Re: what is our answer to ZFS?
From: Alfred Brons
Date: Mon Nov 21 2005 - 05:02:27 EST
I wasn't aware of this thread.
But my question was: do we have similar functionality
in Linux kernel?
Taking in account ZFS availability as 100% open
source, I'm starting think about migration to Nexenta
OS some of my servers just because of this feature...
--- Paulo Jorge Matos <pocmatos@xxxxxxxxx> wrote:
> Check Tarkan "Sun ZFS and Linux" topic on 18th Nov,
> on this mailing list.
> Paulo Matos
> On 21/11/05, Alfred Brons <alfredbrons@xxxxxxxxx>
> > Hi All,
> > I just noticed in the news this link:
> > I wonder what would be our respond to this beaste?
> > btw, you could try it live by using Nexenta
> > GNU/Solaris LiveCD at
> > http://www.gnusolaris.org/gswiki/Download which is
> > Ubuntu-based OpenSolaris
> > distribution.
> > So what is ZFS?
> > ZFS is a new kind of filesystem that provides
> > administration, transactional semantics,
> > data integrity, and immense scalability. ZFS is
> not an
> > incremental improvement to existing technology; it
> > a fundamentally new approach to data management.
> > blown away 20 years of obsolete assumptions,
> > eliminated complexity at the source, and created a
> > storage system that's actually a pleasure to use.
> > ZFS presents a pooled storage model that
> > eliminates the concept of volumes and the
> > problems of partitions, provisioning, wasted
> > and stranded storage. Thousands of filesystems can
> > draw from a common storage pool, each one
> > only as much space as it actually needs.
> > All operations are copy-on-write transactions, so
> > on-disk state is always valid. There is no need to
> > fsck(1M) a ZFS filesystem, ever. Every block is
> > checksummed to prevent silent data corruption, and
> > data is self-healing in replicated (mirrored or
> > configurations.
> > ZFS provides unlimited constant-time snapshots and
> > clones. A snapshot is a read-only point-in-time
> > of a filesystem, while a clone is a writable copy
> of a
> > snapshot. Clones provide an extremely
> > way to store many copies of mostly-shared data
> such as
> > workspaces, software installations, and diskless
> > clients.
> > ZFS administration is both simple and powerful.
> > tools are designed from the ground up to eliminate
> > the traditional headaches relating to managing
> > filesystems. Storage can be added, disks replaced,
> > data scrubbed with straightforward commands.
> > Filesystems can be created instantaneously,
> > and clones taken, native backups made, and a
> > simplified property mechanism allows for setting
> > quotas, reservations, compression, and more.
> > Alfred
> > __________________________________
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> Paulo Jorge Matos - pocm at sat inesc-id pt
> Web: http://sat.inesc-id.pt/~pocm
> Computer and Software Engineering
> INESC-ID - SAT Group
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