On Mar 22, 2005, at 2:03 PM, Gregory K. Ruiz-Ade wrote:

On Monday 21 March 2005 08:19 pm, Andrew P. Lentvorski, Jr. wrote:
Come to the BSD side, my son ...

* No software RAID

* No integrated volume management (the likes of LVM/EVMS, which I'm used to
from both HPUX and Linux systems) unless I'm not comprehending things on
freebsd.org

Go check out GEOM. It's in the base FreeBSD 5.3. I believe that it answers both of those concerns.


It's *certainly* answer the software RAID concern. Although, I've had software raid running on FreeBSD since 4.8 using Vinum. RAIDFrame used to work on both FreeBSD and NetBSD (but has since been supplanted on FreeBSD).

GEOM is damn sweet. It virtualizes *everything* about the filesystem handling and makes it capable of being adjusted on the fly without ever shutting the system down. The management tools are very weak (ie. everything has to be done with config files and/or from the command line), but you can reconfigure your filesystems with almost infinite configurability.

By the same token, you can *demolish* your filesystems in a hurry, too. Been there, done that.

Here's a link about the architecture itself:
http://phk.freebsd.dk/pubs/bsdcan-04.slides.geomtut.pdf

Feel the power flow through you ...

I'd rather it flow into me.

But if it never flows out, you go *boom*. ;)

-a

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