Re: CentOS and LessFS

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On 01/17/12 4:41 PM, Nataraj wrote:
> On 01/17/2012 03:36 PM, Les Mikesell wrote:
>> >
>> >  I wouldn't trust any of the software block-dedup systems with my only
>> >  copy of something important - plus they need a lot of RAM which your
>> >  old systems probably don't have either.
>> >
> I am interested in backuppc, however from what I read online it appears
> that zfs is a very featureful robust  high performance filesystem that
> is heavily used in production environments.

ZFS is very memory intensive on larger file systems.  I believe they 
recommend on the order of 1GB ram per terabyte of storage for decent 
performance.

Personally, I would only run ZFS for any sort of production application 
on a Solaris 10/11 system where its natively supported, and then only 
with a support contract from Oracle.

When its good, its very good, when its bad, its reformat and restore 
from backup time...



-- 
john r pierce                            N 37, W 122
santa cruz ca                         mid-left coast

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