Hard disk format, hard disk format

Trying to format an external hard disk. When plugged in the hard disk is not showing in my desktop...

marcfrommarseille wrote:
Trying to format an external hard disk.
What Brand is it? What connection method (USB, FireWire or Network) are you using? Why and what do you want to change the Format to? Is it new, old, was it working before?
marcfrommarseille wrote:
When plugged in the hard disk is not showing in my desktop...
Is the box for ☐ External disk check in your General Finder Preference? Have you checked in Disk Utility or your System Profiler to see if it is recognized by the iMac?
Dennis

Similar Messages

I have formatted my SSD and hard drive.... I am running a clean install from disk of 8.1 pro. I cannot determine if it is a compatibility

issue or hardware issue. I had run a memory test and scan disk for bad sectors from the bios. As administrator, I enabled automount in diskpart to allow windows to assign a drive name.
From the bios, I can see both drives and only the ssd. I have not pinpointed when the harddisk is unmounted. It is formatted as NTFS. I can hear it unmount either during boot or upon waking from sleep mode. The bios sees no bad sectors nor does windows.
However, when I had the intel compatibility software installed, my hard drive never mounted. I did a restart and inorder for windows to see my hard drive. I disabled the intel software for the 4th gen i7 processor. This problem is happening less often. I do
not think I have solved the problem. Intel or Windows... I think a bit of both.
If there is a software patch, please guide me to it. I am in school and use my laptop ALL the time. I believe it is a compatibility issue. I have attached this from searching intel's site for downloads and windows is up to date.
I am quite concerned because I can hear my harddrive unmount. It is labeled as healthy NTFS partition. I have checked for hidden volumes and done everything I know to do to check the integrity of the hardware as administrator. I have searched microsofts
libraries and forums and have done everything I can find as suggestions.
I have checked for malware, viruses, etc. My only clue this is going to happen is the hard disk spins up and I hear the fan, then I hear it unmount the drive. Of course, after unmounted there are other issues which I have ruled out as the cause of the problem.
Basically, I am experiencing a lack of swap space after my hard drive unmounts.
Any suggestions, are welcome! I would really like to know if this is a known windows issue. I should not have to disable intel's processor software. I paid for the features of the i7 and would like to utilise the processor.

Hi,
According to your descriptioin, I don't think this is system problem, it should be Intel driver problem. It would be contact Intel to confirm this issue whether this is their driver problem.
Roger Lu
TechNet Community Support

Dual Boot Windows 7 with preinstalled Windows 8 on GPT-formatted hard disk and UEFI BIOS.

Question for Jordon Wees,
Hi,
You wrote: I can successfully install both operating
systems in UEFI mode, with Windows 7 on the first partition and Windows 8 on
the second partition. <o:p></o:p>
But I couldn´t!<o:p></o:p>
Could you please provide me how to install Windows 7
64 bit on a PC that already has Windows 8 64 bit preinstalled?<o:p></o:p>
I have also a GPT-formatted hard disk with UEFI BIOS
but I get the error message that windows can´t install Windows 7 on the disk
because it is a GPT-formatted hard disk.<o:p></o:p>
I don´t understand this because it is a GPT-formatted
hard disk with Windows 8 on it!<o:p></o:p>
I can´t change the hard disk to MBR format because I
will lose Widows 8 and all other partitions.<o:p></o:p>
In the BIOS for the storage dives Boot´ option I
selected the: only UEFI, I could also select the option ´first UEFI´ but it doesn´t
change the failure of installing Windows 7.<o:p></o:p>
Thanks, Sia

If I am reading your issue correctly. Windows 8 came pre-installed on a computer with a hard disk setup as a GPT with UEFI configured.
If this is the case then the outcome you are experiencing is correct.
Windows 7 does not inherently have the ability to install into a GPT disk from the base installation.
The Windows 7 DVD is designed to install using BIOS mode.
Also note that Windows 7 x86 does not support UEFI mode.
These two articles below may help you.
http://technet.microsoft.com/en-us/library/dd744321(WS.10).aspx
http://blogs.technet.com/b/askcore/archive/2011/05/31/installing-windows-7-on-uefi-based-computer.aspx
Thanks
Sean
MCTS: Windows 7
MCITP: Windows 7 Enterprise Administration
MCSA: Windows 7

Trying to install/format an INTERNAL hard drive using Disk Utility gives me "Error: -69760: Unable to write to the last block of the device". Is that a hardware problem and what could be done about it?

*** PLEASE NOTE*** - This is a query about an INTERNAL HDD not an external one. Thanks.
My Mac is a late 2009 model and the current hard drive recently failed. So I bought a new one, exactly the same, albeit 750gb instead of 500gb. The HDD is a Seagate Momentus 7200. Before the my current drive failed I made a time machine back up to an external USB HDD. I've inserted the HDD into the bottom of my Mac, plugged in the USB and started my machine pressing the 'Option' ([ALT]) key. I go into Disk Utility to try and format the new HDD by creating a new partition but I keep getting the messages,
"Error: -69760: Unable to write to the last block of the device"
or
"POSIX: could not allocate memory"
This is actaully the third HDD I've tried. The first was another Seagate Momentus 7200 500gb, but this time it was a newer model (model number ended in 423AS instead of 420AS - the new one I am trying ends with 420AS, which is the same as the current HDD). I then tried a Western Digital drive but that one didn't even show up in DU. Forums and tech support are suggesting it's faults with the HDDs but surely not three in a row?
Could this be an issue with another part of my Mac?
Is there anything else I can do to format the HDD, have I missed a crucial step?

Did you ever get a resolution to this issue?
I am having that exact error with a new 512GB SSD from Crucial, in a 15" MBP mid-2010.
I really wonder now if the stupid SATA cable could be bad - causing the initial SSD fail. I am replacing it with the EXACT same drive, and getting that "last block" error when i partition in the GUI or from command-line.
thanks!

How do i burn idvd projects in a dvd format to an external hard disk

I have an iDVD project but it is too big to burn to a dvd (11GB!) so I was wondering if I can save the proejct like a dvd onto my External Hard Disk. This is really urgent and important for a school project.
Thanks in advance.

iDVD does not care about file size (it compresses a movie file by about 4:1 o the standard mpeg2 format), only about length.
A standard DVD will hold up to 120 minutes of video, but this includes titles, transitions etc.
iDVD encoding settings:
http://docs.info.apple.com/article.html?path=iDVD/7.0/en/11417.html
Short version:
Best Performance is for videos of up to 60 minutes
Best Quality is for videos of up to 120 minutes
Professional Quality is also for up to 120 minutes but even higher quality (and takes much longer)
That was for single-layer DVDs. Double these numbers for dual-layer DVDs.
Professional Quality: The Professional Quality option uses advanced two-pass technology to encode your video (The first pass determines which parts of the movie can be given greater compresson without quality loss and which parts can’t. The second pass then encodes those different parts accordingly) , resulting in the best quality of video possible on your burned DVD. You can select this option regardless of your project’s duration (up to 2 hours of video for a single-layer disc and 4 hours for a double-layer disc). Because Professional Quality encoding is time-consuming (requiring about twice as much time to encode a project as the High Quality option, for example) choose it only if you are not concerned about the time taken.
In both cases the maximum length includes titles, transitions and effects etc. Allow about 15 minutes for these.
You can use the amount of video in your project as a rough determination of which method to choose. If your project has an hour or less of video (for a single-layer disc), choose Best Performance. If it has between 1 and 2 hours of video (for a single-layer disc), choose High Quality. If you want the best possible encoding quality for projects that are up to 2 hours (for a single-layer disc), choose Professional Quality. This option takes about twice as long as the High Quality option, so select it only if time is not an issue for you.
Use the Capacity meter in the Project Info window (choose Project > Project Info) to determine how many minutes of video your project contains.
NOTE: With the Best Performance setting, you can turn background encoding off by choosing Advanced > “Encode in Background.” The checkmark is removed to show it’s no longer selected. Turning off background encoding can help performance if your system seems sluggish.
And whilst checking these settings in iDVD Preferences, make sure that the settings for NTSC/PAL and DV/DV Widescreen are also what you want.
http://support.apple.com/kb/HT1502?viewlocale=en_US

Solved: I cannot manage (bring online, initialize, partition, format, or write to) a VHDX hard drive once it has "Enable Virtual Hard Disk Sharing" enabled.

Hello,
Issue:
On a Virtual Machine with a secondary VHDX attached, I cannot manage (bring online, initialize, partition, format, or write to) the VHDX hard drive once it has "Enable Virtual Hard Disk Sharing (VHD Sharing)" enabled.
Questions:
Should I be able to manage (bring online, initialize, partition, format, and write to) a VHDX hard drive once it has VHD Sharing enabled? If I should be able to manage it, what am I missing?
Topography:
One SuperMicro Cluster In a Box (CIB) with 2012 R2 Data Center on each node. Microsoft Failover Cluster installed and working on each node. The Failover Cluster Servers on each host passes all cluster validation tests. Two Hyper-V 2012 R2 Data Center Virtual
Machine (VM) servers, one on each node. 1 common Cluster Shared Volume (CSV) and 1 Generation 2 Scale-Out File Server (SOFS) shared volume both Resilient File System (REFS) formatted. One 5 Gigabit (Gb) Virtual Hard Drive Type X (VHDX) file on the CSV and/or
SOFS. Integrity bit and read only turned off on VHDX file.
Each of the two Hyper-V VMs have one 127Gb VHDX Generation 2 primary hard drive and 1 VHDX secondary hard drive attached, both on SCSI Controller #1.
Background:
If I start VM1 without the VHD Sharing enabled on the secondary hard drive, I can bring the drive online, initialize, partition, format, and write to the drive.
If I enable VHD Sharing, I can no longer modify the drive in Disk Management in any way. With or without VM2 running.
Both VMs and the CSV and SOFS are on the same host cluster server, or not, no difference…
The VHDX is referenced either by the CSV name C:\ClusterStorage\Volume1\TEST1.VHDX
or a Shared Folder name
\\sharedfolder\folder\Test1.VHDX .
If I start VM1 with VHD Sharing disabled and I format the drive, then shut down and enable VHD Sharing, the drive is offline and requests initialization which fails with an "I/O device error", every other attempt to manage the drive fails with
the same "I/O device error", error.
Events:
VDS fails to write boot code on a disk during clean operation. Error code: 8007045D@02070008
Log Name:      System
Source:        Virtual Disk Service
Date:          3/3/2015 11:39:18 AM
Event ID:      10
Task Category: None
Level:         Error
Keywords:      Classic
User:          N/A
Computer:      Server1.Domain.local
Description:
VDS fails to write boot code on a disk during clean operation. Error code: 8007045D@02070008
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
<System>
    <Provider Name="Virtual Disk Service" />
    <EventID Qualifiers="49664">10</EventID>
    <Level>2</Level>
    <Task>0</Task>
    <Keywords>0x80000000000000</Keywords>
    <TimeCreated SystemTime="2015-03-03T19:39:18.000000000Z" />
    <EventRecordID>27318</EventRecordID>
    <Channel>System</Channel>
    <Computer> Server1.Domain.local </Computer>
    <Security />
</System>
<EventData>
    <Data>8007045D@02070008</Data>
</EventData>
</Event>
AND
Log Name:      System
Source:        disk
Date:          3/3/2015 12:16:42 PM
Event ID:      153
Task Category: None
Level:         Warning
Keywords:      Classic
User:          N/A
Computer:      Server1.Domain.local
Description:
The IO operation at logical block address 0x0 for Disk 1 (PDO name: \Device\MPIODisk1) was retried.
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
<System>
    <Provider Name="disk" />
    <EventID Qualifiers="32772">153</EventID>
    <Level>3</Level>
    <Task>0</Task>
    <Keywords>0x80000000000000</Keywords>
    <TimeCreated SystemTime="2015-03-03T20:16:42.017090000Z" />
    <EventRecordID>27333</EventRecordID>
    <Channel>System</Channel>
    <Computer>Server1.Domain.local</Computer>
    <Security />
</System>
<EventData>
    <Data>\Device\Harddisk1\DR1</Data>
    <Data>0x0</Data>
    <Data>1</Data>
    <Data>\Device\MPIODisk1</Data>
    <Binary>0F01040004002C00000000009900048000000000000000000000000000000000000000000000000000020488</Binary>
</EventData>
</Event>
Thanks again for any help,
Robert

Hi All,
I had to buy a Willy Wonka bar and spend a golden ticket to get an answer to this one.
We found that the default LogicalSectorSizeBytes of a VHDX is 512b. It needs to be 4kb.
The Host drive doesn't seem to matter CSV or SOFS. Below is a way to create a VHDX with the correct LogicalSectorSizeBytes.
In Power Shell, type --> New-VHD -Path C:\ClusterStorage\Volume4\Cluster2DataDisks\Cluster2Disk1.vhdx -SizeBytes 200Gb -PhysicalSectorSizeBytes 4kb -LogicalSectorSizeBytes 4kb
Attach the resulting file to your guest cluster servers and set the Enable Virtual Hard Disk Sharing option on both server. You should now be able to bring the drives on-line and initialize them. They will also add to the guest cluster pool.
Change the size, path and file name above to fit your Cluster Servers configuration.
Thank You
Sachin Kumar Support Engineer | Windows Server Setup Team | Microsoft Enterprise Platform for finding the answer to this one.
Hope this helps others.
Robert

Hard disk not detected after formatting bootcamp partition

I am using rEFIt (with OSX, Fedora 13, and Windows7) on my MacBook. I formatted the BootCamp partition (Windows7) using DiskUtility because I wanted to revert back to WindowsXP. After reformatting I rebooted my MacBook but I cannot get to see the rEFIt options. I used the Installation DVD that came with the MacBook, opened DiskUtility and I cannot see my hard disk on the available disks. Need help badly... Thanks!

The tests from the Assistant are not as comprehensive or reliable as the full hard drive test in the BIOS....tap F10 as you power up, go in there and find the hard drive test. Run the long form test and see what is says. It is not unusual for hard drive issues to start as intermittent and gradually get more frequent. If your drive passes the long form test you can fairly safely assume it was a one-time gremlin of some sort, but it is still a real good idea to back up. I like the idea of the online backup services and I will name Carbonite only because it is well known and not as an endorsement. There are several more and an external drive is also a good idea.
You cannot put off a reboot forever; you are going to have to confront the issue at some point.

Can't open disk utility at startup, can't format new hard drive

My hard drive on my 2011 macbook pro recently went out, so I purchased a new one. I plugged it in internally and brought up disk utility in internet recovery, but it didn't recognize the drive. So I tried using an external hard drive reader, but now recovery mode can't be accessed at all, whether I press option or command r after startup, it still gives me the same gray folder with a question mark icon. Is my recovery mode damaged, and is that possible to fix?

You can use an external USB disk/flash drive which has Recovery (or a full OS - requires a 16GB disk space on a USB flash or a JHFS+ partition with the OSX) on it. Boot from that recovery USB drive. if Internet Recovery worked once, the MBP is already capable of repeating it. It requires an Ethernet or WiFi connection. If neither is available, or is spotty, Internet Recovery will not work. Can you try Internet recovery via Ethernet cable, if all your previous attempts have been via WiFi?
If the drive is not recognized when plugged into the internal SATA bus, either a cable is not plugged in properly (the replacement drive never showed up successfully as per the OP even once, or the drive is DoA). It should be tested externally. Pulling the drive out and putting it back is fairly easy in the 2011/2012 MBPs. The cable could have been damaged during the replacement. The non-drive end of SATA/IR Sensor cable on the main logic board could be loose or damaged.
If you have a external cable SATA-to-USB or SATA-to-FW (very unlikely), format the new drive using a different PC/MAC to make sure it is not DoA. What brand/model is this new drive? Is it an SSD? It may require a FW upgrade.
If there is a second MAC available, a Target Disk Mode boot (press T while powering up the mac with the new drive) may allow the second working mac to format the new drive via Disk Utility.

Can I format only one partition on an external hard disk?

I have partitioned my external Hard drive into three different partitions, each of different formats. Two partitions for backing up my macbooks and one to copy to and from my windows PC. I would just like to know if in any way is it possible for me to be able to re-partition one of the partitions, without affecting my Time machine partitions, in case the need be in future.

Yes, provided the partition has sufficient free space.
Open Disk Utility, select the drive's main entry in the list then click on the Partition tab in the main window. Click in the partition you wish to change, then click on the Add [+] button. The partition should divide in half. You can the resize as you need. The blue area you see in each partition represents what is in use. When you have it as you want click on the Apply button.

How can i format my MacBook Pro hard disk and recover my data from time capsule?

Hello,
My MacBook Pro is running slow, more and more. Everything started with the "upgrade" to Lion.
Can I re-format my hard disk and recover from Time Capsule only the data and applications I really need (including Snow Leopard as OS, maybe)?
Thanks

The problem is that it is a Western Digital 3.5 inch internal hard drive housed inside a hard drive caddy. So the only way to connect it to my computer is through a dock.

My Imac won't read an external hard disk. No icon in the finder. It's visible in the disk uitility. NTSF format

Hi!
Every time I connect my hard disk, I get this message:
The hard disk is in NTFS format.
So far I've connected 3 different hard disks, and I always get the same message. I also have a mac laptop and I can see all of them in the finder and read and save stuf in them, too.
I've contacted Apple support and they've told me it's a problem from the hard disk and I should format it into the Exfat Format, and see if it works and the imac can read it.
I don't really want to delete all the stuff I have in the hard disk.
How can I find out if there's a problem with the computer or if it is a problem with the hard disk? Is there an app I can use that might help? Shall I format it into Exfat?
I'd be grateful if anybody can help,
Thanks!!!

Then you haven't removed it.
Any third-party software that doesn't install by drag-and-drop into the Applications folder, and uninstall by drag-and-drop to the Trash, is a system modification.
Whenever you remove system modifications, they must be removed completely, and the only way to do that is to use the uninstallation tool, if any, provided by the developers, or to follow their instructions. If the software has been incompletely removed, you may have to re-download or even reinstall it in order to finish the job.
I never install system modifications myself, and I don't know how to uninstall them. You'll have to do your own research to find that information.
Here are some general guidelines to get you started. Suppose you want to remove something called “BrickMyMac” (a hypothetical example.) First, consult the product's Help menu, if there is one, for instructions. Finding none there, look on the developer's website, say www.brickmymac.com. (That may not be the actual name of the site; if necessary, search the Web for the product name.) If you don’t find anything on the website or in your search, contact the developer. While you're waiting for a response, download BrickMyMac.dmg and open it. There may be an application in there such as “Uninstall BrickMyMac.” If not, open “BrickMyMac.pkg” and look for an Uninstall button.
Back up all data before making any changes.
You will generally have to reboot in order to complete an uninstallation. Until you do that, the uninstallation may have no effect, or unpredictable effects.
If you can’t remove software in any other way, you’ll have to erase and install OS X. Never install any third-party software unless you're sure you know how to uninstall it; otherwise you may create problems that are very hard to solve.
WARNING: Trying to remove complex system modifications by hunting for files by name often will not work and may make the problem worse. The same goes for "utilities" such as "AppCleaner" and the like that purport to remove software.

Dead hard drive-how to format and startup with new disk

I have a 9 month old non-retina MBP. I replaced the HD with an SSD when I bought it. It seems the SSD has stopped working and I need to replace it. Grrr. I do have a Time Capsule backup that I can use, but how do I install the OS on the replacement SSD? After I have the MBP running with the new SSD, I should be able to reinstall everything else from the Time Capsule backup. I have another MBP that I can use for assistance/transferring/formatting if this will be helpful. Will Apple store Genius help me to do this? I would not be surprised that any warranty coverage may have been voided when I installed the SSD. I could use the other MBP to format the new SSD before installing it.

Your computer has got Internet Recovery. Use it to restore your backup.
To start in Internet Recovery, hold Command, Option (Alt) and R keys while your computer is starting. Then, open Disk Utility, choose your hard disk at the top of the sidebar, go to Erase tab and erase the disk using "Mac OS Extended (Journaled)" as format.
Finally, close Disk Utility, plug the external disk with your backup, select the option to restore a Time Machine backup and follow its steps

How to format an external hard disk Mac Os Extended (Journaled)?

hello
I connect an external hard disk (2.5' IDE Western Digital Scorpio Blue, WD2500BEVE) via USB or FireWire to my Mac mini. The Disk Utility tool shows an external disk drive of 128 GB - but the disk has 250 GB. How can I format the external USB/Firewire-harddisk 250 GB "Mac OS Extended (Journaled)"?
I tried also to format the disk on a Windows PC (Windows XP). But I could not find a software to format "Mac OS Extended (Journaled)".
Any hints on this? Thanks in advance for any feedback!

andreasmarx wrote:
As I use theses hard disks in a external hard disk case, I'm asking me whether my hard disk cases do not support more that 128 GB disk capacity. Is that realistic?
It is not only realistic but probably the reason your Mac cannot see more than 128 GB of the capacity of the drives mounted in them. It has nothing to do with the interface between the Mac & case (like Firewire) but instead with the controller in the case that connects the raw ATA drive to that interface. Older ATA standards used a 28 bit LBA (logical block address) scheme to access the disk. For 512 bytes per sector this works out to a maximum of 128 GB of addressable disk capacity. The ATA-6 standard, also called Ultra-ATA/100 or just ATA-100, increased the bits in the address space from 28 to 48, with a disk capacity limit of 2 petabytes.
ATA-6 was introduced in 2001, so any external drive case made before then for ATA drives will be forever limited to 128 G. Even now, some come with a controller that does not support the ATA-6 standard, & essentially none have all the hardware to support its full 48 bits of address capacity. However, since 2 PB (2000 terabyte) drives won't be available anytime soon, all you really need is a case that is ATA-6 or better compliant & supports enough address bits for the largest drive you intend ever to put in it.
Case makers don't usually make this information easily available but many now include a "bullet" spec about the maximum capacity their case supports, typically rounded off to simple numbers like 320 GB, 500 GB, or whatever. If you can't find this info, you can assume that the newer the case the more likely it is to support larger capacity drives, or just buy one with a good return policy & test it yourself with the largest raw drive you own.

I had a problem with the hard disk on a 2010 macbook pro. Replaced the hard disk with an Hitachi 1TB and when I tried to erase and format It fails with input/output error. Any help much appreciated!

I had a problem with the hard disk on a 13" 2010 macbook pro. Replaced the hard disk with an Hitachi 1TB disk but when I tried to erase and format, it fails with input/output error and at other times saying unable to allocate memory. Any help much appreciated!

Zap the PRAM and Reset the SMC, then try again.

Want to format hard drive and start over but do not have original disks

Hey guys I want to format my hard drive however I messed up my mac partition and also I do not have my original install disks so I can not do it either. The only working OS i have is Windows right now. how can I format the drive and instal an OS X. I have leopard 10.5.7

Snow Leopard is just US$29. Or Apple can send you new Install disks for your model for a nominal fee.
Dah•veed

Help reg what formats to be used for my new 4tb mini stack to back up my macbook and 2 external hard disks

Hey Guys,
I need an advice from you experts regarding the different formats to be used to format my New 4 Tb ministack from OWC. I have a Mid 2010 Intel macbook pro with 500gb hard disk using Mountain lion and two external hard disk from Samsung and Iomega 1Tb each. I want to format this ministack into 4 partitions each of 1Tb each.
1) 1 Tb for time machine to back up my macbook pro.
2) 1 Tb of Free space to be used to store extra data using both windows and mac os.
3) 1 Tb for Samsung back up
4) 1 Tb for my Iomega back up
I know that for 1st option i need to format the partition (volume) to Mac os extended (journalled). I need help for others.For the 1 Tb free space, can i use NTFS so that i can use it on my wifes windows laptop and use a third a party application like tuxera NTFS for use on my macbook which i am already using to use my samsung and Iomega Ext HDD.
Also What format is required for these two 1 Tb volumes dedicated for external hard disk backups and how can i back up my external hard disks to these formatted volumes. Do i need to format them to Mac os extended (journalled) as well as i shall be using macbook pro to back up these hard disks.
Which would be the best software to back up these Ext hdd,can i use time machine? or CCC ?
Your help help shall be gretaly appreciated.
Thanks in advance.

Get Disk Warrior that will repair the problems without requiring that you reformat the drive - $99.00 on a bootable CD. Will not work on a FAT formatted drive.
You will need to use Drag and Drop to save your files by copying them from the bad drive to a good one.
To reprep the drive:
Drive Preparation
1. Open Disk Utility in your Utilities folder.
2. After DU loads select your hard drive (this is the entry with the mfgr.'s ID and size) from the left side list. 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. 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 Security 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.

Hard disk format, hard disk format

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