16 TB RAID 5 Array No Longer Recognized

[Sugam]

RAID: Standalone Hardware Raid Enclosure
http://www.sansdigital.com/towerraid-/tr5utplusb.html

Raid Level: 5

Drives : 5x Western Digital RE WD3000FYYZ 3TB

Operating System : Windows 7 Pro
Memory : 16 gb 1600mhz
Processor : 3.3 ghz AMD 1100T
Motherboard : Crosshair IV Extreme
GPU : MSI Radeon HD 7970 Lightning Edition
PSU : 1200 Watt Corsair AX1200i 80plus platinum

GPT Type

Symptoms:
After a circuit breaker trip, Windows 7 freezes when attempting to recognize the drive when it is attached.
It locks up until I unplug or power off the drive. Prior to sudden power loss drive was accessible.
When I unplug or power off drive Windows says drive is not formatted

Environment:
No UPS
Drive is connected to a surge protector and a GFI outlet
When power outage occurs GFI outlet will trip disabling power to outlet until reset by hand
(This prevents sudden surges when power is restored)
Drive temp are normal 30c

Trouble shooting steps:
Windows SFC - No change Problem exists
Complete OS reformat - No change Problem exists
BIOS Reset - No change Problem exists
Tried connecting with USB 3 / USB 3 / ESATA - No change Problem exists
Boot to Windows 7 PRO DVD - DVD also freezes when attempting to access drive
CHKDSK /f from Windows 7 PRO boot DVD - Reports drive as RAW
Windows 8.1 PE DVD - Can access drive and files No problem
Terabyte Unlimited Image for Lunix - Can access drive and files No problem
CHKDSK /f using Windows 8.1 PE DVD - NO ERRORS FOUND
Acronis Disk Director 11 - Recognizes drive No problem
Other USB devices work
Other ESATA / SATA devices work
Windows 10 PRO Install DVD Recognizes Drive no problem
CHKDSK /f from windows 10 Pro install DVD NO ERRORS FOUND
Lights on RAID do not indicate any abnormal condition (Array is not rebuilding)
I've tried giving it the finger and I've tried calling it obscene language
Both verbal and gestural persuasions have proven ineffective

Thank you for taking your time to look at this and for any advice that anyone could provide is greatly appreciated
I am attempting to fix this without performing a backup / reformat

[northwind]

The problem is this:

I am attempting to fix this without performing a backup / reformat

Usually a fix in these cases is not possible.
You do not need the data that is inside the RAID array?
If you do, then I think what you're hoping for/trying to do will end up with a disaster.

You need to remove the drives from the array, image them using some non-windows utility (like ddrescue) and then rebuild the RAID using the images you've made.

If you don't need the data, then I would suggest you check each drive of the array for problems, and then use them in a different RAID box.

[Dmitri]

RAID: Standalone Hardware Raid Enclosure
...
After a circuit breaker trip, Windows 7 freezes when attempting to recognize the drive when it is attached...

Trouble shooting steps:
Windows SFC - No change Problem exists
Complete OS reformat - No change Problem exists
BIOS Reset - No change Problem exists
...
CHKDSK /f from Windows 7 PRO boot DVD - Reports drive as RAW
...
Terabyte Unlimited Image for Lunix - Can access drive and files No problem
CHKDSK /f using Windows 8.1 PE DVD - NO ERRORS FOUND
...
I've tried giving it the finger and I've tried calling it obscene language

First of all, how many individual drives are undetectable or checkdisked?

Secondly, what do you mean by "fix"? You're looking to recover the data or just want to put the array back to work? If that's the former, then you'll need extra storage, at least to store extracted data after reassembly.

Also if you need the data, please do not use checkdisk or perform a rebuild. Checkdisk is likely to shred the data and since you've lost at least one drive, you're out of redundancy margin and any mistake will be fatal (finger-giving is OK, though).

Should you need an assistance with recovery, I'll be happy to help remotely.

[veedar]

Possibly something was damaged/corrupted when the power went out. Give Testdisk a try. It's designed to fix problems like this. With luck it could be a simple fix.

[fzabkar]

AIUI, the OP has not disassembled the RAID. The data are still accessible via Win 8.1 and Linux, but not via Win 7. It may be that Win 7 is hitting bad sectors while the other OS-es are not.