance such as removing old log files and archives, clearing caches, etc. Corrupted cache files can cause slowness, kernel panics, and other issues. Although this is not a frequent nor a recurring problem, when it does happen there are tools such as those above to fix the problem.
If you are using Snow Leopard or earlier, then for emergency cleaning install the freeware utility Applejack. If you cannot start up in OS X, you may be able to start in single-user mode from which you can run Applejack to do a whole set of repair and maintenance routines from the command line. Note that AppleJack 1.5 is required for Leopard. AppleJack 1.6 is compatible with Snow Leopard. (AppleJack works with Snow Leopard or earlier.)
Installing System Updates or Upgrades
Repair the hard drive and permissions beforehand.
Update your backups in case an update goes bad.
Backup and Restore
Having a backup and restore strategy is one of the most important things you can do to maintain your computer. Get an external Firewire drive at least equal in size to the internal hard drive and make (and maintain) a bootable clone/backup. You can make a bootable clone using the Restore option of Disk Utility. You can also make and maintain clones with good backup software. You can never have too many backups. Don't rely on just one. Make several using different backup utilities. My personal recommendations are (order is not significant):
     1. Carbon Copy Cloner
     2. Get Backup
     3. Deja Vu
     4. SuperDuper!
     5. Synk Pro
     6. Tri-Backup
Visit The XLab FAQs and read the FAQs on maintenance and backup and restore.
Always have a current backup before performing any system updates or upgrades.
Final Suggestions
Be sure you have an adequate amount of RAM installed for the number of applications you run concurrently. Be sure you leave a minimum of 10% of the hard drive's capacity or 20 GBs, whichever is greater, as free space. Avoid installing utilities that rely on Haxies, SIMBL, or that alter the OS appearance, add features you will rarely if ever need, etc. The more extras you install the greater the probability of having problems. If you install software be sure you know how to uninstall it. Avoid installing multiple new software at the same time. Install one at a time and use it for a while to be sure it's compatible.
Additional reading may be found in:
1. Mac OS X speed FAQ
2. Speeding up Macs
3. Macintosh OS X Routine Maintenance
4. Essential Mac Maintenance: Get set up
5. Essential Mac Maintenance: Rev up your routines
6. Five Mac maintenance myths
7. How to Speed up Macs
8. Myths of required versus not required maintenance for Mac OS X
Referenced software can be found at CNet Downloads or MacUpdate.
Most if not all maintenance is for troubleshooting problems. If your computer is running OK, then there isn't really a thing you need to do except repair the hard drive and permissions before installing any new system updates.

Time Machine Error - sparsebundle could not be accessed

I have a time capsule shared by an old MacPro and a new MacBook. I get this message when trying to run a backup from the MacPro:
Time Machine Could Not Complete the Backup. The backup disk image "/Volumes/Data/XXX.sparsebundle" could not be accessed (error -1).

Standard message and second most common error here.
Look at the "More Like This" on the right.
Simply power cycle the TC will usually fix it.
See C17 for more info.
http://pondini.org/TM/Troubleshooting.html
C12 is the most common problem.. btw.. and is fixed also with a power cycle.
Power Cycle means.
Make sure the disk is not spinning. You hand can feel the vibration of the disk.
Pull out the power cord.. (since there is no power switch).. count to 10 to allow capacitors to drain.. Plug in the power cord.

Time Machine error - backup drive not mounted

Our family has 3 iMacs now running 10.5. One has a hard drive connected to it. The others are networed via a couple of Airport Extremes. The network is fine (all have internet). Time Machine is running fine on the iMac connected to the hard drive and on one of the others via the network.
But on the 3rd I keep getting an error that the backup drive is not mounted. It can mount it manually and see it (and its files) fine. The hard drive is configured so that everyone has read & write access. I've tried restarting it and resetting prams. I've tried connecting to the hard drive as a guest and as an authorized user. I still get the same error.
Any ideas? Thanks.

It seems to be working now. I trashed the old sparsebundle file and let it start from scratch. Wish I thought of that earlier .......
Message was edited by: Neil Stone

Hi - i got a problem with time capsule stating all of a sudden: time machine error (-1) could not access the image (Name) Macintosh.sparsebundle

Hi - can anybody support me with a time capsule error message (-1) : could not access macintosh.sparesbundle? mny TXS

This is a Lion bug. compounded probably by the bugs in 7.6 and later firmware of the TC.
Rebooting the TC is disconnecting the users .. Lion is failing to unmount the TC after a backup. Reboot is forcing it to do so.
But if you download and install the non-toy version airport utility for lion.. which still has a disk page.
http://support.apple.com/kb/DL1482
Install and run that exclusively, on the disk page is a simple icon, disconnect all users.. wonder why they have that icon.. well now you know. So you don't need to reboot the TC. Just press the button (icon) so to speak.
The grand guru poobah of TM.. all knowing all seeing Pondini.. has written a KB to help poor struggling padawans.. commonly known as grasshopper.
http://pondini.org/TM/Troubleshooting.html
See C17.. there are a couple of other issues that cause it.. but just get your bug nets.. !!

Time Machine Error - Backup Requires 2,211,365.5 GB!

Hello - I have searched the posts and nothing seems to touch on this specifically - I have been using Time Machine successfully for months and this has only started to happen in the last few days.
I have a white Macbook, 10.5.6 with an upgraded 150GB hard drive. I do backups sporadically (once or twice a week), as I don't want to keep my Macbook connected to a hard drive and I find using the airdisk feature on my AEBS takes too long and slows down the network. This has been working fine for me for months, but now I get the following message:
Time Machine Error
This backup is too large for the backup volume. The backup requires 2211365.5 GB but only 125.5 GB are available.
I tried reformatting my disk (250GB hard drive) and the problem still arises. There are no external drives or anything connected to the Macbook at the time.
Can anyone help? I don't want to go out and buy a Hard Drive with a 3million GB capacity!
Thanks
Ian

ChunTzu wrote:
If TM is seeing a ridiculous amount of info to backup like that (2 million gigs is probably not a real number I am guessing) it probably means you have file structure problems that are causing TM to count a folder infinitely in some kind of loop... like maybe a file link to itself that kind of thing.
A disk check usually repairs these sorts of problems and should alleviate your issue.
I believe you are correct and I would add that this case might require stronger medicine such as DiskWarrior to repair the directory structure, if that it the issue.

Time Machine Error with weird math

Not sure what's the cause of this, but suddenly TM is not backing up. I get this error:
"Time Machine Error
This backup is too large for the backup volume. The backup requires 442.3 MB but only 23.6 GB are available."
How can this be? Only 442 mb needed for the backup, yet I have 50 times that much space available on the TM volume? The only new things on my computer are iTunes 8 and its Front Row update from a couple of days ago. This TM error started sometime last night.
TIA.

Tony,
This is what I have been able to discover about this particular error message.
Sometimes, this error is legitimate. The user may not realize that they need to exclude additional hard disks that TM may be seeing. This is done in the “Options…” window of the Time Machine Preferences.
Nevertheless, many times this error just doesn’t make sense, stating that not enough free space exists for a backup that is clearly smaller. (“The backup requires 45.9 GB but only 182.6 GB are available”)
The answer and fix may have been discovered by a poster in the macosxhints forums: (http://forums.macosxhints.com/archive/index.php/t-84284.html)
Essentially, while Time Machine DOES delete old backups from the sparsebundle, it DOES NOT free up the space occupied by those old backups. Eventually, "all previous backups were deleted and no space was gained. . . . What appears to be going on here is that the sparsebundle isn't self-shrinking - unused bands aren't being automagically discarded."
The solution is to compact the TM backup sparsebundle in Terminal using:
hdiutil compact yoursparsebundlefilename.
He concludes, "I gained 30+gb of space on the backup volume by compacting that sparsebundle. And now TM runs just fine, since it has plenty of space."
Obviously, this is a bug in TM. It does not appear to effect everyone, and only seems to appear under certain curcumstances.
Let us know if this works for you.

Time Machine Error, Backup to large - 496 avail and only 79 needs backed up

I have a 1 TB TM with 496.9 GB available (I already have 1 computer backed up on TM)
The second computer I want to back up has 80 GB used of a 500 GB HD.
Time Machine prefs show 496.9 GB available on TM and shows the back up will be 79.1 GB total.
But I get a error each time I try to back up saying " Time Machine Error, This backup is too large for the backup volume. The backup requires 614.1 GB but only 496.9 are available."
Two questions:
How can 496.9 GB be to small for a 79.1 GB backup?
Why does a 79.1 GB backup require 614.1 GB of space?
Thank You
Doug

Here's what Backup Buddy says:
Starting standard backup
Backup destination alias resolved to path: /Volumes/Doug's Time Capsule
Disk image /Volumes/Doug's Time Capsule/Jackie’s_001b63b59975.sparsebundle mounted at: /Volumes/Backup of Jackie’s
Backing up to: /Volumes/Backup of Jackie’s/Backups.backupdb
Event store UUIDs don't match for volume: Backup of Jackie’s
Event store UUIDs don't match for volume: Macintosh HD
Backup content size: 432.7 GB excluded items size: 0 bytes for volume Backup of Jackie’s
Backup content size: 80.2 GB excluded items size: 1007.5 MB for volume Macintosh HD
Starting pre-backup thinning: 614.25 GB requested (including padding), 496.85 GB available
No expired backups exist - deleting oldest backups to make room
Error: backup disk is full - all 0 possible backups were removed, but space is still needed.
Backup Failed: unable to free 614.25 GB needed space
Backup failed with error: Not enough available disk space on the target volume.
Ejected Time Machine disk image.
Ejected Time Machine network volume.

Time Machine Error after moving disk to Airport Extreme

I have been using Time machine with a 1 TB, WD MyBook hard drive for the past 2 weeks with no problem. The drive had been connected directly to my Macbook Pro, via the Firewire 800 cable.
Today, I moved the drive and connected it via USB to my Airport Extreme Base Station version 7.3.1.
When Time Machine tried to create the next scheduled backup, I got the following error:
*Time Machine Error*
"This backup is too large for the backup volume. The backup requires 159.8 GB but only 159.1 GB are available.
To select a larger volume, or make the backup smaller by excluding files, open System Preferences and choose Time Machine"
It seems to me that Time machine is trying to do a brand new backup instead of the incremental one its supposed to do.
How can I fix this and have TM recognize that there is already a backup sequence in the disk?
Thanks for your help.

Time Machine uses a different method for creating its archive, depending on how the backup disk is connected. When using a directly connected drive, it uses a time-stamped folder structure. When using a networked disk, it uses a sparse disk image format. Therefore, when you connected that drive to the base station, Time Machine was trying to create a new sparse image archive with the leftover space. It did not find enough space, since your direct connect Time Machine archive was taking up too much space already.
If you want to use it over the network, you'll have to erase the drive and start over with Time Machine.

Time machine error: doesnt backup due a wrong calculation of space availab

296.4 GB are bigger than 6.8 GB, isnt it?
well, time machine is not doing the backup because detects that 296.4GB are lower than 6.8GB !!!
Time machine error:
This backup is too large for the backup volume. The backup requires 6.8 GB but onlye 296.4 GB are available.
To select a lrger volume, or to make the backup smaller by excluding files, open sustem preferences and chose Time Machine
any idea how to correct this error?
thanks a lot

296.4 GB are bigger than 6.8 GB, isnt it?
well, time machine is not doing the backup because detects that 296.4GB are lower than 6.8GB !!!
Time machine error:
This backup is too large for the backup volume. The backup requires 6.8 GB but onlye 296.4 GB are available.
To select a lrger volume, or to make the backup smaller by excluding files, open sustem preferences and chose Time Machine
any idea how to correct this error?
thanks a lot

Time Machine Error Prevention - Do Not Use "/" Symbols on the names on HD!

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