On Dienstag, 17. Januar 2012 Stan Hoeppner wrote: > So to be clear, your issue with the above isn't with my partition > alignment math WRT the OP's P2000 array, but is with using XFS stripe > alignment in general, correct? Yes. I just wanted to document this as people often expand RAIDs and forget to apply the changes to stripe width. > There is one really simple way around this issue you describe: don't > add drives to an existing array. Simply create another array with > new disks, create a new aligned XFS on the array, and mount the > filesystem in an appropriate location. There is no 11th Commandment > stating one must have a single massive XFS atop all of one's disks. > ;) > > There is little to no application software today that can't be > configured to store its data files across multiple directories. So > there's no need to box oneself into the corner you describe above. It's a management burden to do that. I've learned that systems usually are strictly structured in their configuration, so it's often better to extend a RAID and to keep the config, as this is cheaper in the end. At least for the salaries of good admins here in Europe ;-) -- mit freundlichen Grüssen, Michael Monnerie, Ing. BSc it-management Internet Services: Protéger http://proteger.at [gesprochen: Prot-e-schee] Tel: +43 660 / 415 6531
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