On 01/17/2012 04:59 PM, John R Pierce wrote: > 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. I think that is not so unreasonable for the features you are getting. I wonder if it would be possible to put the file system data structures on an SSD? I also have read that it is a good idea to use ECC memory on such a fileserver, but that's really true of any computer. Undetected memory errors will cause data loss. > 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. I am inclined to agree. If I was setting it up for a serious production environment, I would bite the bullet and run Solaris as well. > When its good, its very good, when its bad, its reformat and restore > from backup time... > We'll maybe I'll live with backuppc for now. Nataraj