STONITH? (Was: Ethernet/Serial Heartbeat question)

[Mike Francis]

Another simple device is the Dataprobe iBoot:  TCP/IP control of a =
single PC
outlet.  It can be controlled from a simple socket program, or from a =
web
page.

Michael Francis
Director, IS Systems
Informative Research
714/638-2855 x157
mikef@InformativeResearch.com


-----Original Message-----
From: Lars Marowsky-Bree [mailto:lmb@suse.de]
Sent: Wednesday, October 30, 2002 6:38 AM
To: Andre Bonhote; linux-ha@muc.de
Subject: Re: STONITH? (Was: Ethernet/Serial Heartbeat question)


On 2002-10-30T14:49:58,
   Andre Bonhote <anbonhote@coltinternet.ch> said:

> Well, as you convinced me, I am going to order two of these:
>=20
>
http://www.apcc.com/resource/include/techspec_index.cfm?base_sku=3DAP921=
2&lang
uage=3Den&LOCAL.APCCountryCode=3Dww
>=20

I would not suggest buying these. They are a fragile design (1 inlet =
for 8
outlets), and IMHO way overfeatured to classify as a "dumb power =
switch".
This
increases the chance of a bug in the code. Really, who needs a power =
switch
which can alert a pager, has web/snmp/ftp/SMTP interfaces? Way too =
complex.

I kind of like the WTI NPS-230 or the WTI RPS-10. (In Germany,
http://www.mdd-gmbh.de/ will sell them to you)

The NPS is a network switch; it can be controlled over ethernet (or =
also
serial), it has 2 power inputs and 8 outlets. This gives a bit better
redundancy over just 1 input, and they also appear more sturdy.

The RPS is serial; I like those for 2-node clusters where you can wire =
them
in
a kind of cross-over fashion (ie, one node attached to the serial input =
of
the
other node's power controller); this has even better redundancy as the
failure
even of a power switch is just isolated to one node.

> But now, I am quite stuck with the handling of them. They are capable =
of
> turning of machines over TCP/IP, but IIRC the docs in the ./stonith
> folder of heartbeat only mention the serial connection.

stonith -t apcmastersnmp -p "192.168.1.1 community 161" node

You'll need to configure the switch correctly of course. You need to =
setup a
SNMP writeable community and name the outlets correctly.


Sincerely,
    Lars Marowsky-Br=E9e <lmb@suse.de>

--=20
Principal Squirrel=20
SuSE Labs - Research & Development, SuSE Linux AG
 =20
"If anything can go wrong, it will." "Chance favors the prepared =
(mind)."
  -- Capt. Edward A. Murphy            -- Louis Pasteur