aacraid/afacli

Michael E Brown michael_e_brown at dell.com
Wed Mar 13 19:44:01 CST 2002


http://lists.us.dell.com/pipermail/linux-poweredge/2002-March/001846.html

Search for: "Drive Rebuild Guide"
--
Michael Brown
Linux Solutions
Dell Computer

On Wed, 13 Mar 2002, Bill Pitz wrote:

> On Wed, Mar 13, 2002 at 02:47:07PM -0600, Michael E Brown <michael_e_brown at dell.com> wrote:
> > Bad disk? If this is still under warranty, you may want to call it in and
> > get a replacement.
>
> On that note, I've got a related (dumb) question that doesn't seem to be
> clearly documented anyplace.
>
> I'm working on a PE2550 with two 73gb drives that are running in mirrored
> (raid 1) mode with the on-board PERC3/Di.  Works great, but I'm in the
> process of writing disaster recovery documentation for the company and
> one of the things that we need to address is the procedure to follow if
> a drive fails.  I know the obvious, and I know what needs to be done, but
> I'm not 100% sure how to accomplish it using the CLI.
>
> Here's how my steps are set up right now:
>
> 1. Determine which disk is bad.
> 2. Power down the disk using the enclosure prepare slot command.
> 3. Remove bad disk, insert good disk.
> 4. Activate the slot.
> 5. Initialize the new (empty) disk.
>
> This is where things are a little fuzzy.  Obviously, I need to get the
> mirror to update from the existing disk to the new disk.  What's the best
> way to achieve this?  The scrub command? (That worried me, because there
> doesn't seem to be any way to specify which disk has the "correct" data
> and which disk doesn't.)  Is there another command to use?  Does the
> controller figure it out by itself?
>
> Thanks,
>
> -Bill
>
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