On Sep 2, 2009, at 7:14 PM, rarok wrote:
I'm just a casual at ZFS but you want something that now don't exists.
The most of the consumers want this but Sun is not interested in that
market. To grow a existing RAIDZ just adding more disk to the RAIDZ
would be great but at this moment there isn't anything like that.
Out of curiosity, what do the folks who want to grow their raidzs
do for backups? Is restoring a backup to a newly created enlarged
raidz any more dangerous than the rewriting involved in doing it
on the fly? Hardware is so cheap these days, why not make a backup
raidz server (power it up only to do backups, or better yet, switch
to it periodically to make sure it works), and when the time comes
to make the raidz bigger, just do it, one server at a time? You
can run off the backup whilst the new, larger server is resilvering
and have negligable downtime that way.
If you are really cheap, get a couple of huge USB drives and do
the backups there. Either way, they are important, and zfs
send/recv is such a great way of making verifiable backups.
Cheers -- Frank
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