Re: migrating from RAID5 to RAID10

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Hi Bill,

On Wed, Jun 16, 2010 at 11:54:06AM -0400, Bill Davidsen wrote:
> If it were me, I would leave the raid up, install the new drive, and
> just copy the data to it. That way you have error tolerance on the
> original data, while your method doesn't. After doing that and reading
> the entire new drive to be sure it's valid, configure the two original
> drives as a degraded three drive raid10. After that's done AND TESTED
> to see that the data are still all valid, then you add the new drive
> to the raid10 and get full operation.

Thanks for the thorough evaluation and thoughtful advice! Much
appreciated.  I agree it makes a lot more sense and I will follow your
suggested procedure (when I get to purchase the extra drive ;-) )

> Actually, if it were me I'd have a backup, too. And be damn sure to
> run on a UPS.

Great points. I will use a remote backup. I should get a UPS, really...
that'll be a good incentive to stop procrastinating this ;-)

Thanks again.

Gilad
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