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Re: [zfs-discuss] Can ZFS dynamically grow pool sizes? (re: Windows Home

Subject: Re: [zfs-discuss] Can ZFS dynamically grow pool sizes? re: Windows Home Server
From: Russell Hansen
Date: Thu, 13 Aug 2009 11:16:20 PDT
Is it possible to use the zfs copies property and put the disks individually 
into a pool?  That would give you 3TB (1.5 + 1 + .5) usable.

http://blogs.sun.com/relling/entry/zfs_copies_and_data_protection

States that copies will be spread across disks.  But what I don't know (and 
don't have a test box to figure out) is if losing a disk still kills the whole 
pool in spite of having multiple copies of the data.  I have a sneaking 
suspicion is the pool would be toast.

-Russ


> Erik Trimble wrote:
> 
> While the "figure it out for me and make it as big as
> you can while still being 
> safe" magic of drobo is nice for home users, it's
> less than ideal for enterprise 
> users that require performance guarantees.
> 
> It would be nice if somebody created a simple tool
> that, fed a set of disks, 
> computed the configuration required for maximum
> usable redundant space.
> 
> -- 
> Carson
> 
> 
> 
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