[geeks] Thoughts? (Cheap NAS with nice feature set)
Shannon Hendrix
shannon at widomaker.com
Sat Apr 5 18:03:08 CDT 2008
On Apr 5, 2008, at 12:27 , Patrick Giagnocavo wrote:
>> I was hoping that maybe if a drive went bad, you could install
>> another on USB/Firewire/whatever and add it to the pool with the
>> failing drive, and migrate data to it without creating a new pool
>> and copying data to new filesystems.
>
> You can do something like this, yes. The "zfs send" command lets
> you move a filesystem around as well. Or I think you could make it
> a mirror, let it sync, then disconnect and use just the one drive.
What I used to do on my Linux system was resize /usr, /opt, /var as
needed by growing and shrinking the filesystems and RAID chunks.
It seems ZFS let's you grow and shrink a filesystem, but not a pool.
I think that's OK for my immediate uses.
A lot of ZFS websites talk about being able to do data migration or
replace a drive simply by yanking a drive and waiting for ZFS to heal
itself, but that would seem to require growing a pool which I thought
was not a feature.
I guess there is a mix of old and new information about ZFS to sift
through.
--
"Where some they sell their dreams for small desires."
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