From: RobertB 

In article ,
 mike  wrote:

> On Mon, 18 Dec 2006 11:04:02 -0500, RobertB 
> wrote:
>
> >In article ,
> > mike  wrote:
> >
> >> On Sun, 17 Dec 2006 16:25:04 -0500, RobertB

> >> wrote:
> >>
> >> >In article ,
> >> > mike  wrote:
> >> >
> >> >>
http://translate.google.com/translate?u=http%3A%2F%2Fmac4ever.com%2Fnew
s
> >> >> %2F
> >> >> 274
> >> >>
85%2Fzettabyte_sur_leopard%2F&langpair=fr%7Cen&hl=en&ie=UTF-8&oe=UTF-8&
p
> >> >> rev
> >> >> =%2
> >> >> Flanguage_tools
> >> >>
> >> >> ===
> >> >> Parmis the few innovations of Leopard, one read
these last months,
> >> >> several rumours on the integration of a new filing
system, the ZFS,
> >> >> which presents a revolution in the field of the
storage of data.
> >> >>
> >> >> This rumour seems to be confirmed, since one sees
finally apparaitre in
> >> >> the utility of discs of Leopard, an option to create
images and
> >> >> partitions in this format. On the other hand, it is
not known yet if it
> >> >> will be right another supported system, or if it has
the role to
> >> >> replace
> >> >> the HFS+ for the disc system.
> >> >>
> >> >> ZFS amongst other things integrates functionalities
of advanced
> >> >> safeguards which could be used very well by Apple
for Time Machine for
> >> >> example. This known as, it is a sympathetic
innovation, but that still
> >> >> does not say to us what Steve wanted to hold secret signal…
> >> >> ===
> >> >>
> >> >>  /m
> >> >
> >> >What's the source, so I can read it in the original?
> >>
> >> At the top of the google translated page is the link to the original.
> >>
> >>  /m
> >
> >OK. I found it. What's Zettabyte File System anyway?
>
> Some more info:
>
> http://loop.worldofapple.com/archives/2006/12/17/zfs-file-system-makes-it-to-
m
> ac-os-x-leopard/
>
> ===
> Back in May of this year it was rumoured that Apple’s File System
> Development Team had contacted Sun Microsystems to help in a translation
> of the Zettabyte File System to Mac OS X.
> Zettabyte File System makes appearance in Mac OS X 10.5, Disk Utility
>
> With the most recent Build of Mac OS X 10.5 Leopard, ZFS has appeared to
> have finally made an appearance, as per the rumours.
>
> Sun Microsystems describes ZFS as the “last word in File Systems,” the
> file system is well known for being incredibly resilient to data
> failure, having immense capacity and being the first 128-bit file
> system.
>
> Lets look at ZFS’s ability to keep data safe, everything on ZFS is
> “copy-on-write” meaning that the file system never overwrites live data
> and it leaves no windows of vulnerability. Also on ZFS, everything is
> transactional meaning that a file copy will either completely fail or be
> a complete success not half and half leaving you with a mess to clean
> up.
>
> Finally the most important feature of data integrity os check summing
> and everything on ZFS is checksummed meaning zero data corruption.
>
> The Zettabyte File system is also incredibly scalable adding value to
> users of both server and home environments. ZFS has a data storage
> capacity of 256 quadrillion zettabytes and a maximum file size of 16
> exabytes (that’s 17179869184 terabytes).
>
> Overall ZFS offers the following key advantages:-
>
> Pooled storage - No requirement for a volume manager when extra volumes
> added, the volume is simply added to a pool creating a vdev (virtual
> device), a collection of vdevs makes up a zpool, which in essence is the
> storage available to the file system.
>
> Snapshots - Read-only point in time of the file system
>
> Clones - write-able copy of a snapshot
>
> RAID-Z - Makes use of copy-on-write; rather than overwriting old data
> with new data, it writes new data to a new location and then overwrites
> the pointer to the old data
>
> Detects and then corrects data corruption
>
> Incredibly fast due to intelligent pre-fetching, and dynamic
> striping....
> ===

So what's not to like? 

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