RAID 0 - CONTROLLER Failed (drives OK) ?!?!

Macintosh / G5 1.8 powerpc
July 6, 2011 at 11:42:41
Specs: XP , Intel
Folks,

Am helping someone out who had, unfortunately, a RAID 0 setup.

The motherboard failed...which had an integrated RAID controller.

When the drives where originally set up, the person did it as RAID 0.

Since then, the person has replaced the motherboard (exact same model)...but this time with a SINGLE drive. It's already up and running.

QUESTIONSs: Is it possible to access the data without using the EXACT SAME controller ...which does not existing anymore?

If so, does it have to be with the EXACT SAME MAKE/MODEL of controller....in this case, one that is embedded on a mobo...meaning an entire new mobo would be required.

If not...would ANY controller do that can be configured as RAID 0?

OR.....(and I highly doubt this, but) Is there any way to access the data just by slaving these on a standard controller (one drive at a time)?

Thanks VERY much for any advice.

> PLEASE HELP OTHERS - Report back what did/didn't work for those referencing this thread.<


See More: RAID 0 - CONTROLLER Failed (drives OK) ?!?!

Report •


#1
July 6, 2011 at 13:10:10
It may be possible. You'd have to know more about the array and see other posts or help in owners manual for ways to recover data.

I would try some live linux cd's just to see if one could access the data but don't mount it write.

Why didn't they return it to the way it was?

1/3 of highway deaths are caused by drunks. The rest are by people who can't drive any better than a drunk.


Report •

#2
July 6, 2011 at 14:13:17
(since Raid 0 is so risky...as in what happened here...they decided to go with something more standard....imo, a plain raid 0 should never be used unless there is a very, very specific reason to do so).

Do you mean a Linux boot disk may be able to access it when slaved on another PC?

I've used a Linux boot a few times. Is there an option to access a disk as read-only?

Also...getting another raid controller IS an option...if that is the better known way to deal with this situation. If that is the standard method for this problem....does it have to be the exact SAME controller...or the exact same make/model?

Thanks

> PLEASE HELP OTHERS - Report back what did/didn't work for those referencing this thread.<


Report •

#3
July 6, 2011 at 15:31:45
If you have the same exact motherboard then you should have the RAID 0 capability.

Do you still have the 2 RAID 0 drives in an untouched condition?

Are you saying the RAID controller was an add in card and not on board the motherboard?

If you connect the two RAID 0 hard drives to the same to ports as they were connected before you may be able to boot to it directly. You may need to move the new hard drive to a different port.

If the RAID 0 array can't boot then you may be able to repair it using testdisk. Get testdisk at the link below. Be sure to read all tutorials thoroughly.

If you are successful you can then copy over your personal files and then format the 2 RAID drives for other uses including a RAID array.

http://www.cgsecurity.org/wiki/Test...


Report •

Related Solutions

#4
July 6, 2011 at 17:44:24
In almost all live linux cd's they would usually mount the drive read only. Some like OpenSuse don't mount at all by default. In most cases you'd have to mount ntfs drives as read write by extra steps or clicks.

Problem with live linux is your raid arrays. Many cheap motherboards don't have real hardware raid. They use a faux or fake raid. Linux tends to see right though that deal and in some distro's reads each disk. I doubt you have a real hardware based raid.

1/3 of highway deaths are caused by drunks. The rest are by people who can't drive any better than a drunk.


Report •

#5
July 6, 2011 at 20:01:25
I hope this is the case (about the faux raid).

If so and the data is accessible via a Linux boot....would the raid 0 matter be an issue?

With raid 0, files are divided across 2 drives, instead of being mirrored...so, from what I understand...this complicates things when attempting to recover files from the drives in an event such as this.

I did slave one of the drives on an XP. It could not see files...but it did see partitions (via the Disk Manager). Also, XP interpreted it as not being formatted.

Thanks

> PLEASE HELP OTHERS - Report back what did/didn't work for those referencing this thread.<


Report •

#6
July 7, 2011 at 12:45:36
Kind of just depends on how they made the cd. Knoppix may see it one way while OpenIndianna may see it differently while OpenSuse sees it another. Try a few.

1/3 of highway deaths are caused by drunks. The rest are by people who can't drive any better than a drunk.


Report •

#7
July 7, 2011 at 13:41:18
Thanks.

Have also come across a possible solution using Knoppix.

Will post back afterwards for anyone else interested.

> PLEASE HELP OTHERS - Report back what did/didn't work for those referencing this thread.<


Report •

#8
July 10, 2011 at 17:25:14
SOLUTION

This worked for me (again, with RAID 0 drives from a PC which had a failed controller):

Credit: A big thanks to AL CUCINA from the Seagate forums (reference provided below)

1. Download the most current version of a Knoppix ISO ( I used 6.4.3 ) from
http://www.kernel.org/pub/dist/knop...

2.Create a cd from that ISO

3. Mount the 2 drives in a PC (do use a USB Adapters...connect them to the mobo controller)

4. Disconnect PCs primary drive(s)....(in other words...ONLY have those 2 RAID 0 drives in the PC)

5. Boot from the Knoppix CD that you created from the downloaded iso

6. A text list may appear...if so...fish around in the "graphical" option and select something like "desktop X"...or X something....this will start the Windows-like desktop.

7. Find the "MyComputer" item.... (I think you right-click just anywhere on the desktop and it's in that pop-up menu).

8. From there, any available volumes should be listed.

-------------------------------------------------------------
9. HERE'S WHERE THINGS MAY VARY:

For me.....Amazingly.....this OS automatically formed the raid volume from those 2 drives. It simply displayed ONE volume in the MyComputer window (not 2 different drives)....when I clicked it...there were all the files.....Fantastic (whew) !

However...you may see something different. Other info I referenced described a longer process of having to specify each drive, then having to type a series of Linux commands to recreate the volume.
---------------------------------------------------------------

I'm not sure why things went so smoothly for me. It may have to do with using a newer version Knoppix....or the fact that I ONLY had the 2 drives Raid 0 drives mounted (I disconnected all other hard drives). So.....I would suggest NOT having any other hard drives installed....the Knoppix CD provides the OS.

Anyway....this went MUCH better than I expected. I have not used Linux that much...but it has gotten me out of some pinches in the past. However, I'm really impressed with it after this.

OTHER REFERENCE:

This post from the Seagate forum was the Key for me. It contains the longer process mentioned above, which others may need:

NOTE: Scroll down to a reply by AL CUCINA (about half way down the page)

http://forums.seagate.com/t5/Maxtor...

> PLEASE HELP OTHERS - Report back what did/didn't work for those referencing this thread.<


Report •

#9
July 18, 2011 at 23:11:14
*CORRECTION*

Step 3

Should read: 3. Mount the 2 drives in a PC (do NOT use a USB Adapter...connect them to the mobo controller)

> PLEASE HELP OTHERS - Report back what did/didn't work for those referencing this thread.<


Report •


Ask Question