Cannot use disk utility to create the partition of the free space on the external USB drive.

I have a red 3 TB Western Digital drive in a USB hard drive docking station.

The reader is GPT, and I have two volumes on it (a single volume is "Microsoft reserved", another volume is NTFS).

The other part of my drive is 1.5 TB of free space. I want to create a new partition with free space so that I can put backups Time Machine encrypted external hard disk.

I checked free space on the drive with my Windows machine:


DISKPART> list disk

Disk ### Status Size Free Dyn Gpt

-------- ------------- ------- ------- --- --- 

Disk 0 Online 167 GB 20 GB

Disk 1 Online 465 GB 0 B *

Disk 2 Online 2794 GB 1526 GB *

DISKPART> select disk 2

Disk 2 is now the selected disk.

DISKPART> list part

Partition ### Type Size Offset

------------- ---------------- ------- -------

Partition 1 Reserved 128 MB 17 KB

Partition 2 Primary 1267 GB 129 MB 

DISKPART>

DiskPart displays 2 partitions - a 128 MB and the other GB 1267 with 1526 MB of free space.

I took the hard drive of my MacBook Pro running OS X El Capitan 10.11.3 and pulled towards the high disk utility, but for some reason, that it does not resemble the disk utility it is to see the free space, so I can't create a new volume.

Here are a few screenshots:

... of the physical disk in disk utility (notice how it doesn't seem be all unallocated space on the disk to create a new volume):

... of the NTFS volume in disk utility:

... of information for the drive in disk utility:

... of information for the NTFS volume in disk utility:

... of the partitioning settings page. Notice how the sign is grayed out (I can't create another partition):

I'm a new Mac user. My company recently gave me a Mac, so the first thing I want to do is to create a new partition on this external USB drive to put backups Time Machine figures on it.

In the research I did find a way to do it on a mac computer without erasing the drive and starting over. But you can go to your windows computer and partition the free space of disks. Then use the mac to set the free space as mac os extended journaled. Here's what I found. http://www.PCWorld.com/article/2066191/how-to-partition-a-hard-drive.html the only other way would be to copy the file on the external drive, somewhere, so you can delete it and re partition for windows and mac. Then reinstall windows files. I'm not familiar with windows systems.

Tags: Notebooks

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