Using Disk Utility for RAID setup?

I just purchased 2 1TB Seagate Hard Drives 32mb cache 7200prm that I want to setup a RAID 0 (striping I believe) for Final Cut Pro for rendering. Well I also have a 3rd drive that is identical, question is does more drives in that RAID setup mean faster performance? 2 drives vs 3 or 4, etc.? Also what do you think that actual difference in reading and writing would be approximately?

You can find the max sustained, the average I/O, and minimum. From reviews and Seagate product spec details. There is some overhead for each drive as you seek and assemble the parts of a file.
The burst rate of the drive is likely around 135MB and average of the outer half a solid 100MB/sec.
The bandwidth in the Mac Pro totals 1GB for all drives, even though each is supposed to have 3Gbps.
SSDs are fast catching on for speed and fast system drives, even in stripe raid.
Don't mix 7200.12 with .11s or even different model/series/firmware. And Seagate has had its hands full with firmware issues for years, going back to the intro of SATA actually.
If you want one large volume and if having 200MB/sec matters or helps, you might want to RAID, even partition each drive first to 3/4 level and stripe that 3/4 together to guarantee 200MB/sec range.
But experiment for a couple weeks first.

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Using Disk Utility for backup - target drive must be same size as source?

Hello. I have a 250 GB data drive that I need to back up to an external drive using Disk Utility (restore) so that I can create a RAID-1 set using the 250GB drive. The files take up only 100 GB on the drive.
Does the target external drive need to be 250 GB or just 100+ GB in size for the Disk Utility to work?
Thanks
David

I you want to make a non mirrored drive into a mirrored one you can do that with diskutil. Copying it first is not needed.
man diskutil:
enableRAID mirror|concat device
Convert single filesystem disk or volume into a unpaired mir-
ror RAID set or concat set. Ownership of the affected disk is
required.
repairMirror raidDisk newDisk
Repair a failed mirror. Supply the existing RAID as the raid-
Disk parameter. Supply the new disk as the last parameter of
the request. newDisk and raidDisk are only Device Nodes or
Disk Identifiers. Ownership of the affected disk is required.
The second disk in the mirror set needs to be as big or bigger as the first disk.
Do this booted from another disk or DVD.

Using Disk Utility for Boot Camp to work

I'm trying to install Windows 7, but Boot Camp gave me the old error message about having unmovable data and needed to use Disk Utility to format it as a Single Mac OS Extended (Journaled) Volume. So I backed everything up and am ready to go, but when I open Disk Utility and select my hard drive/disk, all the options under "erase" are grayed out. Any ideas?
Thanks!

You can't format what you are using.
If you cloned your drive you would be able to boot from that; if you used another method and you don't have OS X installed on another hard drive, you have to use your DVD.

Warning signs when using disk utility for my power mac g5

I have a dual 2GHz PowerPC G5. I just upgraded to the latest Leopard & installed FCP2. I noticed when I use Repair Disk Permissions, there are so many warning signs & I'm not sure what to make of it. I do notice that my computer freezes a lot, can someone help interpret these warning signs for me? And, how do I fix it? Here are some samples of those warning signs during repair disk permissions:
Warning: SUID file "sbin/mount-nfs' has been modified and will not be repaired.
Warning: SUID file "sbin/unmount" has been modified and will not be repaired.
Warning: SUID file "sbin/ping' has been modified and will not be repaired
Warning: SUID file "sbin/ping6" has been modified and will not be repaired
Warning: SUID file "sbin/route" has been modified and will not be repaired
The list goes on and on, please help.
many thanks in advance.

The catalog is the index for all the files on disk. It is useless without the related disk files so cloning just the catalog isn't really an option. You would need to clone the entire drive (SuperDuper!, Carbon Copy Cloner and even Disk Utility will do this).
Disk Warrior is a utility to clean up the catalog, make it into an order that should speed up file operations. It has potential to loose files because of the nature of it's job, but it is pretty reliable in my opinion. The catalog is like a telephone directory for files
The repairing of permissions involves the system keeping receipts of all the things that are installed & updated (with the appropriate permission values) and then the repair permissions utility resets the files to what the receipts say. The recieots are kept in the /Library/Receipts folder. You haven't deleted anything from there have you? if you have you would need to replace them with copies from a similar system, not an easy task.
I believe the items contained in /sbin/ are system binaries that come from the BSD package when installing Mac OSX. I would consider doing software updates then try repairing the permissions again.

I tried to burn windows 7 Iso using disk utility for more than 3 time with the minimum speed, but all the three times I got error saying "disk burn failed unable to verify"?

I have tried with three different blank DVDs but all got the same error message. But after I got the error message when I reinsert the DVD I can see the ISO in the DVD. So I went a head with the installation but the installation stops just after it starts. I have even tried burning the disk at 2X speed.

It sounds like your optical drive may be dirty. The lens probably needs a cleaning. You can go to somewhere like Best Buy and pick up a cleaning kit.

When using disk utility to copy one drive to another is it common for the screen to go black

I have a G5 and the main HD is making a little noise. I installed a new HD and was using disk utilities to copy the old to the new. The message came up that it would take 5 hours to copy. The screen went black ... is this common? How do I know it's doing it's thing?

I always set the Energy Saver settings to "never" whenever I do things like volume cloning, software (especially OS) downloading and installing, or using Disk Utility for most anything.

Reformat external hard drive for Windows machine using disk utility

I have a Maxtor 160GB dual-interface external HD. I used it for my Mac OS X. I erased and reformated the hard drive on my Mac to MS-DOS using Disk Utility for use on my fathers Windows XP. I hooked the hard drive up to the Windows machine and the hard drive was visible in both Windows Explorer and on the task bar. I right clicked on the hard drive and selected Format. The formatting takes a while but at the end an error appears indicating the hard drive was not formattable. How can I get a MS-DOS formatted hard drive (from a Mac) to be used on a Windows XP machine with a NTFS format?

Turns out it is possible:
Maxtor Support..
I would use your Disk Management utility within Windows to repartition and reformat the drive. To access Disk Management, right click on My Computer, go to Manage, and then choose Disk Management. Within Disk Management the drive should show in your list of disks (Disk 0,1,2 etc etc). I would delete any partitions that are on the drive. To delete a partition, just right-click on the partition and choose delete. Make sure you’re deleting the correct drive. Once the entire drive says unallocated then the drive should be ready to partition and format. Just right click within the Unallocated Space on the drive and choose the New Partition or New Volume option to set up the drive.
I followed the instructions and everything worked.

Using Disk Utility to clone one FW Drive to another FW Drive

can I use Disk Utility to clone one external firewire drive to another external firewire drive? How would I go about this? I am using a PowerBook G4, 1.67 Ghz, 17 in, 2 gig ram with Mac OS 10.3.9
I have both firewire drives connected to the PowerBook.

Yes, you can use Disk Utility for this purpose.
1) Open Disk Utility.
2) In the left hand column, click on one of your Volumes (if your disks are partitioned, this will be one of your named volumes).
3) In the right hand box, you will now see three buttons: First Aid, Erase, Restore. Click on Restore.
4) Drag the volume name of the partition that you want to copy to the "Source" box. Its name should appear in the box. Drag the volume name of the partition that you want to overwrite to the "Destination" box. Its name should appear.
5) Click "Restore" in the lower right corner. You might want to also check the box "Erase destination".
6) Wait patiently, if all goes well you should have a bootable clone. Be sure to test the clone for bootablity before relying on it. Also, do a "Get Info" in the Finder after cloning to make sure the "Ignore Permissions on this Volume" box is not checked, and then use Disk Utility to repair permissions on the volume.
Good Luck!

Disk Utility : Partition / Raid or Raid / Partition ?

I have two external USB drives that I'm attempting to set up using Disk Utility.
I'd like to create either
- one RAID1 set with two partitions, or
- two RAID1 sets with one partition
however I'm not having much luck with either option. Is either scenario possible?

After some experimentation, I seem to have come up with a kludge ...
Partition both disks into identical volumes (A1 = B1, A2 = B2)
Using Disk Utility :
- create RAID Set 1 ( A1 + B1 = RAID1)
- create RAID Set 1 ( A2 + B2 = RAID2)
Error message 'Creating RAID set failed'
Restart ...
Using Disk Utility :
- click on partition A2 (now renamed RAID Slice)
- Erase partition
Upon erasing the partition / RAID slice will remount and the Disk Utility should show two RAID sets. A cursory examination of each RAID set's behavior leads me to believe it is simply a bug in Disk Utility that prevents the creation of two RAID sets on the same disk pair.

Builidng RAID on mac pro using disk-utility

Hello,
i want to build a RAID on my Intel mac.
First idea was using Disk Utility (DU).
Is DU able to create RAID 5 or only RAID 0/1 ?
If yes, and hints / or useful links ?
I have googled for a while but most hints are regarding raid 0/1 and/or mac xserve systems with specific cards/controllers
or should i use: softRAId app ?
and:
if there is a solution:
is the software raid 5 at apple really too slow to be happy ? is hardware-raid the only working solution ?
best regards
fidel

Check out some of the PCIe hardware controllers. There is CalDigit
RocketRAID reviewed by AMUG (they do excellent in-depth reviews).
Areca ARC-1220 RAID might be an option at some point. Would be nice if it did - but I don't see Mac Pro or OS X support.
http://www.areca.com.tw/products/html/pcie-sata.htm
I prefer SoftRAID, but you'll have to wait for 3.6, or do as some and use Apple's and create RAID 1+0. Or XRAID

I have a 32GB thumb dr and I wanted to encrypt it. I used disk utility, Partition, apply. Then went back and tried to encrypt it and it still ask that GUID be setup on it. What must I do now, or how is the better question?

I have a 32GB thumb dr and I wanted to encrypt it. I used disk utility, Partition, apply. Then went back and tried to encrypt it and it still ask that GUID be setup on it. What must I do now, or how is the better question?

I have a 32GB thumb dr and I wanted to encrypt it. I used disk utility, Partition, apply. Then went back and tried to encrypt it and it still ask that GUID be setup on it. What must I do now, or how is the better question?

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

After Server Administration Software for 10.6.8 install on my mac- Now I can't use Disk Utility ?

I installed ServerAdministrationSoftware for 10.6.8 on my mac- NOW I can't use Disk Utility - get Dyld Error Message: Library not loaded: /System/Library/PrivateFrameworks/PlatformHardwareManagement.framework/Versions /A/PlatformHardwareManagement? Also, the only reason I installed this was for the Workgroup Monitor which kicks out the same error.
Any help would be appreciated!

FireFox can't open lots of files it isn't suposed to. DMG is opened by the Mac osx as a virtual volume file you just drag the FireFox icon to where you want it installed. Check your desktop for a FireFox volume... like a drive. Double click the DMG file if it is not there. This is how Mac works it has nothing to do with FireFox, many apps install this way!

Cannot repair disk errors for OSX boot volume using Disk Utility while booted from different disk

I have tried three times to repair my boot volume (OSX 10.6.8 Snow Leopard) permissions using Disk Utility while booted up on a different volume (running Snow Leopard 10.6.4). After hours of Disk Utility reporting that it HAD fixed the problems, an immediate click of "Verify permissions" immediately results in the apparently same continuous stream of permission errors.

Then better luck next time around. Here are some ideas for then:
How to Install Lion Successfully - You must have Snow Leopard 10.6.7 or 10.6.8 Installed
A. Repair the Hard Drive and Permissions:
Boot from your Snow Leopard Installer disc. After the installer loads select your language and click on the Continue button. Then select Disk Utility from the Utilities. 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. Now restart normally.
If DU reports errors it cannot fix, then you will need Disk Warrior (4.3.) if DW cannot fix the drive, then you will need to reformat the drive and reinstall Snow Leopard.
B. Make a Bootable Backup Using Restore Option of Disk Utility:
Open Disk Utility from the Utilities folder.
Select the destination volume from the left side list.
Click on the Restore tab in the DU main window.
Check the box labeled Erase destination.
Select the destination volume from the left side list and drag it to the Destination entry field.
Select the source volume from the left side list and drag it to the Source entry field.
Double-check you got it right, then click on the Restore button.
Destination means the backup volume. Source means the internal startup volume.
C. Important: Please read before installing:
If you have a FireWire hard drive connected, disconnect it before installing the update unless you will boot from this drive and install the update on it. Reconnect it and turn it back on after installation is complete and you've restarted.
You may experience unexpected results if you have installed third-party system software modifications, or if you have modified the operating system through other means. (This does not apply to normal application software installation.)
The installation process should not be interrupted. If a power outage or other interruption occurs during installation, use the standalone installer (see below) from Apple Downloads to update. While the installation is in progress do not use the computer.
D. To upgrade to Lion:
Purchase the Lion Installer from the Mac App Store. The download will start quickly. Lion is nearly 4 GBs so a fast internet connection is essential. Download time could run upwards of 4 hours depending upon network conditions and server demands at the time.
Boot From The Lion Installer which is located in your Applications folder.
Follow instructions for installation.

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.

Using Disk Utility for RAID setup?

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