Re: Fwd: swap

Len, Patrick:
Thanks. Actually, I didn't see the original by Len.

Well, security comes first. Also, the idea of setting
in a cheap HD was a faulty idea anyway because I am at
WD Raptor just because cheap HDs didn't work on long
runs.

The mentioned Tyan mother board has 4 SATA ports, two,
I suppose, already occupied by raid1. Following the
suggestion by Len, is that possible to install another
raid1 (just for additional disk space, say swap) while
preserving the current Debian amd64 etch on present
raid1 (Linux driven)? This machine is ssh with Debian
i386 as graphical interface on another machine so that
reinstalling everything on new HDs would not be
attractive. Also, I am pressed to fish some
computations.

Thanks again
francesco

--- Patrick Albuquerque <patrick@xxxxxxxxxxxxxx>
wrote:

On Mon, May 07, 2007 at 10:03:00AM -0400, Lennart
Sorensen wrote:
On Mon, May 07, 2007 at 03:10:11AM -0700,
Francesco Pietra wrote:
Below I mean adding a single HD not to the raid,
just
as additional space where to point the swap file
thanks

Running a raid1 system with non raid swap just
doesn't make sense. If
the swap drive fails, your system dies horribly
possible in ways that
could mess up the filesystem. Why make a system
with redundancy
suddenly have none? Better to buy a pair of those
drives and run swap
on another raid1.

--
Len Sorensen



To answer the original question: Yes, it is
possible.

As the other respondents have indicated, you would
be facing some
increased risk and the question is whether the
increased risk is an
acceptable trade-off for you.

If I really, really needed the performance, I'd put
the swap on 2
striped raid0 drives. I'd probably mount every
partition except /var
and /home/workplace read-only though.

Patrick.
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