Date: Tue, 7 Jul 2009 09:10:16 -0700 From: Freddie Cash <fjwcash@gmail.com> To: freebsd-isp@freebsd.org Subject: Re: zfs in production Message-ID: <b269bc570907070910jfd004ffkcdabfac3ea6e68b9@mail.gmail.com> In-Reply-To: <4A536C7B.7030902@ericx.net> References: <4A536C7B.7030902@ericx.net>
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On Tue, Jul 7, 2009 at 8:40 AM, Eric W. Bates <ericx@ericx.net> wrote: > Sorry to ask an obvious question... But what's the advantage to zfs? > There's plenty of information regarding ZFS available online. :) A very quick synopsis of the main features would be: - pooled storage setup, which can be easily expanded as needed, and is available to all filesystems/volumes - built-in striping (RAID0), n-way mirroring (RAID1), raidz1 (modified RAID5), raidz2 (modified RAID6) - copy-on-write, and transactional filesystem - posix-compliant filesystem layer, and block storage / volume manager - infinite, constant-time, in-filesystem snapshots (read-only) - snapshots can be promoted to clones (read/write) - clones can be promoted to separate filesystems - built-in compression - end-to-end data integrity using checksums There's a whole bunch more to it than the above. Once you start using pooled storage for servers, it's really hard to go back to the old way of slicing and partitioning and allocating specific amounts of storage to each filesytem. :) -- Freddie Cash fjwcash@gmail.com
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