On Tue, 13 Oct 2009, Pasi Kärkkäinen wrote: > > Hmm.. what kind of problems do you have with snapshots? Let's see They take up 16MB of space regardless of the amount of data that changes. A single bit changes and 16MB is taken up. This is not tunable. Mounting a snapshot requires the generation of a new UUID for the file system in order to be able to use it. Perhaps this is a XFS limitation, but unlike ZFS they aren't immediately available. We need to perform this action extensively to backup file systems and allow for quick data recovery. There is no GNU/Linux interface to automating the snapshot process. Sure there is a telnet interface but it changes from version to version. I know because I've spoken with engineers to discuss this issue. I wrote software to talk to the EQL using the interface. There are talks of an SDK for developers but nothing has materialized. Don't get me wrong, it's a great device for cheap storage compared to competitors but there are obvious limitations that you need to address in your requirements if you intend to deploy it. -- James A. Peltier Systems Analyst (FASNet), VIVARIUM Technical Director HPC Coordinator Simon Fraser University - Burnaby Campus Phone : 778-782-6573 Fax : 778-782-3045 E-Mail : jpeltier at sfu.ca Website : http://www.fas.sfu.ca | http://vivarium.cs.sfu.ca http://blogs.sfu.ca/people/jpeltier MSN : subatomic_spam at hotmail.com Does your OS has a man 8 lart? http://www.xinu.nl/unix/humour/asr-manpages/lart.html