RAID using disk utility and unequall drives

I just recieved 2 drives I need to RAID and unfortunately the retailer sent me 2 different drives.
I ordered 2 Maxtor Diamond Max10 250GB IDE drives.
I recieved one 250GB and one 300GB accidentally.
question is: Can I RAID them together anyway? (stripe, not mirror)
Will there be any disadvantages. I am using these for video editing.
Drive model numbers are as follows:
250GB drive: Maxtor 6B250R0
300GB drive: Maxtor 6B300R0
thanks a million!

Yes. You can RAID the 2 differently sized drives. No known disadvantages except for the fact that the retailer did not screw up twice and send you 2 of the 300s!
Beavis2084

Similar Messages

TS1338 I have 4 Trojan Horse viruses on my external drive I use for Time Machine. My MacBook Pro hard drive is clean. I have eased the external drive 3 times using Disk Utility and it still has the 4 Trojan Horse viruses. How do I get rid of them. Wayne

I have 4 Trojan Horse viruses on my external drive I use for Time Machine. My MacBook Pro hard drive is clean. I have eased the external drive 3 times using Disk Utility and it still has the 4 Trojan Horse viruses. How do I get rid of them. I am using 10.8.3 Wayne

ksu62 wrote:
The infection names are: classload.jar-719ef6a5.zip
                                          classload.jar-5db452le31.zip
                                          ar3.jar-6ce3b2f-45l483f.zip
                                          classload.jar-lef99412-63bsd3fl.zip
Those look alot like file names and not infection names. I don't find any reference to anything like that on Norton or VirusTotal. Since you said these were Trojans, I would expect to see "Trojan" as part of the infection name.
".jar" files are executable Java applets. The random alpha-numerics would seem to indicate a cache file, likely from a browser with Java enabled. And we all know what ".zip" means.
Worst case is that you had Java enabled in a browser and were infected by one of the late variants of the Flashback Trojan over a year ago or one of a couple of other attacks using the same vulnerability but targetted against a small number of political sympathizers. Much more probable is that thes were Windows only Trojans. Hopefully you have a fully up-to-date OS X, including Java, and have disabled Java in all your browsers by now.

When I repair disk permissions using Disk Utility and it says it's completed the task, I click on it again and it repairs more. This has been going on for hours now. Could there be that many wrong permissions? Should it get to "all repaired" eventually?

When I repair disk permissions using Disk Utility and it says it's completed the task, I click on it again and it repairs more. This has been going on for hours now. Could there be that many wrong permissions? Should it get to "all repaired" eventually?

It's normal behavior. You don't have to worry about. Most of what's listed is just a report of what the utility finds., not necessarily that there is omething wrong.
If you want to find out more, read the link below, or see the More Like This links on this page.
http://support.apple.com/kb/TS1448?viewlocale=en_US

I burned an exercise DVD using disk utility and when I played it in my DVD player it was choppy and skipped. Any suggestions are greatly appreciated.

I burned an exercise DVD using disk utility and when I played it in my DVD player it was choppy and skipped. Any suggestions are greatly appreciated.

Commercial
Roxio Toast
<http://www.roxio.com/enu/products/toast/titanium/>
NTI DragonBurn
<http://www.ntidragonburn.com/en/us/product/dragon_burn.asp?>
Shareware or freeware
DVD Image Utility
<http://geek.thinkunique.org/2007/07/17/dvd-image-utility/>
Disco
<http://discoapp.com/>
no longer supported, but free, simple, and runs well under SL.
LiquidCD
<http://www.maconnect.ch/>
free; iffy support, but, again, simple, and runs well under SL.
Burn
<http://burn-osx.sourceforge.net/Pages/English/home.html>
open source; not clear how active development and support are, but runs well under SL.
Terminal Whiz Kid
mkisofs
<http://cdrecord.berlios.de/private/cdrecord.html>
(part of the cdrtools kit)
Use mkisofs to create the disc image, and burn it with hdiutil or drutil. (Some of the free options mentioned above actually use mkisofs.)

Resized partition using Disk Utility and now Windows 7 will not boot

Hi,
Hopefully someone can help me!!
I had previously used Boot Camp to install Windows 7. However, I later realised I had not given myself anywhere near enough disk space as I started using Windows for things I hadn't originally planned on using it for.
Anyway, long story short, to solve the problem I uninstalled some applications on my Mac OSX and used Disk Utility to decrease the size of my Mac partition. My plan was then to reboot to Windows and use a Windows application to increase the size of the Windows partition. However - I coudln't even get that far.
Upon decreasing the size of my Mac partition (succesfully) I restarted my Mac in order to boot to Windows. However, I was greeted with a message along the lines of "unable to boot to Windows please insert boot disk and press any key" (I can't remember the exact message).
I was wondering if anyone knows of any way to restore my Windows partition, retaining all of my previously saved files on my Windows disk. It's probably a long shot, but the thought of losing everything I have been working on for the last few months is a sickening one.
What does give me a bit of hope is that, if I click Boot Camp it seems to recognise that Windows 7 is installed as the option that appears is to uninstall it.
Furthermore, if I view partitions in Disk Utility, a "DISK0S4" is listed. However, it's only at 20gb - if this WAS my BootCamp partition previously, it was originally at something around 60gb (I think - either way, definitely bigger than 20gb!).
On top of this, my current Macintosh HD parition is at 260gb and with the DISK0S4 partition at 20.21gb, there seems to be some space missing... I'm hoping this is the files I've been working on over the last few months!
Anyway, I've done some searching on the net and it *seems* that GPT fdisk *might* be my savour. I've downloaded it but have no idea how to use it and don't plan on playing about with it as I could no doubt do some real damage. If it is likely to solve my problem however, I'm certainly more than capable of being walked through what I need to do.
Please help!

Hi Christopher,
I also have problems with Windows rebooting after partition resize trying to reduce Mac side and increase Windows side. I do not see the BootCamp partition labelled as such while running disk utility. The Windows partition shows up when I boot up while pressing the ALT key. However, when I try to run Windows, it says " error loading operatig system".
I also followed instruction and went through to run gdisk successfully. Results towards the end.
What can be done? Windows still does not boot and It shows ? Suspicious MBR at sector 0.
Below is information based on typical questions you ask.
diskutil list
/dev/disk0   #:                       TYPE NAME                    SIZE        IDENTIFIER
   0:              GUID_partition_scheme                        *120.0 GB     disk0
   1:                                           EFI                         209.7 MB     disk0s1
   2:                         Apple_HFS Macintosh HD            78.5 GB     disk0s2
   3:                       Apple_Boot Recovery HD             650.0 MB     disk0s3
   4:                   Microsoft Basic Data                         31.7 GB      disk0s4
sudo gpt -r -vv show disk0
gpt show: disk0: mediasize=120034123776; sectorsize=512; blocks=234441648
gpt show: disk0: Suspicious MBR at sector 0
gpt show: disk0: Pri GPT at sector 1
gpt show: disk0: Sec GPT at sector 234441647
      start       size            index       contents
          0          1                             MBR
          1          1                             Pri GPT header
          2         32                            Pri GPT table
         34          6
         40     409600           1            GPT part - C12A7328-F81F-11D2-BA4B-00A0C93EC93B
     409640 153240016      2            GPT part - 48465300-0000-11AA-AA11-00306543ECAC
153649656    1269544     3            GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC
154919200   17628896
172548096   61892608    4            GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7
234440704        911
234441615         32                       Sec GPT table
234441647          1                        Sec GPT header
sudo fdisk /dev/disk0
Disk: /dev/disk0 geometry: 14593/255/63 [234441648 sectors]Signature: 0xAA55
         Starting       Ending
#: id cyl hd sec - cyl hd sec [     start -       size]
1: EE    0   0   2 - 1023 254 63 [         1 - 172548095] <Unknown ID>
*2: 07 1023 254 63 - 1023 254 63 [ 172548096 -   61892608] HPFS/QNX/AUX
3: 00    0   0   0 -    0   0   0 [         0 -          0] unused
4: 00    0   0   0 -    0   0   0 [         0 -          0] unused
sudo gdisk /dev/disk0
GPT fdisk (gdisk) version 0.8.7
Warning: Devices opened with shared lock will not have their
partition table automatically reloaded!
Partition table scan:
MBR: hybrid
BSD: not present
APM: not present
GPT: present
Found valid GPT with hybrid MBR; using GPT.
Command (? for help): r
Recovery/transformation command (? for help): h
WARNING! Hybrid MBRs are flaky and dangerous! If you decide not to use one,
just hit the Enter key at the below prompt and your MBR partition table will
be untouched.
Type from one to three GPT partition numbers, separated by spaces, to be
added to the hybrid MBR, in sequence: 4
Place EFI GPT (0xEE) partition first in MBR (good for GRUB)? (Y/N): y
Creating entry for GPT partition #4 (MBR partition #2)
Enter an MBR hex code (default 07):
Set the bootable flag? (Y/N): y
Unused partition space(s) found. Use one to protect more partitions? (Y/N): n
Recovery/transformation command (? for help): o
Disk size is 234441648 sectors (111.8 GiB)
MBR disk identifier: "DELETED INFO"
MBR partitions:
Number Boot Start Sector   End Sector   Status      Code
   1                               1    172548095   primary     0xEE
   2           *     172548096    234440703   primary     0x07
Recovery/transformation command (? for help): w
Final checks complete. About to write GPT data. THIS WILL OVERWRITE EXISTING
PARTITIONS!!
Do you want to proceed? (Y/N): y
OK; writing new GUID partition table (GPT) to /dev/disk2.
Warning: Devices opened with shared lock will not have their
partition table automatically reloaded!
Warning: The kernel may continue to use old or deleted partitions.
You should reboot or remove the drive.
The operation has completed successfully.

Using Disk Utility to partition drive

After downloading a system update yesterday my mac mini hard drive is no longer bootable. The recovery HD is unbootable, too.
When I boot up using the install CD I can run Disk Utility and see that there are no problems reported with the hard drive, but I cannot repair permissions (No valid packages).
If I restore the operating system from the CD my only option is to erase the hard drive.
But what if ...
I create a new partition using Disk Utility?
There's loads of free space on the drive, but if I attempt to create a new partition will I wipe out existing data?
If I succeed in creating a new partition would I be able to restore the operating system there without erasing the hard drive?
Would it be possible then in some way to restore my user account data?
I'm just trying to avoid the hassle of re-installing my applications and recovering my data files from backup. It seems like the data is still all there on the hard drive except that something went wrong during the system update that renders the disk unusable.
Any help appreciated.

Yep, that is too old...
Mac mini
Mac OS X Install Disk 1
Mac OS X version 10.4.7
AHT version 3A102
Disc version 1.1
2Z691-5887-A
Mac OS X Install Disk 2
Disc version 1.0
ZZ691-5860-A

HT201250 Can I make my iMac think it has more (HDD) memory (not RAM) by using disk utility and an external 500GB drive?

I have a Macbook Pro and iMac which are both great. But my 500gb hard drive isn't big enough to backup my 320GB MB PRO
I thought maybe I can attach my HDD to my iMac to give it more memory. Then backup to the iMac
If this isn't possible, could I login as an iMac user on my macbook pro and just have a mini server using my iMac and MB PRO? (My sister and parents use the iMac as their primary computer, i use my MB Pro as mine, so they would have to be able to use the computer at the same time as me using my macbook)
In otherwords, I just want to be able to back up wireleslly but still acces all my files on both computers offline.

If you're talking about TIme Machine backup, it should be dleting as it goes but I agree you need more to run that effectively.
One solution, instead of TM would be to make a bootable clone with either SuperDuper or CarbonCopy Cloner
and use that as your backup solution until you get a disk large enough for TM.

Disk Utility and Hard Drive replacement on MacBook.

I am preparing to upgrade the hard drive on my MacBook and I was reading this document http://manuals.info.apple.com/en/MacBook13inch_HardDriveDIY.pdf and a the end after installing the hard drive and preparing to install Mac OS X the directions state the following: "Leave the Disk Utility application open, and restore the backed up files from the image you created before removing the hard drive.". I think that this would be a much quicker option then having to re install every application and copy over back up user data. My question is how do I create an image of the contents of the hard drive to use once I upgrade the drive?

I'd just clone (make a complete bootable backup) the internal to a backup external drive, swap out the internal, then clone back. That way you wouldn't have to do any installations.
To backup (clone) your main drive, you can use the donationware CarbonCopy Cloner @ http://www.bombich.com/software/ccc.html , or the shareware SuperDuper @ http://www.shirt-pocket.com/SuperDuper/SuperDuperDescription.html , or the freeware IBackup @ http://www.grapefruit.ch/iBackup/index.html, or the Restore function of Disk Utility included in OS X.

My external drives no longer appear in Finder, BUT they do appear in Disk Utility (and network drives appear also)

Hi folks, I hope someone can assist. I have a Mac Mini 2011 running 10.8.5. All has been well. Suddenly, when I plugged in an external flash drive (USB), nothing showed up in Finder. Things I have done:
Confirmed SideBar and other Finder preferences are set to show/reveal external, network, and internal HDs
Tried multiple flash drives and hard drives, using drives formated in GUID/OSXExtended as well as FAT and NTSF. None show up.
Confirmed that the Hidden flag in terminal is not set.
Note: I can see the drives in Disk Utility, but the partitions/volumes are gray and will not be mounted.
Note: Network drives and internal drives appear and work as expected
Note: My network Time Machine also appears and performs as expected.
The only suspect I can think of is a small, free app I installed this morning called Caffein (which manages the sleep mode).
Also, I loged out and switched to another user account on the same machine (that I use solely for the purpose of troubleshooting), and it was similarly affected.
Thanks in advance!
Dave

This procedure is a diagnostic test. It makes no changes to your data.
Please triple-click anywhere in the line below on this page to select it:
diskutil list | pbcopy
Copy the selected text to the Clipboard by pressing the key combination command-C.
Launch the built-in 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 by pressing the key combination command-V. I've tested these instructions only with the Safari web browser. If you use another browser, you may have to press the return key after pasting.
Wait for a new line ending in a dollar sign ($) to appear below what you entered.
The output of the command will be automatically copied to the Clipboard. If the command produced no output, the Clipboard will be empty. Paste into a reply to this message.
The Terminal window doesn't show the output. Please don't copy anything from there.
If any personal information appears in the output, anonymize before posting, but don’t remove the context.

Rebuilding a Mirrored Raid using Disk Utility

I have a mirrored raid set up via disk utility. For some reason one drive was switched off recently so the 2 drives are now out of sync. Disk utility now says the raid is 'Degraded' with one of the slices marked as 'failed'
I can ignore this as the drive appears fine on the desktop. But I need it to be working correctly as a fully operating RAID.
If I click 'rebuild' it gives a warning saying 'Rebuilding a RAID set will destroy all information on the replacement disk “RAID Slice”.
SO- I'm assuming rebuild will correct the error and make it work but I'm concerned about this warning about destroying data! I assume it will simply copy everything from Drive A to the 'degraded' Drive B??
Thanks for any suggestions.

"SO- I'm assuming rebuild will correct the error and make it work but I'm concerned about this warning about destroying data! I assume it will simply copy everything from Drive A to the 'degraded' Drive B??"
This should indeed be the way it goes but since i do not have enough experience with that kind or RAID setup i strongly suggest backing up / cloning drive A to an external before doing the rebuild... just in case.

I was erasing my Macbook pro using disk utility and it is frozen? Help!?

Ok So I was erasing my macbook to restore it using the disk utility. When I clicked erase it began the proccess. It has been stuck staying unmounting disk for a few hours now and the mouse wont move. I am afraid to restart it because I dont want to mess up the process and destroy my computer. Can someone help?!

mac_daddy02,
if you’re trying to erase your Mac’s internal disk, what do you fear might be destroyed by interrupting the erasure?

Missing disk utility and DVD drive

Hi,
My father has a macbook with Leopard installed.
He deleted some files/apps by mistake including the Disk Utility.
Also (and to help!!!) the DVD drive stopped working.
Can anyone tell me how can I reinstall the Leopard (or the Snow Leopard that I have on my macbook pro)?
Thank you very much

miguelporto wrote:
My father has a macbook with Leopard installed.
He deleted some files/apps by mistake including the Disk Utility.
Also (and to help!!!) the DVD drive stopped working.
Can anyone tell me how can I reinstall the Leopard (or the Snow Leopard that I have on my macbook pro)?
Welcome to Apple's discussion groups.
If the DVD drive stopped working because of the files he deleted, you may be able to boot from a Leopard installation disc and reinstall it.

HT1553 I'm trying to restore data from an external drive to the Macintosh HD that is was originally recovered from. I'm using disk utility and hit a brick wall when I click restore it asks me to scan the Macintosh HD but doesn't let me do this. what do i

I'm trying to restore data from an external drive to the Macintosh HD from which they were originally recovered. I hit a brick wall where it says I have to scan it first and it doesnt let me.

Adding Drive to Concatenated RAID in Disk Utility

Hello,
I'm having a spot of trouble with Disk Utility. 24 hours ago I added a new drive to a Concatenated Raid through Disk Utility, and clicked Update to set the process going.
Now it's not responding. It just claims to be updating. I struggle to believe that it takes this long though!
I didn't format the disk before adding it to the RAID. Is this what's causing the upset?
When I try to cancel it tells me I risk losing data on the disk. I'm not sure if it means the new disk or all disks on the array - which is a terrifying prospect. If I quit Disk Utility, will my existing data on the array be safe?
Thanks in advance for the help,
Ben

The drives are in Sonnet P500 enclosures and connected to the MacPro via a Sonnet SATA card.
On purhcase I was told this could be done, as it's a Concatenated JBOD setup. For a better description of what I mean by that, this wiki article describes it well http://en.wikipedia.org/wiki/StandardRAIDlevels.
Does this provide any further clues?
Currently there are 7x 1TB drives in 2 enclosures. I've now added 2 more 1TB drives. I can currently see and continue to use the data on the existing 7 drives. My worry though is that if I quit the disk utility I may lose the data on the 7 original drives.

Disk Utility and Disk Warrior error on internal hard drive....PLEASE HELP!!

After running idefrag on my internal Western Digital 120gig hard drive. The drive did not appear after I rebooted my mac. I opened Disk Utility and the drive is there but grayed out. I used "repair disk" under First Aid and it gave me this error:
Verify and Repair disk “HD 120”
Checking HFS Plus volume.
Invalid B-tree node size
Volume check failed.
Error: The underlying task reported failure on exit
1 HFS volume checked
1 volume could not be repaired because of an error
Then I tried using Disk Warrior 3.0 to rebuild and it gave me this error:
error ""WD 120 GB" cannot be rebuilt. The original directory is too severely damaged. The disk was not modified (2155, 2179)".
I'm not sure if this is the right area to post this, but I need help as most of my important data is on this hard drive. What else can I do?
I am on a g4 quicksilver with 10.4.3 installed.

Sorry to hear about your problem but unless you are working with very large files such as with video editing, etc., using a defrag utility is not required with OS X and no defrag utility should be used on a hard drive without a backup first.
The current Disk Warrior version for Tiger is 3.0.3 and if Disk Warrior cannot repair the drive/directory, it must be in bad shape which was caused by using idefrag.
You can try using a data recovery utility such as Data Rescue (Prosoft Engineering) which includes a free trial version.

RAID using disk utility and unequall drives

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