Re: Thin provisioning & arrays

Keith Owens
2008-11-11T02:09:38Z

On Mon, 10 Nov 2008 20:23:17 -0500,
Black_David@emc.com wrote:
>Dave,
>The thin provisioning chunk size (coming) in the VPD page is a
>possible place to start.

VPD page for which device? Consider a filesystem that is striped
across devices from multiple arrays or even multiple vendors. How is
the filesystem supposed to "align" an unmap command when the underlying
disks all have different alignments?