Date: Fri, 11 May 2007 11:41:13 -0600 From: Elliot Finley <efinley@efinley.com> To: Ivan Voras <ivoras@fer.hr> Cc: freebsd-current@freebsd.org Subject: Re: ZFS the perfect FS? if only... Message-ID: <qja94352hc2o9r15b7fnmvlfk86ums6m4o@4ax.com> In-Reply-To: <f2057n$uhn$1@sea.gmane.org> References: <cbi6431a042bfp601o08c5pp7abbqmpm54@4ax.com> <f2057n$uhn$1@sea.gmane.org>
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On Fri, 11 May 2007 00:09:52 +0200, you wrote: >Elliot Finley wrote: >> If you could start with a 3 drive zraid2 as the underlying pool >> storage and later add drives to the existing zraid2 as space was >> needed, then ZFS would be the ultimate FS (at least for me). >>=20 >> Any takers? How hard would this be? > >Isn't zraid2 like RAID6, e.g. includes 2 "parity" components? How do you >propose to redistribute the parity blocks after a disk is included in >already functioning RAID5 or RAID6 volume? > >(hint: http://en.wikipedia.org/wiki/RAID5#RAID_5) The new 3Ware cards do Online Capacity expansion. So it's obviously not impossible.
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