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North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: Operate until failure
First thing that comes to mind is a perl script that, given the correct password/passphrase can `ssh -l [machine] shutdown -h now`, seems pretty simply to me, assuming you keep a list of all the servers current with a common RSA auth key or whatnot. Matthew S. Hallacy XtraTyme Technologies On 8 Jan 2001, Sean Donelan wrote: > > On Mon, 08 January 2001, Henry Yen wrote: > > And if you are running a late-model linux (preferably RedHat), you can > > download APC's own "award-winning PowerChute Plus" software for linux from > > their website. It seems to be identical to PowerChutePlus running on > > any other platforms, except that the interface is through X86. > > And what if you are not using APCs? > > One issue with highly redudandent data centers is the failure modes are > "interesting." You don't want to shutdown due to a single UPS failure, so > you don't use something simple like PowerChute Plus. You most likely don't > want to shutdown based on any automatic signal. However, you do want a way > for an operator to gracefully shutdown a lot of equipment quickly when > the decision is made. > > For a server farm, with potentially thousands of individual systems, is > there any standard piece of software you can install on all of the systems > to act as a receiver of a signal to begin a graceful shutdown that does > not depend on a vendor's proprietary interface? Preferabally one which > does not involve running a lot of additional wires. > > I know, everyone says their systems will never fail. Think of this > as the "else" statement for the condition which will never happen. > > Again this is only needed if people want a gracefull shutdown. If > you can live with a hard shutdown, you wouldn't require this. If you > use ctrl-alt-del as a normal management practice, I suspect you don't > really require a graceful shutdown. > > > |