Windows 7 Forums
Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.


Windows 7: How to rebuild RAID 5 within W7


02 Apr 2011   #1

Windows 7 Professional x64
 
 
How to rebuild RAID 5 within W7

A few days after initial installation, I had a single drive error with my RAID 5 config. I am running three WD 500GB HDs in a RAID 5, with no other internal drives. I verified the questionable drive with slow scans. I used my Intel BIOS to add the drive back into my RAID. So far everything looked great.

But, my BIOS shows all three drives in a good RAID 5 with a status of "Rebuild." There is also a comment on the BIOS screen that "RAID 5 will be rebuilt within the operating system." I looked in Windows 7 for rebuild opportunities, but I did not finding any. So I assumed that the rebuild would be an automatic/background rebuild. I have had my system on for 1 week with no joy. BIOS status still shows "rebuild."

My question is: Am I OK? The Computer Management shows a single healthy partition at full allocation (1,031GB, with "no" Fault Tolerance)? How do you rebuild a RAID 5 with Windows 7?


My System SpecsSystem Spec
.

02 Apr 2011   #2

Microsoft Community Contributor Award Recipient

Windows 7 Ult. x64 Windows 8.1 x64
 
 

Hi,

I believe there is an option to do this using the DISKPART command (run that from an elevated CMD window). I have never used it, so unfortunately I can't help with the details of the command.

How to rebuild RAID 5 within W7-capture.png

Let us know how you get on with it.

Regards,
Golden


My System SpecsSystem Spec
24 Jun 2011   #3

Windows 7 Professional x64
 
 

No joy... The "Repair" command is not active in Windows 7 DISKPART. "The command you selected is not available with this version of Windows."

It's a little hard to believe that MS has not figured out how to manage RAIDs yet. Time to move back to LINUX... This time for good.
My System SpecsSystem Spec
.


30 Jul 2011   #4

Windows 7 Professional x64
 
 

The fix is in!!! I stumbled on this before giving up:
1. After replacing the bad drive, complete a complete disc scan. This will not show any improvement, but must be done before the next step.
2. Do a full defragmentation for the RAID 5 volume. No short-cuts, it must be a full defrag. This will take a long time, do not stop it. Mine took 44 hours. But, it now works great.

I know this is a big step; doing a defrag on an already damaged RAID 5 takes a lot of faith. If it goes wrong all hope is lost. But mine went fine and everything recovered nicely, all programs and files...

You would think that MS would make this common knowledge...
My System SpecsSystem Spec
26 Jul 2014   #5

Windows 7 Premium 32
 
 
Joys Rextrons

I had the same problem as you, one of my RAID 5 drives check out. Simple enough to replace the drive but then stuck with the rebuild status. My system was still running, but very slow. Funny how MS Windows 7 will build a RAID 5 drive automatically but can't rebuild it. When I saw yours took 44 hrs to defrag/rebuild I contacted MS help to see if there was a better solution. NOT! Considered starting over while I was fretting over "what good is a RAID drive if you can't rebuild it." Glad I decided to defrag. Mine only took 24 hours (12 passes). Started out very slow. Wasn't sure it was working. Took 2 hours to get to 1% of the first pass, then about 8 hours on pass 9. When it completed I restarted and everything checked out and speed back to normal.
My System SpecsSystem Spec
Reply

 How to rebuild RAID 5 within W7




Thread Tools



Similar help and support threads for2: How to rebuild RAID 5 within W7
Thread Forum
Win 7 raid 0 setup / missing raid controller driver Drivers
Solved RAID 5 switched from single storage to raid 5, lost drive letter General Discussion
A Rebuild Gone Bad BSOD Help and Support
Data recovery on RAID auto rebuild on wrong HDD Hardware & Devices
Windows 7 System Image - Restore Non-RAID to RAID 0+1 Backup and Restore
Can't rebuild BCD Hardware & Devices
rebuild of OEM/HP Chillout Room

Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd

All times are GMT -5. The time now is 12:44 PM.
Twitter Facebook Google+



Windows 7 Forums

Seven Forums Android App Seven Forums IOS App
  

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33