Time Machine Corrupted (every 3-8 days)

Hi,
I have a Synology NAS (DS212+) and I one hard drive for my time Machines backup and as you know it takes days to backup all your PCs with time Machine and after few days I get this message :
It's all ready the 3rd times it doing it and restarting the time machine from scratch, very frustrating.
I'm not sure if it's a fault from DSM 4.0-2228 (latest version) or Mac OS X 10.7.4
Does anyone experience the same issue ? Any solutions? :cry:

Hi, the error message is “Time Machine completed a verification of your backups. To improve reliability, Time Machine must create a new backup for you.”
Thank you very much your link took me to the Apple Supports page : http://support.apple.com/kb/HT4076?viewlocale=en_US&locale=en_US
I will try it out and hopefully that will fix the issue.
Thanks

Similar Messages

Very frequent Time Machine corruption since I upgraded to Mountain Lion

Since I upgraded to Mountain Lion, I encounter very frequent Time Machine corruption.
A few backups are OK, and then, I get an error "Time Machine has verified your backups and needs to create a new copy in order to enhance fiability...".
In the console, I can see a lot of these errors :
29/07/12 11:10:33,384 com.apple.backupd[17480]: Error (256): fetching properties: Error Domain=NSCocoaErrorDomain Code=256 "The file “objects.xib” couldn’t be opened." UserInfo=..... {NSURL=file://localhost/Volumes/Copies%20de%20sauvegarde%20Time%20machine/Backu ps.backupdb/...objects.xib, NSFilePath=/Volumes/Copies de sauvegarde Time machine/Backups.backupdb/....objects.xib, NSUnderlyingError=... "The operation couldn’t be completed. Input/output error"}
29/07/12 11:37:53,834 com.apple.backupd[17758]: Error: (-5000) SrcErr:NO Copying /Applications/VLC.app/...
29/07/12 11:47:52,633 com.apple.backupd[17758]: Error: (-43) SrcErr:NO Copying /Applications to /Volumes/Copies de sauvegarde Time machine/Backups.backupdb/...
Everything has been working perfectly well on OSX Lion for months...
I already have reselected my Time Machine volume, and already have accepted a full new backup (3 times !) and it always finish like this...
Any idea ?

I had the same general problem: every few minutes I would get the message "There was a problem connecting to the server 'myserver'. Contact your system administrator for more information."
The problem went away for me when I reset the sync server.
http://support.apple.com/kb/TS1627
I hope this works for others as well.

Why is my time machine back-up is taking days?

I have recently had a problem with y time machine. Below is the story in short:
- Never had a problem with time machine backup
- Left for a few weeks as I was moving home
- Plugged in time machine. Error message saying 265Gb to back up but only 253gb worth of space
- Apple took me through variuos proceudre but in the end resulted in me wiping all backup's and re-formatting hard drive
- The time-machine has been running for days.
- I only have a 250gb harddrive. Its backed up 270gb.
- As i am writing this message it seems to be stuck on 26.3mb of 46mb and has been for the past hour
- What is going on???? Someone help!!! I need to upgrade my hard drive. I really cant be bothered to sit on the phone to an advisor for another hour!!!

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

I've lost my photos (crashed hdd, iPhoto library on Time Machine corrupt too). Is there a way to create a picture from the thumbnail that remains in iPhoto? The quality is obviously poor, but better than nothing.

I've lost my photos (crashed hdd, iPhoto library on Time Machine corrupt too). Is there a way to create a picture from the thumbnail that remains in iPhoto? The quality is obviously poor, but better than nothing.

Time machine should have a good copy - how are you determining that it is corrupt
If you want the thumbnails as photos right click on the iPhoto library and make a copy of the data folder and then import it into a new iPhoto library - it contains your thumbnails
LN

Time Machine is estimating 1,302 days to do a backup for 520gigs

Hello,
I have a brand new 1.5 tb hardrive to use as my time machine backup. It is formatted mac os journald extended. I was able to manually copy the computers hard drive in about 3 to 6 hours on the same drive. But when I turn the time machine back up on to back up the same amount of space it says that Time Machine is estimating 1,302 days to do a backup for 520gigs.
How do I get this to work properly?

Cancel and try again - or just sit it out for a day and see if that estimate doesn't go down. I've never seen a Time Machine backup display that kind of message. Even my first - way back when - didn't take over 4 hours.
How is your external drive connected? USB 2.0 or 3.0? Firewire? Do you have it partitioned? What did you use to copy the contents of your internal drive to your external?
At this point, there's no question that you should just cancel the backup. But I'd like to know how you're connected, if you've partitioned the drive, and if you have erased the drive after you copied over the contents of your hard drive. Time Machine doesn't like other data on the backup drive - could this be a problem?
Clinton

Time Machine is only keeping one day. Im missing ALL other BU, please help

TM has been telling me that there is not enough space to complete a back up. However, when I enter time machine there is only 1 day of back ups. When I go to TM Preferences and select disk there are now 2 Data Disks, where there only used to be one. When I click on Data under "Backup Disks it asks me if I want to remove the disk. I have cancled this action and clicked on Data under Available Disks and I am still getting a not enough memory error. (26.6G 999MB left) .
I have searched the web and found http://pondini.org I followed a few options there. One, I have done a complete reset of the TM by removing the .plist file.
When that didnt work I tried to remove the .sparebundle file under Disk Utility. The TM wouldnt mount therefore I was unable to finsd the .sparsebundle
If anyone could help that would be fantastic. I have several years of BU on this TM and pics of my kids to loose those would be devistating.

pinkberrykay wrote:
When I open up my data file there is a pic of my HD called Sparse Bundle. There are 3 different sparse bundles listed under the center column. iMac, my Macbook and a Macbook Pro.
Right. Those are the containers for the backups of each Mac.
I posted a screen shot of what I was referring to above. I am unable to click on the Back Up Destination
You don't need to, but if you select Data under Available Disks, that will re-select it -- re-establish the info TM needs to locate it.
As far as my iMac, I am not sure what happend but I had to delete the entire HD and reinstall the operrating system.
Ah, that's part of the problem. Exactly how did you put your data back? When your Mac started up after installing OSX, you saw this window:
Which option did you take? It sounds like you selected Not Now and created a user account. If so, what have you done since then?
According to my TC I have not backed up in 63 days and but there is nothing there.
Depending on what you did, Time Machine is treating the erased disk as being a different one from your backups. It will do a full backup of the "new" drive, space permitting.
My TC is 4 years old and is 1 TB. TC shows 23.5 of 998 GB available. My TC shows it has stuff on there I just cant gett to it.
If the new drive is being treated as a different one, you should be able to see the old backups via the procedure in the green box of #E3 in Time Machine - Troubleshooting. Don't try to restore anything from there just yet, though.
TC is now showing the latest BU as of June 30, 2013, before it would say none. It is not showing an estimated BU becuse it is "preparing backup"
If you can see the older backups as above, cancel the current backup. That will save some space.
Post back with details of what you did after the reinstall, and your results.

Last Time Machine back-up is 45 days old and only of User Account files (not entire HD) and I must now reinstall Lion without being able to perform a new back-up. Will any new User Account files, since my last back-up, be lost when Lion reinstalls (via i

My last Time Machine back-up is 45 days old and only of User Account files (not entire HD) and I must now reinstall Lion (via internet) without performing a new back-up. Will any new User Account files, since my last back-up, be lost when Lion reinstalls ?

Reinstalling OS X doesn't affect user data, provided nothing goes wrong. But it would be very unwise to assume that nothing will go wrong, especially if you're having (unspecified) system issues. You should try to back up all data before you reinstall or do anything else. There are ways to do that, even if you're unable to boot.
If your backups include only user files, you won't be able to access them in Setup Assistant.

Time machine still backing up 4 days later...

My wife found that while working at home Time Machine was causing pauses which were hindering her productivity. So she disabled it, desciding to manually do backups every week (she dosn't need hourly backups, heck, who does?). Some time passed and she skipped a backup, so two weeks later she sets the backup to go and it's moving painfully slow.
After 48 hours 128megs of 64 gigs was copied. I checked Activity Monitor and the network traffic is moving at 30-50kb/sec output. We don't know whats going on, it's only been 2 weeks and she hasn't changed that much. She has no virus programs running, both the HD and Time Capsule are formatted Journled, Spotlight dosn't index the Time Machine (I've been reading through forum posts looking for answers) but none of these things have affected the backup speed.
At this rate it'll be backing up for a month or more. 4 Days in she's just several hundred megs backed up. Help!

* Set computer not to sleep for the initial backup and turn Spaces off while doing the initial full backup. Best to do this at the end of the day when you aren't using your computer and it's not competing for CPU.
* If you have antivirus software, turn off during initial backup and check it's setting for regular backups. Initially every file was being scanned by virus software before allowing Time Machine to copy making for extremely long times to backup. Some have updated for Leopard to exclude it on Time Machine.
* A corrupt file can cause Time Machine to fail. You have to exclude folders to find the culprit. Using Migrate can help identify the problem. Some reported even one .JPG corrupt file stopped Time Machine from completing.
* if it's an Intel based machine, the partition needs to be GUID
* Exclude VMWare Virtual Machines

Time Machine corrupting external USB hard drives

In February I installed two Mac Minis running 10.8 Server. Each machine had an external hard drive connected to it.
Sometime over the Labor Day weekend, both drives stopped working. When I came in Tuesday, each machine had a message on the screen that the Time Machine drive had been improperly ejected. I powered down both drives and then powered them back up. Here's what is going on with each machine:
MACHINE #1:
Has a Western Digital 1TB drive formatted as OS X Extended Journaled.
Disk Utility is able to see the external drive; however, whenever I try to back up, I get the message "Time Machine couldn't complete the backup... Files can't be copied onto the backup disk because it appears to be read-only."
In Disk Utility, if I select the partition and Verify Disk, I get the message "Disk Utility stopped verifying Backup. Couldn't unmount disk."
When I try to reformat the drive, I get the message "Disk Erase failed. Disk Erase failed with the error: Couldn't unmount disk."
The Time Machine System Preference pane shows "None" for both oldest and latest backup times; however, I am able to enter Time Machine and see files going back to April.
MACHINE #2
Has a Segate 2TB drive formatted as OX X Extended Journaled.
Initially Disk Utility would recognize this drive about 50% of the time. I would power it down and back up. Sometimes it would appear in Disk Utility, sometimes it wouldn't. Whenever I would try to verify or repair this disk, it would immediately unmount and I would get the message that the disk was not ejected properly. When I try to backup using Time Machine, TM acts like it is preparing to back up and then the disk disappears from Disk Utility and from the Desktop and I get the message that The disk was not ejected properly.
This machine showed it was last backed up on September 1.
After fiddling with it, I was able to format the drive. After formatting the drive, I started a Time Machine backup and the drive unmounted again.
It seems that some event over the weekend caused both drives to corrupt. There was no sign of a power-outtage. Can anyone suggest how I can track down what caused this? Would there have been a maintenance script that would have run on Sept 1 that could have messed both drives up? Some other system event? Losing the data isn't a big deal. I just want to make sure I prevent whatever caused this in the future. Any tips would be much appreciated.

Yeah, I don't know much about the logs. I flipped through some using Console but didn't really know what I was looking for. I was hopeing to see an event that was followed by a notice that the USB drives had been improperly ejected since that was a message I received on both machines.
Since both machines were affected at the same time it seems logical it would be a scheduled event or, as you suggested, some power issue.

Time Machine skips every backup

My problem is similar to the one described in this thread - TM sometimes skips backup. The difference is that my Time Machines is skipping every backup.
The Preferences panel will show that a backup is scheduled for 7:12 PM. I watch for backup activity in the panel but the only thing that happens is that at 7:13 the next backup is set for 8:12 PM. This happens every hour.
Using the Console utility, I find no errors logged. If I select "Back Up Now" from the Time Capsule menu bar icon I get a perfectly good backup.
Time Machine is backing up to Apple's Time Capsule. I started using the Time Capsule 8 months ago and, until 10 days ago, everything worked fine. I have two computers backing up to the same Time Capsule. Both of them stopped backing up automatically on the same date. The Time Capsule has a 2 TB capacity and 1.84 TB is available.
I tried removing the Time Machine plist from the Preferences folder. I reselected the Time Capsule and initiating a backup but automatic backups have not resumed.
Any suggestions for a solution will be greatly appreciated.

Thank you for your suggestions. Here are my results.
A4 - Done.
A1 - Done. The widget show me the last three manual backups. There is no indication of any of the skipped automatic backups.
Here's the widget log for the most recent manual backup:
Starting standard backup
Network destination already mounted at: /Volumes/Backup-1
Disk image already attached: /Volumes/Backup-1/iMac.sparsebundle, DIHLDiskImageAttach returned: 35
Disk image /Volumes/Backup-1/iMac.sparsebundle mounted at: /Volumes/Time Machine Backups
Backing up to: /Volumes/Time Machine Backups/Backups.backupdb
638.5 MB required (including padding), 1.73 TB available
Copied 5695 files (21.0 MB) from volume Too much time.
613.4 MB required (including padding), 1.73 TB available
Copied 1534 files (93 bytes) from volume Too much time.
Starting post-backup thinning
Deleted /Volumes/Time Machine Backups/Backups.backupdb/iMac/2012-07-26-185548 (23.5 MB)
Post-back up thinning complete: 1 expired backups removed
Backup completed successfully.
Ejected Time Machine disk image.
Ejected Time Machine network volume.
C2 - No error messages appear in the Time Machine Preferences panel. "Latest Backup:" shows the time of the last manual backup (created by clicking "Back Up Now" from the Mac's menubar.)

Time Machine corrupting file system

I've been using Time Machine on an external hard drive for a long time with success. Recently the volume got corrupted and I could not repair it from disk utility. After formatting the drive I did backups for a few more days and it happened again. I used diagnostic tools from the disk manufacturer and they did not indicate any physical failure in the equipment.
Has anyone had a similar experience?
Thanks in advance!

That misbehavior is typical of a failing disk, diagnostics or not. Replace it.

Time machine back up taking 1 day so removed external HD, now taking TWO days?

Hi,
I started my time machine back up last night and the estimated time it said it would take was 1 day. I woke up this morning and there was still another 15 hours left. I am only backing up 533GB - is this normal?
I thought maybe my external drive was effecting the backup so I removed it and when I did the time machine started again, now backing up 324 GB but says it's going to take TWO days?! This makes no sense.
Could someone tell me - is it normal for TM to take a day to back up 533GB (certainly can't be normal for 324GB to take TWO)?
And what are the general tips for helping time machine move faster? I'm running OSX 10.8.5.
Thanks

Welcome to Apple Support Communities. We're users here and don't speak for "Apple Inc."
How is your (external, I'm assuming) Time Machine storage connected? USB 2, USB 3, FireWire, Thunderbolt, or Ethernet network? If network, then is the storage drive connected with Ethernet or a USB device connected to the network router? 100Mbit or Gigabit Ethernet? Does your MacBook Pro have a wired or wireless connection to the network?
If it's over a network, to a Time Capsule or another NAS (Network Area Storage) device then yes, it could take a day or longer. If your Time Machine drive is Thunderbolt-attached, then that seems a bit long, but there are a number of variables, including the size(s) of the files and types of files(s), and whether they're compressed or encrypted.
My mid-2007 MacBook (1.5Mbit/sec theoretical maximum SATA speed, 3GB usable RAM, 500GB 7200rpm hard drive) took almost two and a half days to back up 350GB to a network-attached Lenovo/iomega server I use for Time Machine via a wireless connection. I don't recommend wireless, by the way, because when verification fails (quite often in my experience), then TM erases all the old backups and demands to begin anew. It required about 18 hours to back up the MacBook when directly connected by RJ-45 Cat 5e cable over Gigabit Ethernet on both devices.
My mid-2011 iMac backs up 350GB via FireWire 800 to a 1TB Time Machine drive in an estimated 11 hours. (I don't know precisely, I went to bed and it was done in the morning.
Time Machine (and most every OS X update and App installation program, for that matter) seems to be quite incapable of predicting ACCURATELY exactly how long the process will take.
I also use CarbonCopyCloner to create a bootable system backup occasionally, so I'm not stuck for a day and a half of restoring from TM just to get back up and running.
Ancient computing proverb: "You can never be too rich or have too many backups."
Message was edited by: kostby

Time Machine corrupted iPhoto library? Help!

Hi,
I need some advice. It appears that I have lost thousands of photos. I know that's not true cos I have a Time Machine backup, but I want to run my situation past you before trying to recover my library. You see, I had a Time Machine backup error. Actually, scratch that, I had a problem with iPhoto not showing some particular photos. They showed up as just a dotted outline, yet when I chose 'show original file' or clicked to edit the photo, it appeared. So, the photos were there, but the thumbnails had a problem.
After some time spent searching for a fix, I started iPhoto with the command and option keys pressed and chose all options to rebuild iPhoto. This looked like it was gonna take some time (I have over 4500 photos) so I left it alone and went to bed. In the morning, iPhoto appeared to be fixed but Time Machine had reported an error while backing up. I clicked ok, did a new backup by clicking 'backup now' which worked fine and carried on as usual.
I've used iPhoto some more today and then, this evening, another TM backup failed. I tried again, and it failed again. I searched the internet to figure out why and discovered how to view the log file. This reported this: Jun 19 21:22:59 lee-webbs-intel-imac /System/Library/CoreServices/backupd[10907]: Error: (-8062) SrcErr:NO Copying /Users/leewebb/Pictures/iPhoto Library/Library6.iPhoto to /Volumes/Time Machine Backup/Backups.backupdb/Lee Webb’s intel iMac/2010-06-19-210546.inProgress/5A645817-7095-47FC-A658-A447B5A5814C/mac hd/Users/leewebb/Pictures/iPhoto Library
Jun 19 21:23:46 lee-webbs-intel-imac /System/Library/CoreServices/backupd[10907]: Copied 1656 files (294.5 MB) from volume mac hd.
Jun 19 21:23:46 lee-webbs-intel-imac /System/Library/CoreServices/backupd[10907]: Copy stage failed with error:11
Jun 19 21:24:17 lee-webbs-intel-imac /System/Library/CoreServices/backupd[10907]: Backup failed with error: 11
So, something seems to be wrong with the iPhoto library. I reckon that the rebuild process was somehow interrupted/corrupted by a TM backup. Following some instructions I found in C3 here: http://discussions.apple.com/thread.jspa?threadID=2057525 I ran a verify on my TM backup drive. This returned with OK. I then excluded my iPhoto library from my backup and ran the backup again. It worked fine, which would confirm that the iPhoto library is indeed the problem. Good. Ok. So, that's where I am now. Except it isn't. When I now start up iPhoto, my library has shrunk down to 748 photos! Eeek! What's happened, and what can I do about it? In iPhoto, those 748 photos add up to 1.4gb yet the iPhoto library file is still 12.87gb.
Please can you help me.
I just want to make sure I do the right thing instead of panicking. I've switched off my TM backup for now.
Many thanks,
Lee

Hi,
I need some advice. It appears that I have lost thousands of photos. I know that's not true cos I have a Time Machine backup, but I want to run my situation past you before trying to recover my library. You see, I had a Time Machine backup error. Actually, scratch that, I had a problem with iPhoto not showing some particular photos. They showed up as just a dotted outline, yet when I chose 'show original file' or clicked to edit the photo, it appeared. So, the photos were there, but the thumbnails had a problem.
After some time spent searching for a fix, I started iPhoto with the command and option keys pressed and chose all options to rebuild iPhoto. This looked like it was gonna take some time (I have over 4500 photos) so I left it alone and went to bed. In the morning, iPhoto appeared to be fixed but Time Machine had reported an error while backing up. I clicked ok, did a new backup by clicking 'backup now' which worked fine and carried on as usual.
I've used iPhoto some more today and then, this evening, another TM backup failed. I tried again, and it failed again. I searched the internet to figure out why and discovered how to view the log file. This reported this: Jun 19 21:22:59 lee-webbs-intel-imac /System/Library/CoreServices/backupd[10907]: Error: (-8062) SrcErr:NO Copying /Users/leewebb/Pictures/iPhoto Library/Library6.iPhoto to /Volumes/Time Machine Backup/Backups.backupdb/Lee Webb’s intel iMac/2010-06-19-210546.inProgress/5A645817-7095-47FC-A658-A447B5A5814C/mac hd/Users/leewebb/Pictures/iPhoto Library
Jun 19 21:23:46 lee-webbs-intel-imac /System/Library/CoreServices/backupd[10907]: Copied 1656 files (294.5 MB) from volume mac hd.
Jun 19 21:23:46 lee-webbs-intel-imac /System/Library/CoreServices/backupd[10907]: Copy stage failed with error:11
Jun 19 21:24:17 lee-webbs-intel-imac /System/Library/CoreServices/backupd[10907]: Backup failed with error: 11
So, something seems to be wrong with the iPhoto library. I reckon that the rebuild process was somehow interrupted/corrupted by a TM backup. Following some instructions I found in C3 here: http://discussions.apple.com/thread.jspa?threadID=2057525 I ran a verify on my TM backup drive. This returned with OK. I then excluded my iPhoto library from my backup and ran the backup again. It worked fine, which would confirm that the iPhoto library is indeed the problem. Good. Ok. So, that's where I am now. Except it isn't. When I now start up iPhoto, my library has shrunk down to 748 photos! Eeek! What's happened, and what can I do about it? In iPhoto, those 748 photos add up to 1.4gb yet the iPhoto library file is still 12.87gb.
Please can you help me.
I just want to make sure I do the right thing instead of panicking. I've switched off my TM backup for now.
Many thanks,
Lee

Have to reselect Time Capsule in Time Machine after every reboot

Every time I start up my machine I have to open the Time Machine preferences and select my Time Capsule again as the backup drive again or my backups will fail. Does anyone know why I would have to do that or what I can do to fix it?
I'm using a new MBP and a Time Capsule set up as my wifi router and backup drive.
Thanks!
Bruce

I'm haveing the same problem, looking through this forum i found another thread that i think is related.
See. 'http://discussions.apple.com/thread.jspa?threadID=1426843&tstart=0'
Extract to what i believe the solution. Please note that i have not yet had the chance to test this.
"Hi I was having the same problem & just worked it out. Maybe this will work for you - If you open your harddrive window, you should see <name> Time Capsule on the left under Shared. Do you also have Macintosh-######### & If you click on it is it trying to connect or failed connection? This was my clue. It sees Time capsule as a Shared Disk.
Go into System Preferences, then Sharing - If the Computer Name is blank - type in the <name> that was before the word Time Capsule. You may also need to turn file sharing ON if its not. Now go up to the Time Machine logo in the Menu Bar & Start Back Up.
By the way you might try hard wiring the Time Capsule w/ ethernet cables & turning off Airport the first time you back up. I've been on Tech Support with my TC 4+ hours between last night & today & this one I got myself.
Hope that helps. If it works pass it on."

Time machine corrupted sparsebundle? how to repair? time machine restore not working

On my macbook pro, after starting with Cmd-R, I erased the hard disk, re-installed Mavericks and I want to restore my back up with Time Machine. I select the NAS where the backup is, it sees the backup file but it says: "There is a problem with this backup and it can't be restored". I also copied the backup file (with extension sparsebundle) to another external hard disk and tried to use it from there but I have the same problem. With my iMac (as the laptop is not usable since I started it with cmd-R), when I double click on the backup file (ext sparsebundle), it mounts and I can actually see and access the files that are there. I do not understand why the restore is not working with the Time Machine. It seems the sparsebundle is corrupted. I tried these instructions: http://www.garth.org/archives/2011,08,27,169,fix-time-machine-sparsebundle-nas-b ased-backup-errors.html
But I am stuck at this step: tail -f /var/log/fsck_hfs.log
iMac-6:~ root# tail -f /var/log/fsck_hfs.log
/dev/rdisk3s2: ** Checking Journaled HFS Plus volume.
/dev/rdisk3s2: ** Detected a case-sensitive volume.
/dev/rdisk3s2: The volume name is Time Machine Backups
/dev/rdisk3s2: ** Checking extents overflow file.
/dev/rdisk3s2: ** Checking catalog file.
/dev/rdisk3s2: Invalid key length
/dev/rdisk3s2: (4, 57529)
/dev/rdisk3s2: ** The volume Time Machine Backups could not be verified completely.
Nothing seems to happen even after a few hours (like 3 hours). The sparsebundle bakcup file is about 200 GB big. It does not seem to do anything as I do not notice any disk activity.
Could someone please advise how to do the restore with the Time Machine or how I can repair the backup file?

Well, if Time Machine is the only thing on that hard drive and there is only one partition, sooner or later, Time Machine will fill up the entire thing and you can't use it for anything else.
Now, you can start over, but that will mean that your Time machine backups will be wiped out. If that is what you want, it is a rather easy process easily accomplished in Disk Utility:
With hard drive connected, open Disk Utility (Applications -> Utilities). Highlight the Time Machine hard drive (the top entry for it). Click on the Partition tab. In the window, pick 2 partitions under the "volume scheme" and then slide the little thing at the bottom to adjust the size of each partition. Make sure the format is Mac OS Extended (Journaled) and, under options, click the GUID partition scheme. Name each one (i.e. "Time Machine" and "backups") and click "apply". Disk Utility will first erase the drive and then create 2 partitions (2 totally separate drives so to speak). You're done.....
You can then set up the one for Time Machine and the other to drag over whatever files you want.

Time Machine Corrupted (every 3-8 days)

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