Re: [opensuse] mdadm --grow

Greg Freemyer wrote:

On Thu, Oct 30, 2008 at 8:02 AM, Per Jessen <per@xxxxxxxxxxxx> wrote:
Greg Freemyer wrote:

All,

I'm conceptually putting together a NFS server in my head. (I will
build it once I know what it is!!)

What I want is something flexible.

ie. Have it start with 3 or 4 drives, then add a drive when I need
the capacity. Remove a drive when I don't. replace the drives with
bigger drives as the become available. All without losing my data.
(Or having to back it up / restore it.)

My first thought - LVM.

I'm very familiar with LVM. It does not really do the same things as
RAID. Not even if you only worry about the performance side of
things. ie. a 4 disk raid system is faster than a single disk for
most raid setups. With LVM based on 4-drives, it is typically just
the same speed as a single disk.

Completely agree, but I read your requirements above to be more to do
with space management than performance.


/Per

--
/Per Jessen, Zürich

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