DragonFly users List (threaded) for 2009-02
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DragonFly users List (threaded) for 2009-02
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Re: OT - was Hammer or ZFS based backup, encryption


From: Bill Hacker <wbh@xxxxxxxxxxxxx>
Date: Mon, 23 Feb 2009 04:53:35 +0800

Jeremy Chadwick wrote:

*snip*


The problem I was attempting to describe: all pool members must be the same size, otherwise all members are considered to be equal to the size of the smallest. In English: you cannot "mix-and-match" different sized disks.


*TILT*


C'mon guys - that has nuthin to do with ZFS or any other RAID [1].

Grocery-store rithmetic says you can't put 2 liters of wine into a one-liter bottle.

(though there IS a MIL-SPEC exercise called a 'blivet' that tries to get ten liters of sh** into a one-liter container .. ...with predictable mess to be dealt with, fecal matter having rather poor compression algorithms)

;-)


Bill


[1] Though some 'grid farm' and cousins attack the problem differently - sort of a JBOD confederation with (some of) the contents replicated one or more times and in one or more places - wherever there is space, or least-usage, or greatest 'quality', or most eager 'volunteer', or ....

Whole 'nuther subject, those.

And neither ZFS not HAMMER is of that family.

Not *yet*



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