[wplug] NAS Appliance recommendations

[James O'Kane]

I can understand the reason to tell the os you have a fixed sized partition,
but having a volume that isn't backed my real disk seems scary to me. I'm
assuming that you'll get just a write failure if you exceed the physical
space?  And if you're writing to both of them it could be either of the that
fails first?  Is there a software way of determining the amount of physical
space remaining?

On Aug 19, 2009 12:04 PM, "Patrick Wagstrom" <patrick at wagstrom.net> wrote:

I've had no problems running a ext3 on my drobo.  Everything works just as
you would expect it.  The caveat is that it's a little harder to get volume
sizes in excess of 2TB.

Here's how the drobo typically works:

power on drobo, insert bunch of drives, boom 2tb drive shows up on operating
(regardless of actual storage size).  This is something that is typical of
almost any logical storage device because operating systems don't often deal
with drives changing their size on the fly.

If you add in more drives you'll have an additional drive just show up.  So,
if you've got 3x1TB drives and 1x500GB in your drobo, you'll have 2.5TB of
usable space. This will show up as /dev/sdc1 and /dev/sdc2 as both being 2TB
drives.  You can fill either one with 2TB of data, as long as the other
doesn't have more than 500GB. Furthermore, you can change on the fly,
balance with 1.25TB on each, whatever.

With NTFS and HFS+ you can specify up to a 16TB volume size.  You can do the
same for EXT3, but it's a little more complicated.

--Patrick


On Wed, Aug 19, 2009 at 1:04 PM, G.Pitman <gpitman at gmail.com> wrote:

> > > We do have a guy in house that has been using a Drobo for over a year
> and is pretty happy. > > I...
>
> > _______________________________________________ > wplug mailing list >
> wplug at wplug.org > http://ww...
>


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