On Apr 18, 2010, at 10:48 AM, Miles Nordin wrote:

>>>>>> "re" == Richard Elling <richard.ell...@gmail.com> writes:
> 
>>> A failed unmirrored log device would be the
>>> permanent death of the pool.
> 
>    re> It has also been shown that such pools are recoverable, albeit
>    re> with tedious, manual procedures required.
> 
> for the 100th time, No, they're not, not if you lose zpool.cache also.

It is disingenuous to complain about multiple failures in a system
which has so many single points of failure. Also, a well managed
system will not lose zpool.cache or any other file.
 -- richard

ZFS storage and performance consulting at http://www.RichardElling.com
ZFS training on deduplication, NexentaStor, and NAS performance
Las Vegas, April 29-30, 2010 http://nexenta-vegas.eventbrite.com 





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