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System booted with power unplugged to one RAID 0 disk

Posted on 2003-11-27
Medium Priority
Last Modified: 2010-04-03
I have two 80 GB SATA disks in RAID 0 on an MSI K7N2G-ILSR motherboard with Promise FastTrak 376 on-board controller.

After installing a DVD drive my array went "offline". I discovered that the SATA power connector on the second drive was unplugged. It probably happend by accident while the system power was off while installing the DVD drive.

According to the Promise manual, I'm screwed.

Can I just use Delete Array then Define Array and get the array back?

Question by:WhiteRabbit9981
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Expert Comment

ID: 9835414
Just the nature of Raid 0 is that there is NO fault tolerance.
Is the HDD still working? If it is then you might try a recovery on the drive then see if you can reset the array otherwise
"According to the Promise manual, I'm screwed."
It seems that this is the case

Author Comment

ID: 9839149
This is silly, the drives are perfect, but the controller has gone into an unrecoverable state. Is there any information used from the last booted session that is used when the computer boots up again, which when it's lost, breaks some sort of continuity in the RAID management algorithm or primary management structure (FAT as it were)?

Before anybody flames me for using RAID 0 in the first place, maybe you could instead just have a decent laugh, then reccommend a cheap software RAID recovery program, and I'll get a >160 GB disk and let the drive images bake in the oven over the weekend.

But before I touch the drives...

Does anyone know enough about the Promise FastTrak 376 RAID controller to say whether or not I can get the controller to stop it's hissy fit and just get back to business? If I remove any other computer component, then put it back, no OS would disown it.

This is really stupid. Both drives are perfect, and it's the controller that has modified it's own state, and can't get out of it. It's like the controller thinks he's drowning, but really he's just in a foot of water - if he would just stand up... Or like a baby with two toys: he's happy, but if you take one away, he'll cry - and giving it back doesn't make him happy.

[With my head lowered in shame, I turn to my computer shopping sites, in search of a big hard disk... and some smart software]

: )

Accepted Solution

philby11 earned 50 total points
ID: 9839907
I have never used this before but it seems to think it can do what your asking.
With File Scavenger™, files can be recovered from reformatted or corrupted volumes.  This is even possible when a volume has been deleted and its original position and size are unknown.  Using the unique "Defunct Volume Search" mode, File Scavenger™ can scan an entire physical hard drive to look for traces of defunct volumes.  Also in this mode, files can be recovered from broken striped volumes (i.e. RAID 0 or RAID 5) or spanned volumes (volume sets) provided that the component physical drives are still accessible individually.  (For striped sets with parity or RAID 5, one drive can be missing.)
good luck

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