On Thu, Jun 29, 2006 at 10:01:15AM +0200, Robert Milkowski
wrote:> Hello przemolicc,
>
> Thursday, June 29, 2006, 8:01:26 AM, you wrote:
>
> ppf> On Wed, Jun 28, 2006 at 03:30:28PM +0200, Robert Milkowski wrote:
> >> ppf> What I wanted to point out is the Al''s example:
he wrote about damaged data. Data
> >> ppf> were damaged by firmware _not_ disk surface ! In such case
ZFS doesn''t help. ZFS can
> >> ppf> detect (and repair) errors on disk surface, bad cables,
etc. But cannot detect and repair
> >> ppf> errors in its (ZFS) code.
> >>
> >> Not in its code but definitely in a firmware code in a controller.
>
> ppf> As Jeff pointed out: if you mirror two different storage arrays.
>
> Not only I belive. There are some classes of problems that even in one
> array ZFS could help for fw problems (with many controllers in
> active-active config like Symetrix).
Any real example ?
przemol
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