ZFS & Dedup & SSD.

[krad]

you dont use the ssd for dedup, more you use it as an l2arc device.
Hopefully the full dedup table is stored in the cache. Alternatively just
but LOTS of ram in you machine. In my experience dedup is very expensive,
and unless the ratio is very high its cheaper and simpler just to buy the
extra storage. Often you can get the benefits of dedup, without actually
using is though. eg clone a zfs fs rather than clone at the vm level for
instance. Thing will diverge over time of course, but it can give you a lot
of what u need.


On 10 March 2014 14:03, Albert Shih <Albert.Shih at obspm.fr> wrote:

> Hi all,
>
> If I use a ssd for dedup, what's happen if I loose the content of the ssd.
>
> Can I get the data event without the ssd ?
>
> I ask that because SSD is expensive so make raid on SSD is more expensive.
> So I like to use just one SSD for the dedup.
>
> Regards.
>
> JAS
>
>
> --
> Albert SHIH
> DIO bâtiment 15
> Observatoire de Paris
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> Heure local/Local time:
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