Why is my external hard drive showing up twice on Time Machine?

This is the first time I am using Time Machine because somebody recently gave me an external hard drive.
The external hard drive is appearing twice on Time Machine preferences. One of them is currently backing up and the other one says "Waiting to back up" but I don't want it to back up twice on the same disk.
Here's a screenshot:
Does anyone know why it is doing this?

Triple-click anywhere in the line below to select it:
tmutil destinationinfo
Copy the selected text to the Clipboard (command-C).
Launch the Terminal 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 Terminal in the icon grid.
Paste into the Terminal window (command-V).
Post any lines of output that appear below what you entered — the text, please, not a screenshot.

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I am trying to get space on an external hard drive which has some old time machine back up files that I do not need but can not eliminate, even by going into the time machine, clicking on the backup file to be eliminated and using the drop down eliminate

I am trying to get space on an external hard drive which has some old time machine back up files that I do not need but can not eliminate, even by going into the time machine, clicking on the backup file to be eliminated and using the drop down menu with the gear box symbol to eliminate

I cannot find this 300GB "Backup" in the Finder, only in the Storage info when I check "About This Mac".
You are probably using Time Machine to backup your MacBook Pro, right? Then the additional 300 GB could be local Time Machine snapshots. Time Machine will write the hourly backups to the free space on your hard disk, if the backup drive is temporarily not connected. You do not see these local backups in the Finder, and MacOS will delete them, when you make a regular backup to Time Machine, or when you need the space for other data.
See Pondini's page for more explanation: What are Local Snapshots? http://pondini.org/TM/FAQ.html
I have restarted my computer, but the information remains the same. How do I reclaim the use of the 300GB? Why is it showing up as "Backups" when it used to indicate "Photos"? Are my photos safe on the external drive?
You have tested the library on the external drive, and so your photos are save there.
The local TimeMachine snapshot probably now contains a backup of the moved library. Try, if connecting your Time Machine drive will reduce the size of your local Time Machine snapshots.

I have an external hard drive set up as a Time Machine backup on my IMac. I want to add a second external hard drive and put my Aperture Photo Library on it. Is there a way to have the photos on this second hard drive automatically back up to the Time Mac

I have an IMac with an external hard drive set up as a Time Machine for automatic backups. I want to add a second external hard drive and load my Aperture Photo Library on to it so that the library can be shared by both me and my wife. Is there a way to automatically backup the photo library that will be on the second hard drive to the Time Machine hard drive?

Open System Preference > Time Machine
Click Options....
Ckick on external disk in list and hit the - button below the list to remove from the Exclusion list
Allan

On imac 10.6.8 using current version of Aperture. How can I access the Aperture Library on my external hard drive that I use with time machine for backup? I can only access the application but not the library..

On imac 10.6.8 using current version of Aperture. How can I access the Aperture Library on my external hard drive that I use with time machine for backup? I can only access the application but not the library..

Go into Time Machine (the program not the bundle on the extrnal disk) and using Time Machine's browser go to the Folder where the library lives. You could look in the library bundle in Time Machine but that won't really tell you much,
If you want to make sure it truely has backed up your library you will need to restore it and open the restored library with Aperture.
If all this still has you confused you need to read up on Time Machine in order to get a feel for how it works, for what it is doing and for how to restore files from it.

HT201250 I have two external hard drives. One is my Time Machine backup drive. The other I use for external storage of files (documents, photos, movies, etc). Can I set Time Machine to backup BOTH my Mac hard drive and my other external hard drive?

I have two external hard drives. One is my Time Machine backup drive. The other I use for external storage of files (documents, photos, movies, etc). Can I set Time Machine to backup BOTH my Mac hard drive and my other external hard drive?

Yes you can make multiple backups on one hard drive, for example if you’ve 1TB hard drive installed in your PC and you’ve two Mac Machines with 500GB drive each then you just make two backup images with size of 500GB each.
http://www.halfspot.com/use-your-pc-hard-drive-for-time-machine-backup/

Can I switch external hard drives and still access old Time Machine backups?

I have a Mac Book Pro linked to 2 1TB external hard drives, one used as my Time Machine Back up, the other used as a manual ad hoc back up and to store even older files.
The TM back up drive is now full. If I just unplug it/switch it off and plug in and set up a new 2TB hard drive as my TM back up, will I still be able to access the back ups on the original TM drive if necessary, through TM?
Wil it be a start over situation with the new drive, performing a complete back up to begin with?
Or would you advise me to transfer the old back folder to the new drive, given that it will be larger?

Hi den.thed,
Thank you for this - I think the easy option by far appears to be to leave existing backups on disk 1, and plug in disk 2 and start over.

Can you unplug the external hard drive you are using for time machine

can you unplug the external hard drive you are using for time machine and then plug it back in and it work normals because i have a mac book and don't want to always be carrieing the external hard drive every where i go so can you ?

Yes, that will work fine. It will back up normally once you plug it in again. I do this with my MacBook.

External hard drive not appearing when entering time machine.

Why does my external hard drive back up on time machine ok, but when I enter time machine (and the external device isn't plugged in) i can't see it?
It appears in time machine fine when the external drive is plugged in, but just not if it's been ejected or
I want to have the ext drive backed up in case I lose it or it corrupts....and if that happens I won't be able to plug it in to see the drive in TM - does that make sense?
I am running OSX 10.9.3 on a Mid 2010 Mac Book Pro. The external drive is a samsung and is formatted to Mac OS Extended (journaled). Time Machine is a standard Apple one and has been working fine for a couple of years

Try holding down the Option Key when selecting the Time Machine menu, then select Brows Other Time Machine Disks. See if you can then browse the backup of that drive. The normal Time Machine display is kind of a “live” restore point thing, if that makes sense.
I’m not sure if there is anything in Pondini’s FAQ, but you might peruse it and see if he discusses that issue: http://pondini.org/TM/FAQ.html

Iomega external hard drive either 'not found' by Time Machine or is now in 'read only' format

I don't know what's going on with my iomega external hard drive. Sometimes the HD is recognised by the computer; other times it isn't; if it isn't I can restore to an earlier back up via Time Machine app; but it's like the disk isn't writable.
Ten days ago, I had trouble backing up my iMac using Time Machine. After turning it off and restarting my external hard drive, it backed up successfully.
However, today I am trying to back up my files, and TM tells me it can't find the external hard drive. Nothing has changed -- I have been out of town this past week -- but somehow my HD now seems to be in 'read only' format. It does turn on, and I could restore my computer to an earlier back up.
"Mac OS X can't repair the disk. You can still open or copy files on the disk, but you can't save changes to files on the disk. Back up the disk and reformat it as soon as you can."
Annoyingly, despite my HD not showing in Finder or on my Desktop (as it usually does), when I simply turn it off I get that warning message "The disk was not ejected properly".
Have tried verifying and repairing using Disk Utility, to no avail.
Am prompted to reformat but I don't have a good understanding of what this means and how to do it. I'm guessing this would wipe the disk clean and I'd have to create the initial back up image all over again -- I'm reluctant to do this since this HD is my only back up and if it all goes tits up I'll be up that famous creek without a paddle.
Thoughts, suggestions, input all welcome and deeply appreciated -- thank you!

fzgy wrote:
"Mac OS X can't repair the disk. You can still open or copy files on the disk, but you can't save changes to files on the disk. Back up the disk and reformat it as soon as you can."
It's possible a heavy-duty 3rd-party disk repair app can fix it, but they're expensive (DiskWarrior is about $100), and there's no guarantee it can do it.
Am prompted to reformat but I don't have a good understanding of what this means and how to do it.
That will erase it. See Time Machine - Frequently Asked Question #5.
It sounds very much like the disk is beginning to fail, although it's possible there's a bad port, cable, connection or power supply (if it has its own).
I'd suggest getting a new one, and using it for your Time Machine backups; once you have a good backup there, reformat the old one (and select Security Options to write zeros to the whole drive -- if that fails, you know the drive is toast). Use it for secondary backups, per FAQ #27. If it has failed, get a second new one for secondary backups.

Unlocking external hard drive that was locked with time machine

I use a MBP Retina (Mid 2012) with OSX 10.9.4. I left the MBP at Apple for repair and they changed the mother card and reformatted my HD (SSD). Since I had a backup on a WD My Passport external drive I was not too worried to restore. I had clicked the option "password protected" on TM and therefore the external HD was password protected. I also copied pasted many files on the same external hard drive, in case TM would fail one day to operate I thought that I would still have my files ...
But I was very surprised that when I plugged in my external HD into my MBP it didn't recognize it at all. The external HD did not appear on the screen anymore. Nor in Finder. It appeared in Disk Utility but it could not be mounted. Basically it was impossible to access my data. After a while and talking with Apple Support on the phone we could reach a point where a window appeared asking me the password for the access to the HD. Unfortunately it didn't work. The . password was not recognized. Even though we had selected the right country with the icon upper right on the screen to make sure that we used the correct keyboard.
So finally I reinstalled completely the OSX (coming rom Lion all the way to the last OSX) on the MBP and finally I could restore it with my TM. I spent three days on this since it only worked with one OSX - don't remember honestly which one - and not the last one. Don't know why.
Anyway.
Today I have my MPB working but I miss all the files that are still on my external HD because I cannot access to it anymore. As I said the recovery happened all of a sudden with TM with a former OSX and not the 10.9.4. With this current OSX my HD does not appear on the desktop nor on finder. Nothing. It is locked by TM and I cannot even key in the password to unlock it. Useless to say that I have the password.
Any idea how to sort this out please ? Thanks

This might work. Courtesty of V.K.:
run the following terminal commands (copy and paste, please)
sudo chflags 0 /volumes/*
sudo chmod a+rx /volumes/*
you'll have to enter your admin password (which you won't see). that's normal. this should unlock your drives.

External Hard Drive doesn't work after Time Machine cancelation

First post on the forum.
So far i've had 2 hard drives broken because of a simple Time Machine.
I own a MBP and an HP so my hard drives usually have 2 partitions, one for mac, the other for pc. About a month or so i was doing a Time Machine on my Iomega 1TB (the partition used for the time machine is formatted in Mac Os Expanded (with journaling)), and, because the time machine was extremely slow i stopped it. Then came the problems. I tried to connect the Iomega to the mac, but the partition in which i had the time machine doesn't mount. the other partition is mountable and i even managed to delete some files in it, so it worked. But now the partitions don't mount. I can still see the two partitions in Disk Utility, with the correct names i gave them, but cannot mount.
Right now i don't have the disk with me because i went to a "professional" to try and at least recover my files. What a joke that was. First they told me they had my recovered files and them the files were not mine. The switched the disks and gave me someone elses files. And now they ask me for 1100$ to recover my files because it is a hardware malfunction. Obviously i dont have that amount of money available and i cannot afford the recovery atm, and i do not believe that a software can cause hardware to fail. (just guessing)
Resume: 1 external hard drive, with 2 partitions, one mac os expanded and the other is a Windows NT Filesystem. None of the partitions are corrently mounting on mac but the disk utility recognizes the partitions and the names i gave them.
So guys can u help a poor little girl that needs her photographies so that she can go and show her portfolio to get a job. :/
Kinda desperate at this point.
ps: sorry for bad english, second language

One can't read the other.
Just to be clear Mac's can read/write FAT32 but windows cannot use OS X Extended. So to use a drive on both systems it needs to be formatted FAT32
FAT32 does have limitations and possibly the best solution is to use NTFS, a more modern, robust filesystem. The drawback here is that OS X does not natively read NTFS so a third party kernel extension is needed.

I was trying to back up my mac by using my external hard drive. Without realizing it, time machine erased all my backups from my other computers. Is there any way to recover these files? I can't even get the external hard drive to work on my pc.

I was trying to use my external hard drive to back up my mac computer. It had files on it from my pc computer. Time machine erased all my existing files. (I thought it was only going to erase the duplicate files and rewrite them). Is there anyway to recover these files from my external hard drive. My mac has renamed the hard drive time maching and it will no longer show up on my pc. What can I do?

Yes, the Old Master file has a folder for each year where I find all photos from that specific year. I am attaching a screen shot of the file.
In the meantime i have managed to download all photos (it did not download any video files though in mpg, avi, 3gp, m4v,mp4 and mov format) to a new iphoto library. Unfortunately the photos are quite mixed and often doubled up. I ma considering to purchase iphoto library which checks all duplicates in iphoto. this will save me a lot of time. What do you think?

External Hard drive not backed up on Time Machine

One of my Seagate external hard drives has failed. I thought that the Time Machine was backing up its contents onto my other external hard drive - I set it to back up everything including the external HD. However I've looked into the Time Machine & gone back to before the HD failed, & there is no sign of it. Surely its contents should have been saved on there even if it has now failed? I don't understand the Time Machine anyway; it seems to only show me certain parts of the computer contents; it's really hard to see all of what is on there.
Second question; what is the best brand of external HD to buy? I thought Seagate was reliable but I no longer trust it after this failure. Someone on this forum recommended OWC Mercury ProElite series?

Thanks all,
This is helpful. I am 100% certain I set it to back up everything except the HD it is backing up onto - I remember specifically telling it to back up the other HD - but strangely, when I open the TM window I cannot see anywhere to specify the folders etc to back up; please see screenshot. All it shows is that the TM back-up drive is excluded. I don't understand where all the preferences have gone? I got this window by clicking 'options'; the only other choice was 'select disk'.
Anyway, if as you say they are not included even if you expressly tell it to back them up, maybe including them has no effect. I will try the shift-command-C thing & see if that helps.
Thanks.

Adding external hard drive to airport extreme for time machine error

Hello,
I recently bought an airport extreme that I wanted to combine with an external hard drive in order to do wireless time machine backups. I hooked this up and the hard drive shows up in the devices menu.
However, when time machine starts to backup, I get the following error:
"The backup disk image “/Volumes/Blackmer External MyBook/Benjamin Crispell Blackmer’s MacBook Pro.sparsebundle” could not be created (error 1)."
When my computer is connected directly to the hard drive, it works fine.
Any ideas on how to fix this?
Thank you.

It is important to understand that Apple does not support Time Machine backups to a drive at the USB port of the AirPort Extreme. So, that may be an issue here.
Despite this, users try it anyway. Some appear to be successful for a time, some partially successful, some can't get it to work at all.
Even if it does appear to work initially, corruption issues may occur down the line without warning. Having tried this myself as a test a few times, I can attest to that.
If you want to try this anyway, the two important things to check are.....
The drive must be formatted in Mac OS Extended (Journaled). Other formats will not work
You almost always need to use a powered USB hub...even if the hard drive has its own power supply....because the USB port is under powered on the AirPort Extreme
You might also want to consider a secondary backup plan to protect your important files

How big an external hard drive do I need for Time Machine backups?

I run a 2 Ghz iMac with 1Gb memory, currently using around 108 GB of the 150 GB available memory.
Hpw larghe an external hard drive do I need to run Time Machione efficiently? 500GB? 320? 520?

Not answered - don't know why!

Why is my external hard drive showing up twice on Time Machine?

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