[Ukfreebsd] FreeBSD 9.0

Daniel Austin MBCS daniel at kewlio.net
Thu Jun 23 01:08:05 BST 2011


On 23/06/2011 00:34, Sevan / Venture37 wrote:
> On 23 June 2011 00:19, Daniel Austin MBCS<daniel at kewlio.net>  wrote:
>> I have played with dedup in v28 on a few other servers and decided strongly
>> against it - for me, with the cheap cost of disks lately, the additional ram
>> and cpu overhead for dedup is too much to be useful.
>> The memory overhead increase when I enabled dedup on some test servers was
>> quite substantial - and turning it off isn't as easy as turning it off
>> either!
>
> http://hub.opensolaris.org/bin/download/User+Group+losug/u%2D2011/s11ezfslosug.pdf
>
> See page 10&  11

Yep - i'd say in some circumstances those figures are at the lower end 
of the scale too.  Anyways, running v28 zfs on multiple servers (with 
dedup disabled) under 9-current and not had any horror stories to report 
yet :-)


Thanks,

Dan.



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