From: Mike N. 

On Mon, 18 Dec 2006 18:57:18 -0500, mike  wrote:

>ZFS loves cheap disks.
>
>But cheap disks can fail, so ZFS provides disk scrubbing. Like ECC
>memory scrubbing, the idea is to read all data to detect latent errors
>while they're still correctable.

   Some of this sounds like an on-paper design - murphy says that the
failure rate is higher and different than the design expects to handle.

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