Time Machine backing up external hard drives?

I have a Macbook Pro connected to two external drives. One is a simple 2 TB drive and the other a 6TB RAID1 drive. Before I switched from OSX 10.6.8 to Mountain Lion, Time Machine appeared to back up both the MacBook Pro and the external 2TB drive to the RAID1 drive. After switching to Mountain Lion, Time Machine seems only to back up the Macbook Pro but not the 2TB external drive to the RAID1.
I have read conflicting information on various discussion groups about whether Time Machine indeed backs up external drives or not.
If Time Machine does NOT back up external drives, i'd be grateful for advice on how to otherwise back up this drive.
thanks very much.

By default, it will exclude all externals.
To have one backed-up, you must remove it from the exclusion list
System Preferences > Time Machne > Options > remove the drive you want backed up from the list

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Can Time Machine back up external hard drives?

I have an older Mac Mini with a fairly small hard drive -- I think it's 80G. Most of my data needs to live on a separate 250G external hard drive . I would like to use my brand new 1TB hard drive to back up both the 80G Mini HD and the 250G external hard drive.
Is this possible?

Thanks. I had my suspicions about that, but I'm glad to hear it's an easy fix.
And special thanks for the quick answer. It came so fast, I think I felt wind blowing over my keyboard.
Jack

HT201250 Can time machine back up external hard drives too?

I'm new to Time Machine. Can I set it up to back up both my internal HD and an external HD?
Thanks,
Carol

Yes but it's poor advice by Apple for the reason hardware fails just as often as software, if you drop that drive, you have ruined all your backups at the same time.
If you get malware, you have just infected all your backups at the same time.
Apple created TimeMachine and didnt provide a Windows version, in my opinion it's to trap as much as your data as possible so you can't decide to later to switch to a Windows PC without a great deal of pain and effort.
So the more drives you backup with Apple's TimeMachine the more data is trapped in it when the hardware or software fails.
The best advice is to have a multiple backup system and match each piece of hardware with two of it's own seperate hardware backups.
So if you have a boot drive, you need two external backups of it.
If you have a storage drive for extra space, then you need two more drives as backup of that.
Drives are cheap, data is not.
If you drop the only backup, get a power surge, or a criminal breaks in or a fire and it's dead or gone, or get malware, you won't know until it's already infected the first backup restored that it's still on the loose and need ot take stronger measures, your going to wish you had the second backup safe and sound someplace.
Most commonly used backup methods

HT1553 DO I HAVE TO HAVE THE ORIGINAL INSTALLATION DISCS IF MY HARD DRIVE IS REPLACED BUT I MADE A BACK UP WITH TIME MACHINE TO AN EXTERNAL HARD DRIVE ?

I have an imac from late 2009 and received an email saying the seagate hard drive may fail and apple is going to replace it free of charge. I will back up using time machine to an external hard drive but do I absolutely have to have the original installation CD's or is there a way around this to restore the computer once they replace the hard drive??

Yes, you can partition your 2TB drive that way. In fact, I have an external hard drive with 3 partitions: one for a SuperDuper! clone of my Snow Leopard partition, one to clone my Lion partition, and one larger partition for Time Machine (which only backs up the Lion partition).
I would expect the authorized reseller to have a complete set of OS X disks.

Does the new airport extreme support backing up via time machine to an external hard drive pluged into the usb port

Does the new airport extreme support backing up via time machine to an external hard drive pluged into the usb port

Yes, but you might want to note that the port on the AirPort Extreme is only USB 2.0, and that it runs at about half the speed of the USB 2.0 port on a computer, so things are going to be quite SLOW as far as backups are concerned, or anything else for that matter.

Can I increase the capacity of Time Machine with an external hard drive connected to Time Capsule?

Can I increase the capacity of Time Machine with an external hard drive connected to Time Capsule via the USB port? My current Time Machine has a total capacity of 1TB. I'd like to double or triple its memory. I don't want to use the external hard drive in lieu of the Time Capsule hard drive. I'd like to use it in addition to. Just don't know if/how it's possible.
This is another one of those questions that I've searched the web for answers, and have gotten tricky answers back. So now I'm trying to introduce a clean slate to the mix.
Thank you for your time!

Well, what you mentioning is possible. However, I don't know whether it's supported (as in, "easy to set up."). Time Machine officially supports backing up to a locally attached drive, to a machine running a Time Machine server (i.e. running OS X Server software), and to a Time Capsule. I don't know that it officially supports a drive attached to an AirPort or to a Time Capsule. Though I know some people have gotten it to work.
Best I can say is to try it. Plug the drive into the Time Capsule, ensure it's shared on the network, and then try and set it as a backup target from a machine in the Time Machine backup panel (you'll need to ensure it's mounted first). If it works, you're all set.

Time Machine on an External Hard Drive - used with another computer or mac?

I'm planning on selling my computer but want everything that is on my Mac saved so when I can afford to buy a new computer I will have all of my files, music, pictures, etc. I hooked up Time Machine to an external hard drive last night. So everything should be saved to the external hard drive now right?...will I be able to open any of those files on another computer using my external hard drive that has my backup on it? For example, if I have my resume as one of the files can I plug in my hard drive that has my Time Machine back up on it to open edit and resave the file? Or am I better of manually saving the files to the external hard drive without using Time Machine?
Please help...I need to sell my computer but don't want to lose any of my stuff on it...
Thanks!

Time machine works great for the file you accidentally delete or modify even if you need to go back months and months. There are better solutions when you really just need to clone your existing system like CCC or Superduper. A clone is more flexible when it comes to getting your stuff. The only downside is you will lose the multiple copies time machine keeps. The upside is you know exactly what's on it and you can boot from it if needed. The file structure is definately more stable on a clone.
A time machine is OK for what you're doing. I just think a clone is better. The choice is yours.

Time machine not seeing external hard drive in time line

can anyone help
time machine not seeing external hard drive in time line
before 2013
information say in 2009 is not accessable to view this
i must select external drive from finder
the time machine icon not recognising

thanks for reply
when i open time machine the time line on right side of page
has date ranging from 2014 back to 2010 but only highlight date from 2014 back to 2013
anything before 2013 is greyed out and cannot not be selected
when i touch the pages they only rush towards me a limited amount then stops
also why it shows date as 2014 is strange

HT3275 Time Machine says my external hard drive does not have enough

Time Machine says my external hard drive does not have enough space for the current backup. It needs 34 G out of a 250G hard drive. All that is on the drive is earlier backups. I recently added memory, which may confuse Time Machine into thinking it is a new computer. How can I erase old backups and complete this one?

Walter Goodman wrote:
Time Machine says my external hard drive does not have enough space for the current backup. It needs 34 G out of a 250G hard drive. All that is on the drive is earlier backups.
See #C4 in Time Machine - Troubleshooting.
If that doesn't clear it up, how much data is on your Mac? If TM is only trying to back-up 34 GB, it should be able to delete old backups to do that (assuming you're running Lion).
It sounds like your backups may be corrupted. Try to repair them, per #A5 in Time Machine - Troubleshooting.
I recently added memory, which may confuse Time Machine into thinking it is a new computer.
If that's all you did, no.
How can I erase old backups and complete this one?
Just erase the drive per #1 or #2 of Using Disk Utility.

HT201250 i am using for first time the time machine and an external hard drive because I want to erase my macbook and start from zero files. do i keep my files in the portable hard disk when I connect it again with the macbook or the time machine will era

i am using for first time the time machine and an external hard drive because I want to erase my macbook and start from zero files. Am i keeping my files in the portable hard disk when I will connect it again with the macbook or the time machine will erase all?
I would like to know if after I erase all my data, empy hard drive inside the macbook, the time machine will erase all my files that I have saved in my "WD "My passport" external hard drive

Welcome to Apple Support Communities
Time Machine has to erase the external disk in order to make backups. Before setting Time Machine up, copy the files of your external disk to the hard disk of the Mac in order not to lose them, and then, set up Time Machine. The first backup will start automatically.
If you want more information about Time Machine, read the Pondini's site > http://pondini.org

How do I move data on time machine from one external hard drive to another

How do I move data on time machine from one external hard drive to another?

Although the documentation says you can copy Time Machine backups in the Finder, it's very slow and sometimes doesn't work at all.
Launch Disk Utility, open the built-in help, and search for the term "Duplicate." Follow the instructions. Turn Time Machine OFF in its preference pane while copying the volume.

How do I use my Time Machine as an external hard drive to just dump files no longer needed on my computer?

How Do I use my time machine as an external hard drive?

Time Machine is software that allows a Mac to backup to a Time Capsule or other hard drive, so I think you are asking about the Time Capsule here, correct?
http://www.apple.com/timecapsule/
How do you plan to connect the Time Capsule to your network, or is it already connected and configured?
When you have it configured on the network, you can use the Finder to copy/paste or drag/drop files from your Mac to the Time Capsule disk.

Does Time Machine backup other external hard drives?

I am using a Seagate 500 GB to backup my data. Will Time Machine backup another external hard drive on which I store my iMovie projects? If so, how do I access them in the Time Machine mode? Thanks in advance.

nachdenki wrote:
strange, my external HDs were added to the exception list automatically. maybe because they wouldn't fit on the time machine volume.
It seems to depend on when the drives were connected. When you first turn Time Machine on, it only excludes the TM drive itself, and any drives not formatted HFS+.
If you connect a drive later on, that drive will be excluded automatically.

Using Time Machine to restore external hard drive data

I have been using a Mac Mini running 10.6.8 for years as a media server. I have always been very careful to maintain backups of everything, and the inevitable did happen - the hard drive containing all my media did fail.
To clarify my set up, my Mac Mini internal hard drive is insufficient to store all my media, so I have been using an external 2TB drive to store it. I then set up Time Machine to back up both the Mac Mini and the 2TB external drive to a second 3TB external drive. Now that the 2TB drive with my media has failed, I seem to be having problems restoring all the media from 3TB drive. This is because the Time Capsule interface is designed to display finder windows at various points in time so you can go back to when your missing files existed and restore them. The problem is that I need the entire contents of the dead 2TB drive restored to a new drive, but I can't open a Time Capsule window that shows the contents of the old drive. I have tried opening /Volumes in a finder window, then invoking Time Machine, but my dead hard drive does not show up in the list of volumes. When I open the 3TB drive in a Finder window I can clearly see that it has backups of the 2TB drive, but they are spread out among 83 different snapshots of various dates.
How can I use Time Machine to easily restore the entire contents of the dead 2TB external drive to a new external drive?

This web site might answer all of your Time machine questions:
http://pondini.org/OSX/Home.html
Ciao.

Time Machine Backup of external hard drive connected to IMAC

I have an external hard drive connected to my IMAC. I also have a 2TB Time Capsule connected to my network. I store all of my video (both events and projects from imovie) to the external hard drive to save space on the IMAC. Does the Time Capsule backup this external hard drive? When I open Time Machine I don't see where the external hard drive is backed up? The drive is formatted MAC OS extended (journaled).

nujac,
Time Machine backs up all locally attached drives unless you specifically exclude them in System Prefenences > Time Machine > Options.. icon.
You should be able to see this in Finder, enter TM and highlight the external drive. Click back to a prior date. Sometimes it takes a little while to fully populate the display since it's reading across the network, give it a few minutes.
Regards,
Captfred

Time Machine backing up external hard drives?

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