[OpenIndiana-discuss] Three specific N54L microserver related questions. Sort of Re: low low end server...

[Udo Grabowski (IMK)]

On 18/02/2014 12:27, Hans J. Albertsson wrote:
> 1. Is it really worthwhile to mirror an SSD-based ZIL & L2ARC cache, if
> the SSD has proper power loss protection??

SSD logs no longer need to be mirrors, in case of a loss you
can now simply delete them. But if you loose the SSD when the
server panics or reboots, you can loose some TXGs, so if you
want absolute data consistency, a mirror is still a good idea.

With the old OSOL 2009.06, you could not import filesystems with
logs that were broken, so a mirror was mandatory for a log device.
-- 
Dr.Udo Grabowski    Inst.f.Meteorology a.Climate Research IMK-ASF-SAT
www.imk-asf.kit.edu/english/sat.php
KIT - Karlsruhe Institute of Technology            http://www.kit.edu
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