Currently Being ModeratedMay 5, 2012 3:36 PM (in response to RayShell)
If you use Time Machine to back it up, it won't be directly usable until restored, and will be deleted from the backup drive when that drive's out of space. In any case, files you want to keep shouldn't be stored on only one drive.
Currently Being ModeratedMay 5, 2012 3:37 PM (in response to RayShell)
No, if you make a copy on another drive then you can delete the original on the startup disk. But this isn't going to free up a lot of disk space. You really need to install a larger hard drive.
How to replace or upgrade a drive
Step One: Repair the Hard Drive and Permissions
Boot from your OS X Installer disc. After the installer loads select your language and click on the Continue button. When the menu bar appears select Disk Utility from the Installer menu (Utilities menu for Tiger, Leopard or Snow Leopard.) After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the installer.
If DU reports errors it cannot fix, then you will need Disk Warrior and/or Tech Tool Pro to repair the drive. If you don't have either of them or if neither of them can fix the drive, then you will need to reformat the drive and reinstall OS X.
Step Two: Remove the old drive and install the new drive. Place the old drive in an external USB enclosure. You can buy one at OWC who is also a good vendor for drives.
Step Three: Boot from the external drive. Restart the computer and after the chime press and hold down the OPTION key until the boot manager appears. Select the icon for the external drive then click on the downward pointing arrow button.
Step Four: New Hard Drive Preparation
1. Open Disk Utility in your Utilities folder.
2. After DU loads select your new hard drive (this is the entry with the mfgr.'s ID and size) from the left side list. Note the SMART status of the drive in DU's status area. If it does not say "Verified" then the drive is failing or has failed and will need replacing. Otherwise, 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 one. Set the format type to Mac OS Extended (Journaled.) Click on the Options button, set the partition scheme to GUID then click on the OK button. Click on the Partition button and wait until the process has completed.
4. Select the volume you just created (this is the sub-entry under the drive entry) from the left side list. Click on the Erase tab in the DU main window.
5. Set the format type to Mac OS Extended (Journaled.) Click on the Options button, check the button for Zero Data and click on OK to return to the Erase window.
6. Click on the Erase button. The format process can take up to several hours depending upon the drive size.
Step Five: Clone the old drive to the new drive
1. Open Disk Utility from the Utilities folder.
2. Select the destination volume from the left side list.
3. Click on the Restore tab in the DU main window.
4. Check the box labeled Erase destination.
5. Select the destination volume from the left side list and drag it to the Destination entry field.
6. Select the source volume from the left side list and drag it to the Source entry field.
7. Double-check you got it right, then click on the Restore button.
Destination means the new internal drive. Source means the old external drive.
Step Six: Open the Startup Disk preferences and select the new internal volume. Click on the Restart button. You should boot from the new drive. Eject the external drive and disconnect it from the computer.
Currently Being ModeratedMay 5, 2012 3:46 PM (in response to Niel)
Why would it be deleted from my back up drive? Isn't the point of back up to save copies of files? Currently my backed up library does open off my EHD...
Currently Being ModeratedMay 5, 2012 3:48 PM (in response to RayShell)
If it opens from there directly, it's not a Time Machine backup and won't be deleted. The purpose of a Time Machine backup is to recover from accidental data loss and drive failures, not to act as a primary storage location.
Currently Being ModeratedMay 5, 2012 3:49 PM (in response to Kappy)
Thanks...so you are saying that my backed up iphoto library is safe and saved on my EHD and that I can go ahead and delete it off my HD...I know I need a larger HD however was hoping that I could off load files I am no longer accessing much...which equates to 100G...saving for a new mac:)
Currently Being ModeratedMay 5, 2012 3:54 PM (in response to Niel)
Ok thanks...I guess the mac uses the "time machine" ap for my EHD...obviously new at this language and don't want to accidently delete years of pics and videos
Currently Being ModeratedMay 5, 2012 5:56 PM (in response to RayShell)
you can run iPhoto off an external drive -
Moving the iPhoto library is safe and simple - quit iPhoto and drag the iPhoto library intact as a single entity to the external drive - depress the option key and launch iPhoto using the "select library" option to point to the new location on the external drive - fully test it and then trash the old library on the internal drive (test one more time prior to emptying the trash)
And be sure that the External drive is formatted Mac OS extended (journaled) (iPhoto does not work with drives with other formats) and that it is always available prior to launching iPhoto
However doing this has nothing to do with having a backup - if you have one library with no copies then you do not have a backup - and you really need one - alwasy
And backup soon and often - having your iPhoto library on an external drive is not a backup and if you are using Time Machine you need to check and be sure that TM is backing up your external drive