Can I create a raid drive with disk utility

I recently bought a 2TB seat gate external drive.
I want to use this drive with time machieve as well as set it up as a raid drive to strode photos.
Is this possible to do with disk utility?

Hello
you can not make any kind on RAID type with only one hard drive you need at least tow drive to perform a RAID volume
then , hard drive utility can be use to perform software raid  ( Level 0 an Level 1 only )
for more info about RAID technologie  http://en.wikipedia.org/wiki/RAID
Pierre

Similar Messages

  • How can I erase My hard drive. Disk utility only gives me the option of erase free space. I have 27in iMac with Lion and 12 gb ram.

    How can I erase my hard drive? Disk utility only gives me the option to erase free space.
    Thanks for any assistance.

    Drive Preparation for Lion
    1. Restart the computer and after the chime press and hold down the COMMAND and R keys until the menu screen appears. Alternatively, restart the computer and after the chime press and hold down the OPTION key until the boot manager screen appears. Select the Recovery HD and click on the downward pointing arrow button. Select Disk Utility from the main menu and click on the Continue button.
    2. After DU loads select your 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.  SMART info will not be reported  on external drives. 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. 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.
    4. Quit DU to return to the main menu.
    5. Select Reinstall Lion then click on the Continue button. You need an active network connection in order to download the Lion software.

  • I got 3.95GB available on my flash drive and need 4GB to reinstall lion osx how can i create space on usb using Disk Utility ??!

    I got 3.95GB available on my flash drive and need 4GB to reinstall lion osx how can i create space on usb using Disk Utility ??!

    What is the capacity of the flash drive?
    You might also be able to reinstall Lion without a flash drive, by booting up the computer holding the Command + R keys, and choosing Reinstall OS X.

  • How do you setup RAID 10 with Disk Utility?

    I read a post that indicated a Mac Pro user created two mirrors and then striped them with Disk Utility to create a RAID 10.
    I tried this but Disk Utiity will not allow me to stripe the two mirrors. I tried dragging and using the "+" button. In each case no RAID 10 could be created.
    Could someone list the exact procedure for creating a RAID 10 using Disk Utility?
    Thank you

    I have Mac OS X Build 8K1124 and I believe that came with my Mac Pro as I've not required a Mac OS X update via Software Update.
    Now, I have to honest, I'm not entirely sure that was the exact process. As you can appreciate I don't have another 4 drives to try this again so I'll do my best here.
    It's definitely right up until the part of making the mirrors and unmounting them, that I know for sure. What I don't remeber is what I had selected to get to the RAID tab to create the Stripe Set. I believe I had one of the mirror partitions selected, that is, either "disk5" or "disk6", which brought up the RAID tab that then allowed me to create the stripe set.
    I then created the set and then dragged the mirrors (I believe disk5 and disk6) into the set.
    If you can't do this can you let me know how your situation deviates?

  • Problem partitioning external hard drive with Disk Utility

    I'm trying to create a new partition in disk utility in an external hard drive using disk utility and every time I click Apply it says that "Disk Utility has lost its connection with the Disk Management Tool and can't continue. Quit and relaunch Disk Utility". It is a 3TB hard disk and I already created the first partition of 2 TB, and when I click the + symbol to add a 1 TB partition and click Apply is when the error shows up. I have restart the mac, unplugged the hard disk but the error still shows up. Anyone has any idea??? Thanks for your help in advance
    David

    I solved this issue. I was able to create the partition with the format MS-DOS and then I erased it to the Mac OS Extended (Journaled) format.
    Now it is working OK. Hope this help someone

  • Problem Erasing external drive with Disk Utility

    I've just purchased some Western Digital My Book Pro 1Tb firewire drives. They come pre-formatted for Windows. When I try to initialize them, Disk Utility returns a failed message & the drive then disappears from the desktop. It is still visible in Disk Utility. I can reformat as a FAT partition but not as a Mac partition. I tried connecting the drive to machine running Tiger and was able to format as a Mac partition. Is there a problem with Disk Utility in Leopard?

    I have seen some behavior like this a few times before. When this happens I go to my Linux box and dd a bunch of zeros to the beginning of the drive, this will blow away any partition tables and such.
    dd if=/dev/zero of=/dev/sdb bs=512 count=100k
    This writes 50MB of zeros to the raw device "sdb" (this may be different depending on your system)
    I've tried to dd from MacOSX, but for whatever reason it's painfully slow.

  • Unable to verify or repair my external hard drive with disk utility, reason being ...

    Hello there,
    I have been facing this problem: After I started getting an error 50 error while trying to view in Quicktime player a movie which I had exported from FCPX today, I found that I was not even able to trash the movie [this was a test movie used for export and I had no need for the same].  A little while later when I opened FCPX, I found this message pop up:
    Got a little worried and then tried to verify and repair my hard drives using disk utility, but I could neither verify nor repair the disk.  What should I do now?

    Hello Klaus,
    I think I have been able to overcome the problem/s.
    I have been using my Seagate 2 TB drive [2 USB] with a FW adapter and was using FW connectivity for the past several months without any problems. About 2 months ago I added a 2 TB Lacie, FW, to my workflow and this EHD was daisychained to the Seagate. Had been facing no problem with this arrangement until today.
    Now let me try to tell you what I had done:
    I ejected the Seagate drive with the intention of reconnecting it again. But, no, when I tried to reconnect, this message came up:
    After several attempts, I did this, connected the Lacie by FW to the FW port on the Mac and connected the Seagate by 2 USB. Was I glad to see my Seagate HD icons shining in all their glory on my desktop! I utilised the services of disk utility and was informed that these prodigal sons were absolutely fine.
    I also tried to do this: empty the trash. Was I happy to hear the sound of files being cast out?
    Well, well, at least I will be able to get some peaceful sleep now! I have not yet opened FCPX, but I trust it will also be reading the Seagate HD once again.
    Good night and thanks for being helpful.

  • Format External Drive with Disk Utility, Make it Windows Compatible

    I have formatted my external drive using disk utility, and it works great on my Mac. But no Windows PC can read it, and I need to use it on Windows PCs. I tried formatting as MS-DOS FAT but that didn't work either. What can I do?
    Thanks so much in advance.

    I've run into the problem fairly regularly were I format a drive as FAT32 on the Mac, but Windows won't read it. I just reformat it from the Windows machine as FAT32. My Mac always reads and writes to it just fine, so it has never been a problem, just a minor mystery.
    Francine
    Francine
    Schwieder

  • Copying a drive with Disk Utility

    I have a USB drive used for Time Machine that is failing. Disk Utility says it can't fix it, but says I can copy files from it.
    I attached a new drive and am using Disk Utility's "Restore" function to clone the new drive from the failing one (both are 1TB drives).
    Disk Utility says on the screen that it is "copying blocks". Does this mean it's doing an image copy rather than a file-by-file copy? It seems to me an image copy in this case might be bad, because it could cause any file or directory corruption on the old drive to be copied to the new drive.
    Are my worries justified? Would I be better off just using the Finder to copy files? Are there third-party programs that might be better? (DiskWarrior says it can't fix the old drive because of insufficient memory.)

    I have SuperDuper! but didn't have it installed on that machine and thought I would give the Disk Utility process a try.
    I'm fairly sure SuperDuper! must use file copying, not image copying, and I suspect Disk Utility does too. But that "copying blocks" message made me wonder.
    BTW, Disk Utility is telling me it's going to take over 24 hours to copy the terabyte. Both drives are connected via USB 2.0.

  • I create a new partition in an external hard drive with disk utility. Now it says mounting disk and it's taking forever. Is that normal? Please help!

    I have an external hard drive from seagate. Tonight I decided to give it a try and add a new partition to it so I could have a bootable version of mountain lion in it it just in case of emergency and no internet. After creating the partition, disk utility says "mountain disk", and its been doing it for at least 20 minutes and not moving... Any ideas? btw, now the external drive is not even showing on the left-side bar...
    Thanks!

    I would try reformatting the drive and creating the partition again. Make certain that you erase the drive and format it as "Mac OS Extended (Journaled)" and the partition the drive.
    What you describe is not normal... try again.
    Clinton

  • Unable to erase external hard drive with Disk Utility

    Macbook Pro (mid 2010) running 10.9
    Hello
    Recently, my Seagate FreeAgent GoFlex 1 TB external hard drive has not been showing up on my desktop or in finder.  The light is on when connected, and in the Disk Utility it appears. 
    1.  It was naturally created with a partition on it (all of the 1TB allocated to it) and it appears in the Disk Utility as well; however, it is grayed out. 
    2.  I clicked the actual drive in DU and it was verified as being ok.  I clicked on the partition next to verify and it said "Error disk needs repaired"
    3.  So I clicked repair, "Disk Utility cannot repair the disk..restore as many as your backed-up files...etc."
    4.  No problem (the data on the hard drive is used for my Time Machine back ups and my current internal hard drive is working fine with all the data intact)
    5.  Ok, so I click the erase tab on the entire external hard drive...erase..."Disk cannot be unmounted"
    6.  Ok, I try to erase the invidual partition..."Could not open disk"
    It seems every time I try to erase this drive completely im hitting blocks.  I even tried this method from the OS X Recovery menu (Command+R on startup).  I would greatly appreciate any help to just get this whole thing external hard drive erased and start anew.  How else would I go about this?
    (pictures for reference)
    Thank you all

    If this is your only backup device, you need to start a new backup on another drive immediately. Don't erase (or try to erase) your only backup.
    After you have the other backup, boot into Recovery and try again to erase the volume. You will have to unlock it before you can do anything with it, because it's encrypted.
    If you still can't erase it, the drive has failed.

  • Can't create a 3rd partition in Disk Utility

    Long story short I have used Boot Camp to get Windows, so I have 2 partitions. But, I need to create another partition to install another copy of Windows on it, but Disk Utility has grayed out the '+' to allow me to create a new partition. All I can do is delete the 'BOOTCAMP' partition which I don't want to do. I tried another way by going into Boot Camp Assistant and installing Windows through there. I have a bootable USB drive and I know how to install it, all that's stopping me is the partition issue.
    Any ideas?
    If it helps, I'm using a Late 2013 MacBook Pro with a 15" Retina Display, 2.5 GHz, 512 GB SSD, 16 GB RAM and a NVIDIA GT 750 M.
    Thank you for your help

    Good thing to mention that, I forgot to do that.
    Unfortunately it did not help.. The screen to remove the existing Boot Camp partition does not pop up, it just tries to create the new Boot Camp partition.
    The partition I'm trying to create it 150GB. The 50GB mentioned above was on the stock Fujitsu 250GB disk.
    Edit:
    I'm actually trying to avoid using Boot Camp Assistant.. I became to dislike the utility due to problems creating a partition on my previous HD.
    I would like to create a partition using Disk Utility and then install Windows 7 by selecting that DVD to boot from.
    Thank you for the tip though, I'll post it there as well!

  • HT1553 How to backup an image of internal hard drive on external hard drive with disk utility

    I've followed the instructions under the paragraphph 'Instructions for backing up to an external hard disk via Disk Utility
    in this article: http://support.apple.com/kb/ht1553. My external hard drive is plugged in. I mount my install DVD of Leopard and restart. Press C to boot on the DVD, select the language and go to Utilities -> Disk utility.
    However I'm blocked in step 9 when I have to choose the destination. I don't have the option to select my hard drive to back up the image. I only have 2 options: root or Applications to save the image. Nevertheless, I can see my external hard on the left.
    - Could it be because the internal hard drive is encrypted? 
    - Could it be  because the external hard drive is encrypted? 
    Note also that the button 'Verify disk' is greyed out.
    Any clue?

    I always advise Mac users to never:
    encrypt a disk
    set a firmware password
    In my experience they cause more loss of data than they are worth.
    On Leopard I always use the latest free Carbon Copy Cloner to backup and clone disks - it is so simple to clone to either a disk or disk image. The free version may not be compatible with later OSs.
    As you appear to be on the wrong forum I will follow this with my standard message.
    Whilst it may not be your fault I am afraid it appears that your post is on a forum which is not the best for your OS. It will save the time of the unpaid volunteers here, and may resolve your issue faster, if you could examine the list below and see if there is a more appropriate forum to which you could direct your question.
    OS X 10.9 Mavericks
    OS X 10.8 Mountain Lion
    OS X 10.7 Lion
    OS X 10.6 Snow Leopard
    OS X 10.5 Leopard
    OS X 10.4 Tiger
    OS X 10.3 and earlier
    OS 9, OS 8 & System 7
    OS X Technologies
    OS X Server
    iPad
    iPhone
    iPod
    Other

  • I Can't Erase the Empty Space with Disk Utility

    It always gets stuck. Last time i tried it, it went all the way almost to the end of the fill bar. then it got stuck.
    But even when i did manage to do it using the FASTEST option which just writes ZEROS over the free space 1 time..   I used DISK DRILL to see if it could recover data and yup..it was still recoverable.   Another thing i did was  fill my free disk space with big huge movie files.  And old stuff was still recoverable with Disk drill.
    But anyway why Disk Utility Erase Free Disk Space gets stuck? And also  why disk drill can still find files even after i empty free disk space or when i fill empty free disk space with new files?

    Drive Preparation
    1. Boot from your Tiger 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 Utilities menu.
    2. After DU loads select your 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.  SMART info will not be reported  on external drives. 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. 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.
    4. After completion quit DU and return to the installer. Continue with Tiger installation.

  • How to backup an image of internal hard drive on external hard drive with disk utility

    I've followed the instructions under the paragraphph 'Instructions for backing up to an external hard disk via Disk Utility
    in this article: http://support.apple.com/kb/ht1553. My external hard drive is plugged in. I mount my install DVD of Leopard and restart. Press C to boot on the DVD, select the language and go to Utilities -> Disk utility.
    However I'm blocked in step 9 when I have to choose the destination. I don't have the option to select my hard drive to back up the image. I only have 2 options: root or Applications to save the image. Nevertheless, I can see my external hard on the left.
    - Could it be because the internal hard drive is encrypted?
    - Could it be  because the external hard drive is encrypted?
    Note also that the button 'Verify disk' is greyed out.
    Any clue?

    forget about that and just use the free APP Superduper
    HD cloning software options:
    1. SuperDuper HD cloning software APP (free)
    2. Carbon Copy Cloner APP (will copy the recovery partition as well)

Maybe you are looking for