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removing a raid set upFollow

#1 Jul 07 2010 at 5:33 AM Rating: Good
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I have working on removing a Raid set on my DAW for a little wile now with out a lot of success. The PC I am working on is a part of my home recording setup and I think the stare is effecting my recording now.

There are 2 internal hard drives no longer in a raid set up. I get a error message on boot and in windows saying my raid is damaged. Both hard drives are working and accessable. When I check the raid manager it shows 1 normal drive and 1 drive missing and then the missing drive shows again in a non raid list.

On boot up there is a option for removing the raid with a whipe of the hard drive. This is not a option as I think the drive that is in this limbo state is the primary drive with my operating system & recording software on it.

Im open to suggestions on how to proceed.
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#2 Jul 07 2010 at 7:13 AM Rating: Good
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It depends on the type of RAID you set up in the first place.

http://en.wikipedia.org/wiki/RAID

If you set it up as RAID 0 then you're pretty much boned.

1 failure in a RAID 0 set-up messes the whole thing up.

Look at it like this, you have a file stored in a RAID 0 set-up. Raid 0 basically sets the information in a way that increases performance/bandwidth. A "piece" of that information is stored on one drive and another piece is stored on the other drive. How RAID 0 sets-up drives is that it sees two drives as one. Removing one drive means there is now a disconnect, a blank where data used to be. Data isn't necessarily stored in a linear fashion in RAID 0, it is stored in a fashion that makes it the fastest to access. Think of it like a multi-part .rar file. You have one part on one drive and another part on another drive. Remove one of those drives and you can't reassemble the file. RAID 0 uses a similar logic in order to take advantage of the read heads on 2+ drives (to improve read/write performance) instead of one.
#3 Jul 08 2010 at 12:18 PM Rating: Decent
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If you set it up as a mirror (RAID1) its pretty simple, you more or less reset the disks to non-member raid, select the disk as a boot device and possibly run a quick boot repair with your OS installation media.

For RAID5 (3+ disks) it is a matter of backing up to something (possibly another non-raid hard disk), breaking the RAID array and then recreating.

it is good practice to use specifically RAID validated drives when building a array whenever possible.
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