gmirror Cannot add disk ad5 to gm0 (error=22)

[Miroslav Lachman]

R. B. Riddick wrote:
[...]
> I personally never had such problems with gmirror, so that I would guess, that
> u still have ill hardware... Maybe the temperature is too high? Do u have
> enough fans? Did u measure the temperature after some hours of heavy use (I
> think, smartctl -a show the temperature somewhere...)?

ASUS RS120-E3 is barebone 1U rackmount with 8 (or 10?) fans, temperature 
is monitored every 5 minutes by smartctl invoked from MRTG and displayed 
in graphs. Disk drives temperature is under 40°C with heavy loaded system.

Miroslav Lachman