Maybe what you want is to archive files off to optical media?
Perhaps ADM - http://opensolaris.org/os/project/adm ?
-- mark
Bob Friesenhahn wrote:
On Mon, 21 Apr 2008, Dana H. Myers wrote:
Bob Friesenhahn wrote:
Are there any plans to support ZFS for write-only media such as optical
storage? It seems that if mirroring or even zraid is used that ZFS would
be a good basis for long term archival storage.
I'm just going to assume that "write-only" here means "write-once,
read-many", since it's far too late for an April Fool's joke.
Yes, of course. Such as to CD-R, DVD-RW, or more exotic technologies
such as holographic drives (300GB drives are on the market). For
example, with two CD-R drives it should be possible to build a ZFS
mirror on two CDs, but the I/O to these devices may need to be done in
a linear sequential fashion at a rate sufficient to keep the writer
happy, so temporary files (or memory-based buffering) likely need to
be used.
No one wants to be faced with a situation in which two copies are made
to CD but both copies are deemed to be bad when they are read. ZFS
could make that situation much better.
Bob
======================================
Bob Friesenhahn
[EMAIL PROTECTED], http://www.simplesystems.org/users/bfriesen/
GraphicsMagick Maintainer, http://www.GraphicsMagick.org/
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