HT201250 Do I need to partition my external hard drive if I'm using Time Machine and other storage?

I never used Time Machine before. I was storing select files on my external hard drive as well as using my libraries (IPhoto, ITune, IMovies) directly off of the external hard drive. That hard drive is giving me problems, so I bought a new one. I want to set up Time Machine on this one, but I also want to keep my active libraries on it. Do I need to partition the external hard drive?

You can partition the new drive, just don't make one of the partitons a TimeMachine drive, save a TM for a entire drive with more space than the boot drive as it saves "states" thus requires more room than most people expect.
I highly advise one drive to one drive for backups, and not placing too many backup eggs in one vulnerable hardware basket basically.
Drives are cheap, data is not. Hardware can fail just as often as software, so you need a multiple backup and storage stragedy to protect even against theft and fire.
Most commonly used backup methods

Similar Messages

HT201250 Do I have to have an external hard drive to back up to Time Machine?

I have never set up Time Machine on my iMac and I'm having a little trouble. It's not giving me the option to use Time Machine as the backup. Does it require an external hard drive?

Does it require an external hard drive?
Short answer: Yes (or a time capsule).
Long answer: Mac 101: Time Machine - Support - Apple
charlie

Many external hard drives - stop asking to use Time Machine!

I do a lot of video editing on my machine, and have a lot of clients' external drives plugging into my machine. Usually, we are doing this under a tight deadline, where every extra little mouse click counts -- and with each new drive, Time Machine always asks me if I want to use it for backup. Is there any pref to turn this off!?
Time Machine is turned off, but it still does this. I have my own backup system.

My impression is that deleting the pref will just clear TM's memory of certain hard drives. The user in that thread keeps getting the question for the same hard drive. Clearing the prefs would solve his problem by resetting that memory. In my case, it's a whole bunch of 'new to this computer' HDs. Again, that's just my impression.
No harm in trying to delete, though - will try tomorrow.

My system information shows 232gb used as a "back up"on my internal hard drive even though I use time machines and a external hard drive.

Hi
I have had my mac book pro for almost 6 months. Whilst using a 500 gb portable hard drive with time machine, I was surprised to get a message saying there wasn't enough disk space to complete a back up.
I brought another but started to look into why I had used so much space. In system information I had this view. Can anyone help me find where to clear this back up which is taking up so much of my hard drive.
Thank you
Dan

Local Snapshots - About
Local Snapshots on Portable Macs

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.

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/

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

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.

Do I need to partition my external hard drive for a bootable backup

Hi - First, I apologize for asking a question that's already been discussed so much. I did try to read everything I could, but I remain confused. Here is my precise situation:
I have an iMac, and I purchased a year's worth of Carbonite's online backup and breathed a sigh of relief. Then I read some people have problems with Carbonite, and the best advice was to buy an external hard drive, which I did. It just arrived, I plugged it in, and Time Machine backed up my computer on it...so I breathed another sigh of relief.
Then I read that my wonderful new 2T external hard drive isn't good enough, that I should partition it so as to have one backup, and one "bootable backup." Is this really necessary? And what is the difference between a backup, and a bootable backup? If it is necessary, how do I do it? Is it a problem that I've already used it to create a backup on Time Machine?
I use my computer for things like email, Facebook, pictures, eBay, stuff like that. I have no unusual needs. My computer is an iMac OS X 10.6.8.
Thank you in advance for any help you can offer!

I prefer a clone/bootable backup ovver Time Machine myself.
For TM you need a running OS, then time to restore, with a clone you can boot from that & keep working while doing the other when time is better. And you can test a clone before you need it.
Get carbon copy cloner to make an exact copy of your old HD to the New one...
http://www.bombich.com/software/ccc.html
Or SuperDuper...
http://www.shirt-pocket.com/SuperDuper/
You would need to Partition your drive though.
How to format your disks...
http://www.kenstone.net/fcp_homepage/partitioning_tiger.html
(To Install OSX on an IntelMac the Drive it needs the GUID Partitioning scheme mentioned at the bottom.)
Thanks to Pondini, Formatting, Partitioning, Verifying, and Repairing Disks...
http://Pondini.org/OSX/DU.html

My external hard drive is not recognized by Time Machine; "The backup disk is not available" according to Disk Utility

I'm not completely tech savvy, but I'm having troubles with my external memory & time machine. I'm a student, and thus its very important to me to be able to back up my computer.
I wanted to back up my Time Machine the other day. I clicked the icon at the top of the page (beside the battery icon, etc.) and the message "The backup disk is not available". I have a 500GB Seagate passport (ie: http://www.bestbuy.com/site/Seagate---FreeAgent-GoFlex-500GB-External-USB-2.0-Po rtable-Hard-Drive---Silver/9929098.p?id=1218196478444&skuId=9929098)
My macbook pro is version 10.7.5 Mac OS X Lion. My external memory is only about a year old. It hasn't been dropped or anything; it permanently sits secured to my desk.
What appears when I click "Repair Disk":
Verify and Repair volume “Time Machine Backups”
Checking file systemChecking Journaled HFS Plus volume.
Detected a case-sensitive volume.
Checking extents overflow file.
Checking catalog file.
Incorrect block count for file shutdown_time
(It should be 1 instead of 0)
Invalid node structure
Rebuilding catalog B-tree.
The volume Time Machine Backups could not be repaired.
Volume repair complete.Updating boot support partitions for the volume as required.Error: Disk Utility can’t repair this disk. Back up as many of your files as possible, reformat the disk, and restore your backed-up files.
After clicking "Repair Disk" this message pops up: "Disk Utility Stopped Repairing 'Time Machine Backups' Disk utility can't repair this disk. Back up as many as your files as possible, reformat the disk, and restore your backed-up files."
I don't want to wipe my memory on my external disk just in case the disk doesn't restore (as I do not have another disk to back up my computer on to).
What is going on? Why is this happening out of the blue? How can I fix this?

Sounds like it either has, or is about to die.
If you don't need anything off the old drive, then yes, replace it immediately with something a little more reolaable. I use WD Caviar Black personally. But anything that has a known low failure rate.

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 am looking to buy an external hard drive for my maced to time machine.

I am looking an external hard drive for my mac and I do see one in PC world that is compatible with time machine. I do not want it connected to time machine and wonder if I can use it without connecting.

In my view you need to have one external drive connected to Time Machine all the time in order to receive the true benefits it can give. Do not use your internal HD for this purpose.
Having said that, to double up on back ups is a very practical thing to do. I would advise you get a portable HD, say 1TB, from WD or the like, back up your system, disconnect, then top up by connecting it every couple of months or so.
You can then store the portable away from the machine, perhaps with a trusted relative, so adding safe keeping against fire, theft or power disasters
Message was edited by: seventy one

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

External Hard Drives- Shared Vs. Mounted Device & Time Machine

If you connect an external via firewire 800 it's fast for streaming itunes music, iphoto and high def movies- AND it's contacts will back up to your time capsule. If you also connect it via USB to the time capsule you can even access it via back to my mac from anywhere.
If you connect a hard drive to the gigabit ethernet port on your mac or on your time capsule does it show up as a shared drive though? Shared drives do NOT back up to the time capsule. When I bought a second time capsule to use as a second hard drive I learned that- there was no way to get it to back up to the time capsule.
I want to get the Lacie 1tb Hard Disk. It has USB, FW400 and eSata connections. My fear is that FW400 isn't fast enough for streaming HD movies- my MBP doesn't have eSata but I could buy the spyderhub and convert it to FW 800.
Another option is to get the 1tb network version that has Gigabit Ethernet- but would that show up as a shared drive or a connected device? Thanks for your help.

Thanks for the reply.
It seems as though that one would work but I would definitely buy the eSata adaptor ($129).
Would the ethernet version show up under "device" rather than "shared"? It would save me about $100, still be a fast connection, but I need to be sure it will be backed up by the time machine as a "device" and not ignored as "shared".
When I use these categories of course I am referring to the left column in a Finder window.

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.

HT201250 Do I need to partition my external hard drive if I'm using Time Machine and other storage?

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