New MacPro hard drive missing 70gb?????

Hello:
This is my second mac and first intel mac... I have two hard drives pre-installed by apple, a 320gb and 750gb. I understand that the OS needs room to run on the 320gb drive but why was my second drive down to 680gb when I started it up???
Should I re-format that drive?
I thank you in advance for your advice.

Hard drive manufacturers are using the IEC definition that 1 KB equals 1000 bytes. Computers, however, are binary so 1 KB equals 1024 bytes. For this reason, the computer sees 680GB not 750GB. If the operating system quoted capacity where 1 KB = 1000 bytes, you would see 750GB.

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Time Machine incomplete backup on new External Hard Drive

I have a LaCie 2TB firewire external hard drive I bought 2 years ago. I made 3 partitions, one called "Time Machine" for TM backups of my iMac HD, one called "Video" for video files, and one called "HD2" that I used to install new programs and store edited photos and img files. I ran TM onto this HD for the last 2 yrs with no problems. I recently decided that I needed to have a backup of my iMac HD --- AND the 2 partitions (Video and HD2) on my LaCie. So I bought a Seagate 2TB external USB HD that I planned to use ONLY for Time Machine.
So I hooked it up and formatted it (no partitions), then went to TM options and selected the new Seagate Hard Drive to backup to, and in the options I excluded the Seagate (by default) and the Time Machine partition on my LaCie. Nothing else was excluded. In other words, I wanted to backup my entire iMac HD, and my Lacie Video and HD2 partitions.
My internal iMac HD has 116 GB used, my Lacie Video partition has 355 GB used, and my Lacie HD2 partition has 175 GB used. So I was expecting the Seagate to backup 646 GB.
When my Time Machine backup started at 1 AM, I was happy to see that the status box showed "Backing up 1 GB of 646 GB." When I woke up at 8 AM, I was happy to see that the status box showed
"Backing up 536 GB of 646 GB."
But it stayed stuck on 536 GB until 12 Noon, then started slowly working again. By 7 PM, the status showed "Backing up 623 GB of 646 GB." Then at 8 PM, the status box disappeared and it seemed like everything was backed up. But my Seagate HD shows only 629 GB of used space. So I decided to check the backup in Finder to see what went wrong.
In the Seagate backups folder, I have three folders - one named "Macintosh HD" which shows 112 GB on disk, one named "Video" with 341 GB on disk, and one named "HD2" with 175 GB on disk.
So it appears that my iMac HD was only backed up 112 GB out of 116GB, my Video partition was only backed up 341 GB out of 355 GB, but my HD2 partition backed up the entire 175 GB out of 175 GB.
So my question is - is this normal, or is my backup really missing 4 GB of files from my iMac hard drive and 14 GB of files from my video partition? I started to look at them file by file to see if they matched, but there are so many files, so I thought I would ask in case any of you might have heard of this before. If your answer is that my backups are corrupt or incomplete, should I reformat the Seagate and start over?
Also, is it safe for me to manually delete all the files in my time Machine partition on my LaCie hard drive, since I won't be using that anymore for Time Machine backups? Or is there a process I must follow to delete those older backups?
Thanks for reading this far and for any advice you can shoot my way.

Thank you for your well thought out response. It was really helpful by showing me where to look at things more closely.
Time Machine automatically excludes some things that aren't necessary for a restore, such as system work files, most caches and logs, and trash.
This is good to know. Although I didn't have anything in the trash, I have no idea how much is in the various caches and logs. I'd be surprised if they totaled 4GB, though. I'm still worried about this backup, as explained below after doing a Console log check.
If any files were open, they may not have been backed-up (a partial file wouldn't be of much use). I don't know of any special exclusions for video files or apps, but there may be some. You might want to try the Terminal command in the yellow box of #11.
I didn't have anything else running except TM, so no files were open. I checked the exclusions in the yellow box #11, the Terminal Command, and /System/Library/CoreServices/backupd.bundle/Contents/Resources/StdExclusions.pl ist, but nothing seemed to point to the video files I have saved. So I'm still at a loss with this part of the backup.
You might want to look at the log of that backup
I looked at the log - thank you for the link on how to see it - but the entries show that the size of the backup was even less than I thought - It seems I am actually missing 0.2 GB from the HD2 partition, 6 GB from the iMac HD, and 14.4 GB from the Video partition. And since it shows the exclusion amounts, I'm really at a loss for the iMac HD now. Here's what the Console listed for this backup:
Aug 29 00:55:54 paul-imac-5 /System/Library/CoreServices/backupd[567]: Backup content size: 174.7 GB excluded items size: 0 bytes for volume HD2
Aug 29 00:55:54 paul-imac-5 /System/Library/CoreServices/backupd[567]: Backup content size: 355.7 GB excluded items size: 0 bytes for volume Video
Aug 29 00:55:54 paul-imac-5 /System/Library/CoreServices/backupd[567]: Backup content size: 116.3 GB excluded items size: 30.5 MB for volume Macintosh HD
Aug 29 00:55:54 paul-imac-5 /System/Library/CoreServices/backupd[567]: No pre-backup thinning needed: 776.02 GB requested (including padding), 1.82 TB available
Aug 29 00:55:54 paul-imac-5 /System/Library/CoreServices/backupd[567]: Waiting for index to be ready (909 > 0)
Aug 29 02:37:30 paul-imac-5 /System/Library/CoreServices/backupd[567]: Copied 3275 files (174.5 GB) from volume HD2.
Aug 29 05:49:40 paul-imac-5 /System/Library/CoreServices/backupd[567]: Copied 5412 files (515.9 GB) from volume Video.
Aug 29 19:18:46 paul-imac-5 /System/Library/CoreServices/backupd[567]: Copied 146976 files (626.2 GB) from volume Macintosh HD.
Is it possible to see how many files are in each drive that I was backing up? If I could match the file count, it might give me a better idea. I used Finder, but it only gives me the GB Capacity, Used and Free. For example, if I could see if the LaCie Video partition has exactly 5412 files (or 2137, if the file count above is a running total), I will believe that all the files backed up but may have been truncated. If the partition shows more than 5412 files, then I'll know that not all files were backed up. So at least I can start looking manually.
It will be much faster and easier to erase the partition with Disk Utility.
Thank you for this advice. This should save lots of time. I won't erase my other partitions when I do this, right? Also, will it leave a blank partition there so I regain my space?
I'm really bummed out by this backup. I haven't used my iMac for anything except Safari since this happened, because I do not want to start working again until I know that I have a safe backup, and I don't want to make any new files until I can resolve this. I thought of just reformatting the Seagate and starting over, but I have a feeling it may do the same thing. So at this point, I don't know if the Seagate is faulty, if the TM is not working properly, if I am making a dumb user error, or if this is perfectly normal. The worst thing that could happen is that my iMac HD or Lacie HD fails and I try to restore from my Seagate TM backup, only to find out that my TM backup is incomplete or corrupt.
So I really do appreciate your help and any additional insight you or anyone else might have. Thanks.

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Just use the archive utility on the disk page of the airport utility manual setup..
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New Computer and New External Hard Drive - why do folders and photos not show up?

I replaced my desktop with a new laptop and external hard drive. I transferred photos from the desktop to the external hard drive. Lightroom 2 only shows the mapped hard drive, but does not show any folders or photos. Can Lightroom be set up to house all the photos on an external hard drive rather than using space on the internal laptop hard drive? Do the photos and folders need to be imported again into LR2? The photos are available for viewing when you search folders, but they open up in Photoshop not LR2.
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Lot's of questions here. I'll do a few.
Yes Lightroom can work with images on external drives. As many drives as you want.
I assume from what you said in your original post that you have had lightroom installed on the old desktop and now wish to transfer your catalogue and all files to the external drive and work from that.
So what you would do would be to transfer the entire contents of the lightroom folder on your old computer, except for any images, to the same location on your new laptop. This would include the catalogue files and any folders containing previews. Then you would copy all your image files to the new external hard drive. When you open lightroom you can then select the catalogue you copied from the old computer and open it. In the the folder pane in the library module you can then right click on one of the folders and select "locate missing files". Then you just need to point light room to the new location of your images. You may or may not need to regenerate all your previews.
I store all my images on external hard drives and I even run the catalogue and previews from the same external drives. I have backups of all my images of course. I have light room make backups of the catalogue to the C drive on my laptop so that the original and the backup are stored in different locations.
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To store imports on the new external drive you can you tell light room to copy the files to the new drive or you can manually copy the files to the new location and have light room import From the current location.
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I have been storing my Aperture and IMovie Libraries on an external hard drive that recently died. Fortunately I've been using Time Machine to back up to a 2nd external drive. How do I restore my libraries to a new external hard drive?

This is a tricky one.
Open up Time Machine and go back to a date using the timeline on the right side of the window when you know the drive was working and was backing up as part of Time Machine backups.
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I bought a new external hard drive for backups, but time machine won't do a full back up. I think it is remembering backing up onto previous external hard drives, which I don't own anymore. How do I do a new full backup?

I bought a new external hard drive for backups, but time machine won't do a full back up.
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When I bought the new (used) iMac, I also bought an external hard drive for backups. It worked fine, but my husband stole it.
Then I bought a new external hard drive (Seagate) and it worked fine for three weeks, then died.
So I just got a new external hard drive, which was put together from an internal hard drive and a hard drive enclosure.
Time machine did the first backup today, and it should have taken 9 hours like it did on the previous first time full back up. Instead, it took 30 minutes. That can't be right. I want to start over and do a full backup to make sure everything gets onto my new external hard drive, but I can't figure out how to do that. Please help.

Triple-click anywhere in the line below to select it:
tmutil compare -E
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).
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Each line that begins with an exclamation point (“!”) represents a file that has changed on the source volume. These files have been backed up, but not in their present state.
Each line that begins with a minus sign (“-“) represents a file that has been removed from the source volume.
At the end of the output, you’ll get some lines like the following:
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These lines show the total amount of data added, removed, or changed on the source(s) since the last snapshot.

I move all photos to a new external hard drive. Now all folders have a question mark in them. How do I find ALL PHOTOS at one time instead of having to find each picture. I have about 30,000 photos. Using Mac. LR5

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http://www.computer-darkroom.com/lr2_find_folder/find-folder.htm
See Figure 4

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Regards
Léonie

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Angie in Charlotte

while I can see the .jpeg images that were in my original (ext. hard drive) iPhoto library on the new Passport Drive
When you enter Time Machine and go to the Pictures folder do you not see the iPhoto Library in it at different dates?
Click to view full size
If you used Time Machine to backup your hard drive then the iPhoto Library package should be in it. If you did something different please explain in detail what you did.
OT

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lksj wrote:
How can I move my backed up Itunes library from my external hard drive to my new internal hard drive? I went through the steps listed on the support page, and imported the .xml playlist that I moved to the desktop. Now all my playlists (names only) are on Itunes, but there is no content. Help?
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New MacPro hard drive missing 70gb?????

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