Want to protect your cyber security and still get fast solutions? Ask a secure question today.Go Premium

x
  • Status: Solved
  • Priority: Medium
  • Security: Public
  • Views: 1622
  • Last Modified:

RAID partition showing as unallocated

I have a media center PC running Windows 7 Ultimate with the following hardware:
MB: Asus P6T Deluxe V1
RAID controller: Promise FastTrak TX4650
Drives: (3) ST31500341AS
I have this setup as a RAID 5 with 3 TB usable. I have been using this drive with Windows 7 for about two months now. All of a sudden the drive shows as unallocated space. The RAID shows as functional.

This is the SECOND time I have had this happen with this hardware. The first time I was running Windows XP pro.

I checked firmware on the MB and RAID controller several times when I loaded Windows 7.

Any advice?

DM
0
wcoil
Asked:
wcoil
  • 3
  • 2
  • 2
  • +1
1 Solution
 
DavidPresidentCommented:
The largest partition that the O/S supports for C:\ is approx 2.1 TB.   The RAID controller couldn't care less about this constraint, but why it lets it run for 2 months is beyond me.   You need to break up the RAID into 2 partitions with the boot partition being under 2TB.  

0
 
wcoilAuthor Commented:
Thanks for the input. I forgot to mention that this is not the system partition. I have the OS on a stand alone drive.
0
Independent Software Vendors: We Want Your Opinion

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

 
noxchoGlobal Support CoordinatorCommented:
Can you take a screen shot of Windows Disk Management and post it here?
We would give more detailed answer having that data.
0
 
wcoilAuthor Commented:
Here is a screen shot of disk mgt.
disk-mgt.JPG
0
 
CallandorCommented:
If this has happened more than once, I suspect the RAID controller is failing and should be replaced.  Losing array configuration info is not something I would risk for something that big.
0
 
wcoilAuthor Commented:
I have a new controller ordered. Is there any hope that the array can be recovered?
0
 
DavidPresidentCommented:
Well, if RAID controller has problem like bad memory chip that is always writing 1s at a certain offset instead of what it is supposed to do ... then, of course, you have data loss that is irrecoverable (but limited).

I would contact Promise and get "best practices" from them before plugging it in. They may tell you to upgrade or downgrade controller firmware.
As far as recovery, it really depends on what damage has been done.  Runtime.org has a "raid reconstructor" program, which recovers raid by figuring out via brute force the arrangement, and then reconstructing the logical drive and writing to a scratch disk. Price is around $100

0

Featured Post

Concerto Cloud for Software Providers & ISVs

Can Concerto Cloud Services help you focus on evolving your application offerings, while delivering the best cloud experience to your customers? From DevOps to revenue models and customer support, the answer is yes!

Learn how Concerto can help you.

  • 3
  • 2
  • 2
  • +1
Tackle projects and never again get stuck behind a technical roadblock.
Join Now