[SATLUG] lvm2 and raid 0
Todd W. Bucy
toddwbucy at grandecom.net
Mon Jan 7 10:22:02 CST 2008
I am getting ready to build a new box in the next couple of days.
However I can only afford two 500 gig drives. I would eventually like
to expand to four or six 500 gig drives. If I set my first two up as
Raid 1 can I latter and another drive and change to Raid 5 without
having to back up, format, and re-setup my system. Or would I be better
off setting up an LVM. I want the speed benefits as well as the
redundancy benefits of Raid but I also want the ease of adding
additional drives latter when I can afford them.
Thanks in advance for any advice you can offer
John Pappas wrote:
> On Jan 6, 2008 5:20 PM, Chris Lemire <good_bye300 at yahoo.com> wrote:
>> Having redundancy and striping requires at least 3 hard disks, right?
> Beyond Daniel's input, Striping requires 2, Mirroring requires 2, others
> (R3,4,5) require 3. There are some redundancy configs that require more
> than that (hybrid raid, raid "6"), but fundamentally, redundancy infers
> copy, so there must be a way to explicitly or implicitly derive the copy.
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