Disk Management can't see spanned drives

July 1, 2013 at 22:46:28
Specs: Windows 7
I have a Sans Digital MobileSTOR MS4UT+ enclosure with four 2 TB hard drives. I want to format them as a spanned volume, and have set the device accordingly. It is connected to the eSATA port on my Dell XPS 8300. The BIOS recognizes all 8 TB, as does the Intel Rapid Storage Technology application (well, the Intel app says 7,452 GB). However, Windows Disk Management only sees a single disk with 1307.75 GB (about 1.2 TB). In the Device Manager, I see four generic disk drives and also a drive called "H/W RAID0 (Spanning)". How do I get access to the capacity of all four drives? Thanks!

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July 3, 2013 at 06:12:43
Post all the information that is listed in Disk Management.

What is your goal as far as this array is concerned?

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July 3, 2013 at 20:12:12
That's pretty much it. Disk Management sees 1307.75 GB of unallocated space. When I right click, the only option is to make a new simple volume. The option to make a spanned volume from within Windows might not be appropriate since the enclosure, as I understand it, is already handling the disk spanning. My goal is simply to treat the entire device as an 8TB volume. No need for redundancy or speed. (speaking of redundancy, please ignore the near duplicate post - i thought i had deleted this one)

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July 4, 2013 at 14:08:12
Your other post about this enclosure indicates you have firewire. If so, you posted the wrong model number for the enclosure. There is a model that supports USB, eSATA & firewire.

Did you happen to format the drives while connected to the Mac?

According to the installation guide, they list two types of RAID 0. I am assumming the one you are trying to use is the spanning.

Are you following these instructions: 4) Mode - RAID mode button needs to be pressed and held for 3 secs to switch the device RAID mode. Confirmation button is located at on the back of the unit. (This design will prevent accidental execution of this feature). 6) RAID 0 - Spanning mode.


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July 6, 2013 at 09:01:31
You're right, it is the CT model, not the UT.

I managed to format the spanned drive as an NTFS volume by using a third party utility. Now it works in Windows on the eSATA port with no problems. I'll try to see if the old Mac can mount it, which would be a plus even if it's read-only.

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July 6, 2013 at 10:48:19
Good to hear you got it working.

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