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Rsheldon62
15 pts.
Q:
Can RAID 0 volume be deleted and re-added with no data loss?
RAID configuration, RAID 0, RAID, RAID controllers, LSI Integrated RAID controller, Dell Precision 690 Workstation

I have a Dell Precision 690 Workstation
with an LSI Integrated RAID controller.

I have a 2-disk RAID 0 (what LSI refers to as an
IS or Integrated Striping) volume.

Recently the motherboard was replaced (and the RAID
controller is integrated onto the motherboard).

Ever since the motherboard replacement, I get the
following error at boot time:

Dell SAS 5 Host Bus Adapter BIOS
MPTBIOS-6.12.02.00 (2006.12.22)
Copyright 2000-2006 LSI Logic Corp.

Integrated RAID exception detected:
Volume (00:130) is currently in state INACTIVE/OPTIMAL
Enter the SAS Configuration Utility to Investigate!

I can temporarily resolve this problem by activating
the volume in the RAID configuration utility:

select SAS1068
RAID properties
Manage Virtual Disk
Activate Array
Y

But if the power is disconnected, then the same error recurs
on the next boot.

I am thinking that if I delete the volume and re-add it, then
the problem will go away, but I'm afraid I might lose all my
data if I do that. Does anyone know if that's true?

Any help appreciated.

Thanks,

Roger
ASKED: Jan 7 2009  3:44 PM GMT
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Mrdenny
50690 pts.
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Most RAID controllers will wipe the data when you recreate the volume.

In theory you can delete the array and if it is recreated with the disks in the same order the logical volume will remain intact. I would NOT try this without backing up the data on the array before hand. You will probably loose all the data on the array when you delete the array.
Last Answered: Jan 7 2009  8:45 PM GMT by Mrdenny   50690 pts.
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Rsheldon62   15 pts.  |   Jan 13 2009  3:45PM GMT

I made a clone of my RAID 0 using knoppix then I went ahead and deleted the array. Sure enough, that lost all the data.

Unfortunately, even after recreating the array, the “INACTIVE/OPTIMAL” RAID error continued to occur.

Fortunately my system is under warranty. Dell replaced the motherboard and now the RAID error is gone.

Roger

 

Connollyg   150 pts.  |   Jan 15 2009  10:26PM GMT

Roger,
So if your data is that important why are you keeping it on a RAID-0 volume?
Get bigger disks and use RAID-1

G