ZFS - hot spares : automatic or not?

[Miroslav Lachman]

Dan Langille wrote:
> On 1/4/2011 11:52 AM, John Hawkes-Reed wrote:

[...]

>> As far as our testing could discover, it's not automatic.
>>
>> I wrote some Ugly Perl that's called by devd when it spots a drive-fail
>> event, which seemed to DTRT when simulating a failure by pulling a drive.
>
> Without such a script, what is the value in creating hot spares?

IMHO hot spares are totally useless in the current state (in FreeBSD).

I think there should be some strong warning somewhere (in man zpool?). 
Some users can be misleaded otherwise.

Miroslav Lachman