If I choose a hard drive ask my backup disk for time machine, will it clear out the data that was previously stored in my hard drive?

Hello edjhsu,
Unless the drive is in a format that isn't compatible with Time Machine, the files will not be overrwitten. However it is typically a better idea to keep your files and your backup separate, especially since files on the Time Machine drive will not be backed up by Time Machine.
Mac Basics: Time Machine backs up your Mac
http://support.apple.com/kb/HT1427
Cheers,
Allen

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I need to configure a new hard disk as backup disk for time machine. The set up program is running and it says it will take 9 days to backup about 56 GB. Is it normal ?

I need to configure a new hard disk as backup disk for time machine.
The set up program is running since two hours and it says it will take 9 days to backup about 56 GB.
Is it normal ?

Roberto 17 wrote:
I started this morning at 12 and after 5 hours now the backup is about 6 GB up on 56 GB.
The new HD is a WD My Passport Edge 500 GB capacity
5 hours to do 6 GB of transfer is NOT normal, even for USB 2.0 so there's something wrong here. I'd say cancel it, wipe the drive and then test the integrity of the drive. Do some file transfers over to and see if it's behaving normally. It could be a bad USB cable, it could be a bad drive or bad enclosure. As it's new, I suspect you haven't really put it through its paces yet and it's important to do that first before commissioning it to serve as your "reliable backup."

How do I choose a backup disk for Time Machine?

I'm using a 1T Seagate backup disk with 3 partitions to back up on Time Machine. Very suddenly, when it was mounted, the Time Machine icon disappeared, and the Time Machine Partition turned into the generic black Seagate partition-- same as the other two partitions. I ran Disk Utililty; supposedly, everything is fine. I didn't need any of the previous backups, so I reformatted the backup disk. In choosing a disk to use in the Time Machine preferences, I chose a partition. It did perform the backup, and the Time Machine icon was on the desktop while it was backing up, but when I ejected the disk and then plugged it back-- there was the generic icon again.
Also, when I cicked on command e, previously, I was given the option of ejecting one or all three partitions. Now, everything just ejects immediately. Seems like there is a glitch somewhere. In the Time Machine Preferences, the disk with the Time Machine icon at the top of the preferences has an option to select disk and then an option to remove. Why would I remove that disk? Very confusing.

The option to remove the disk in the TM preferences is so you can use another disk if you want.

My iMac suddenly can't read the backup hard drive I've been using for Time Machine. I did NOT just upgrade the OS or anything. The external HD is an OWC Mercury Elite All Pro. It's worked fine since I got the iMac 4 years ago.`

My iMac suddenly can't read the backup hard drive I've been using for Time Machine. I tried unplugging the cord that connects the HD to the iMac and plugging it back in, but I still get "The disk you inserted was not readable by this computer" below which are buttons for Initialize, Ignore and Eject. I was using a cord that went from larger square plug to larger square plug. So then I tried one that went from smaller square plug to what I think is USB (thin rectangular plug) of the sort that connects the keyboard and mouse. It's the type that my printers and scanners use to connect to the iMac. I did NOT just upgrade the OS or anything. The external HD is an OWC Mercury Elite All Pro. It's worked fine since I got the iMac 4 years ago. What else can I try before just trying to initialize and

Thanks, Michael! I do hear it at times spooling up and running. Just after I bumped the thread I looked for troubleshooting for this drive online and found the manual which suggested using Disk Utility which I've seen before accidentally (if I hit Command Shift U instead of Shift U to type "Unit" on a new folder for a student's homework ) but had never really noticed. Disk Utility does see it and also a sub-something (directory?) which might be the Time Machine archives on the disk, called disk1s2), sort of the way that my iMac's hard drive shows up as 640.14 GB Nitachi HDT7... and has a sub-something titled DB iMac, which is what I named my iMac's hard drive.
Anyway the owner's manual just shows the image under the formatting section, not the troubleshooting section, but as soon as I saw it in the manual I remembered seeing it accidentally a few times, went to it, and am now verifying the disk. Right now it's telling me that it will take 2 hours to complete the verification, so I guess I have a bigt of a wait. :-)
Does that fact that Disk Utilities can see it mean it's not failed, or just that it hasn't completely failed?
I can see the virtue in having multiple redundant backups, or at least two backups. What do you suggest? Two external hard drives? I had this one linked by ethernet, and but I also have a cord that could link it by USB (like a printer), so if this one is reparable I could get a second one and link it by USB. If this one is not reparable I could get two and do the same thing. I do have an Airport so I suppose it's possible to get some sort of Wi-Fi hard drive (my new printer/scanner uses only the network and not a cable, although it has a cable that I used for the initial installation), but I'd suspect a Wi-Fi hard drive might have a higher price.
What hard drives, if any, do you recommend? I seem to recall that when I was looking at external hard drives 4 years ago, Apple's were substantially more expensive, which is why I got the OWC Mercury Elite All Pro.

I am changing to a larger hard drive on my Mac. Can I copy the Aperture library from my backup disk running Time Machine without loosing anything?

I am installing a larger harddrive on my Mac. Can I copy the Aperture library from my backup disk running Time Machine without loosing anything? I am getting help migrating everything else on to the new harddrive, but since copying the 350Gb Aperture library takes a lot of time, I am planning to do that part myself.

I found the following information on Time Machine help about restoring Aperture library from TM
Restoring Your Aperture System
If you buy a new computer or use another system at a different location and want access to the Aperture library, you can install Aperture and then transfer the library from your vault (on your backup disk) to the other computer. If you experience equipment failure or other unexpected events, such as fire or weather-related damage to your equipment, you can easily restore the entire library to your new computer from a backup disk.
HideTo restore the entire library from an external backup disk
Restoring Your Aperture System
If you buy a new computer or use another system at a different location and want access to the Aperture library, you can install Aperture and then transfer the library from your vault (on your backup disk) to the other computer. If you experience equipment failure or other unexpected events, such as fire or weather-related damage to your equipment, you can easily restore the entire library to your new computer from a backup disk.
HideTo restore the entire library from an external backup disk
If you buy a new computer or use another system at a different location and want access to the Aperture library, you can install Aperture and then transfer the library from your vault (on your backup disk) to the other computer. If you experience equipment failure or other unexpected events, such as fire or weather-related damage to your equipment, you can easily restore the entire library to your new computer from a backup disk.
HideTo restore the entire library from an external backup disk
Connect the hard disk drive that contains the most up-to-date vault to your computer and open Aperture.
Choose File > Vault > Restore Library.The Restore Library dialog appears.
Choose the vault you want to use to restore your library from the Source Vault pop-up menu.If the vault doesn’t appear in the Source Vault pop-up menu, choose Select Source Vault from the Source Vault pop-up menu, navigate to the vaults location in the Select Source Vault dialog, then click Select.
Click Restore, then click Restore again.

I upgraded to Maverick and now Time Machine will not connect to the external hard drive to back up files. The external hard drive is a Western Digital "My Book Live" 2 TB. How do I solve problem?

I upgraded to Maverick and now Time Machine will not connect to the external hard drive to back up files. The external hard drive is a Western Digital "My Book Live" 2 TB. How do I solve problem?

I also had problem accessing my WD MyBookLive after upgrading to Maverick.
To resolve the problem, I used Connect To Server (Cmd K) to specify the IP address.
Then I enter a user id and password I created in the MyBookLive.
You can also verify that you have admin access to the MyBookLive using Safari or Chrome.
Just enter the MyBookLive IP address as the URL.

My backup hard drive does not have enough space for time machine to perform a back up even after erasing entire contents of bu hard drive

My backup hard drive does not have enough space for time machine to perform a back up even after erasing entire contents of bu hard drive. The hard drive has been in service for almost two years performing this function with no sign of failure. How do I adjust time machine perameters?

The only way to limit the size of the backup is to exclude data from the backup, which you can do in Time Machine preferences.
If you use multiple browsers, have you tried clearing your browser caches? However, that's just a stop gap if it works. You either need to limit what you backup or get another drive.

I have lightroom. My photos are stored on an external disk drive with a backup disk. With iCloud, will all of my photos go to the cloud? Will I still need the external drives? Is the $9.99 per month for just one year or for always?

I am an amateur photographer and have lightroom. My photos are stored on an external disk drive with a backup disk. With iCloud, will all of my photos go to the cloud? Will I still need the external drives? Is the $9.99 per month for just one year or for always?

If the iTunes database files are on that drive, launch iTunes with the Shift key(Windows) or Option key(Mac OS X) held down, select Choose Library, and navigate to it. The computer may need to be authorized to play protected content, and if the library contains rented movies, those won't play.
If not, import the content to an iTunes library.
(100371)

How large should a disk for time machine be vs the hard disk

Can anyone tell me how large a disk for time machine be vs the size of the hard disk?

I usually say 2x or more but your milage may vary on that based on how much your hard drive is actually used, what sort of data (how large the files are) you typically handle and how far back you want your TM backup to go.

HT201250 Can I partition my external hard drive and use one partion for time machine and the other one for data that i may want to use in different computers?

I have this doubt. I've just bought an external drive, especifically a Seagate GoFlex Desk 3 tb.
I want to know if it is recomendable to make a partion exclusively for time machine and let another one so I can put there music, photos, videos, etc that I should need to use or copy to another computer.
May half and half, 1.5 tb for time machine and 1.5 tb for data.
I have an internal hard drive of 500 GB (499.25 GB) in my macbook pro.
Any recommendation?

As I said, yes. Be sure your Time Machine partition has at least 1 TB for backups.
1. Open Disk Utility in your Utilities folder.
2. After DU loads select your hard drive (this is the entry with the mfgr.'s ID and size) from the left side list. 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 two (2). Click on the Options button, set the partition scheme to GUID then click on the OK button. Set the format type to Mac OS Extended (Journaled.) Click on the Partition button and wait until the process has completed.

I recently purchase macbook air with OS 10.10.2. I want to use my Seagate external backup plus hard drive for time machine back up. How to partition my 1TB Seagate back up plus hard drive for use with mac and windows pc?

Hi All,
I recently purchased 13" Macbook Air with OS 10.10.2. I want to use my 1TB Seagate backup plus external hard drive as time machine and my windows 7 pc. Please suggest a method. Thanks in advance for your reply.

I strongly recommend having an external drive dedicated solely for TimeMachine. You could partition the drive but if something goes wrong you risk losing the data on both partitions. Should you decide to go ahead with splitting the drive for two different uses you’ll need to partition the drive either using the Mac’s built in Disk Utility program or Windows utility. I believe the built in Windows disk utility program will destroy the current partition and erase the data that’s on it - I use a third party Windows disk utility program for partitioning and it allows for non-destructive partitioning but warns to back up data first just in case. Apple’s Disk Utility can do non-destructive partitions but I don’t recall every trying to do a non-destructive partition on a disk originally formatted for Windows using it. Again - back up that data just in case.
Finally, your TimeMachine drive should be at least 1.5 times (I prefer 2 times) the size of the data you expect to be backing up a year or two from now. In other words, if you currently are using 50GB of your computer’s drive but expect to begin purchasing Mac software to replace software on your Windows computer and if you expect to be putting photos, music, and other data on it you might expect that two years from now you’ll have 100GB of stuff on the drive. So a 200GB partition is the smallest size you’d want. TM’s backup scheme keeps multiple copies of data as it changes so the extra room is important for this scheme.

My Time Machine will no longer find the drive I used to use to backup

For the past few months I have been using a partitioned LaCie 1tb hard drive as a Time Machine back up for my MacBook Air. The drive is plugged into a MacMini that is at my house and whilst at home my MacBook Air is connected via a wifi network and was backing up fine. After a recent software update on my MacMini I can no longer get Time Machine to work to that drive. I can connect to the drive through finder and even see the 'TimeMachine' file there, but the Time Machine itself will not find the drive so won't back up. Now, trying to set it up again to that drive it won't locate it.
I have been reading forums and have checked the following things:
My Lacie drive is mounted to the MacMini
The file sharing is set to AFP on both the MacBook Air and the MacMini
The Lacie drive is formated to Mac OS Extended (Journaled)
I have done a 'Verify Disk' and it cam eup fine
There is ample space available
There are no other files on that part of the drive
I can access the other partitioned drive just fine (e.g. my iTunes library is based on that drive and music is playing)
I only recently purchased this hard drive so I could get extra storage space and partion it for Time Machine. It all worked fine until recently.
Does anyone have any other ideas on how to get Time Machine to find this drive again?
Thanks in advance!
K

the ipod is likely to be on automatically syncing currently. plug the ipod into a different computer and it will warn you that if you choose to sync with the new computer, the songs will be erased. when this warning pops up, select no. after the ipod appears in itunes and has not updated, go to the ipod options and you can select manually organize songs.
Go here for more information:
How to use your iPod to move your music to a new computer
Windows XP Pro Intel Core 2, 4GB RAM, SLi Configuration, 1.5TB

External hard disk for Time Machine

I'm considering baking up my iMac. I have a Lacie external hard disk with a Master Boot Record partition type. On it, there are already some data files from both Windows and Mac machines.
I understand that, for Time Machine to work, the partition type needs to be changed to GUID (for Intel based Mac). Obviously, I will need to copy these data files to somewhere, then use Disk Utility to change the partition type, partition the hard disk (one partition to be used for Time Machine back-up).
My question is, will it be safe to copy the data files (previously from Windows and Mac machines) back to another partition of the hard disk which will then has a GUID partition type? Will the files (including those from Windows machines) be usable?

KenWong wrote:
I'm considering baking up my iMac. I have a Lacie external hard disk with a Master Boot Record partition type. On it, there are already some data files from both Windows and Mac machines.
I understand that, for Time Machine to work, the partition type needs to be changed to GUID (for Intel based Mac). Obviously, I will need to copy these data files to somewhere, then use Disk Utility to change the partition type, partition the hard disk (one partition to be used for Time Machine back-up).
My question is, will it be safe to copy the data files (previously from Windows and Mac machines) back to another partition of the hard disk which will then has a GUID partition type? Will the files (including those from Windows machines) be usable?
You're slightly mixing terminology.
The *+Partition Map Scheme+* applies to the whole disk, whether it has one or multiple partitions. That's what needs to be GUID or +Apple Partition Map+.
The Format applies to each partition, and may be different for each one. Your TM partition needs to be +Mac OS Extended (Journaled),+ the other one can be +MS-DOS (FAT)+ for use with Windoze.
You can copy those files anywhere temporarily, while re-formattng the disk. It doesn't have to be a separate partition. It could even be CDs/DVDs. As long as you can copy and read back, it doesn't matter. If you put them on your boot drive, Windoze won't be able to read them while they're there, but once you get them back on a +MS-DOS (FAT)+ partition, it will.
See the instructions in item #5 of the Frequently Asked Questions *User Tip* at the top of this forum.
We usually recommend putting the Time Machine partition first (at the top of the diagram that Disk Utility will show you), so you can more easily expand or contract it later on, if you need to.

I just purchased Time Capsule today. I ONLY want to use it as an external drive. I do not need it for Time Machine. I can see the TC in my finder, but when I click on a file or video to drag and drop, I get message that TC can't be modified. Help please

I just purchased Time Capsule today. I ONLY want to use it as an external drive. I do not need it for Time Machine. I need to free up room on my computer. As of now, I can't even load updates. I can see the TC in my finder, but when I click on a file or video to drag and drop, I get message that TC can't be modified. Help please!

I agree with Kappy.. passing files and especially via wireless is slow as slow.
Just need to be sure your TC is the new AC model??
And the OS on the computer is Lion?
Have you completed the setup of the TC via the utility? You do still need to get internet via the TC so it has to be plugged into the main router..
Give us the full picture of the network.
Then we can help you get into it.. whether you should put your files on it is another question.

Cannot install Mountain Lion as the installer provides message that my target drive is using Time Machine. My target drive is my internal drive and I use an external drive for Time Machine. When I check the Time Macine set up under system prefereces it sh

Cannot install Mountain Lion as installer sys the target drive I have selected is using Time Machine. The target drive I selected is my internal drive. I have an external drive that I use for Time Machine backup. When I go to System Preferences and look at the Time Machine set up it shows my target disk is the external drive. What to do?

Yes, you’ll be able to do that.
(116841)

If I choose a hard drive ask my backup disk for time machine, will it clear out the data that was previously stored in my hard drive?

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