>> I am challenged with nearly 100 proprietary servers that I >need to remotely power control in a netboot environment. The >goal is to have these servers in a powered-off (or minimally >powered) state when not actively in use, and automate power-on >to network boot into a workload OS on demand. These servers >are directly powered in a way that I cannot mechanically >control. They are equipped with Intel 82757 LOM NICs, but >unfortunately do not have BIOS support for Wake-on-LAN (and >because they are LOM, I cannot update them with the Intel Boot >Agent).
Surprising to have Intel LOM not support WoL from S5 -- is this an Intel motherboard? >They do appear to support ACPI, so I hope there is a >way to leverage this to simulate a WoL capability. >> >> My thoughts are to place the server into an idle state by >network-booting a very lightweight OS (DSL, NDSL, PuppyLinux, >etc) then suspending it into ACPI S3 or S4 to minimize power >draw. On demand, we would need to "wake up" the server just >enough to force it to reboot -- at which point it would be >automated to network boot into a different OS to support the >workload required, so full recovery from these states may not >be necessary. The NIC will need to support WoL from S3 or S4 for that to work, yes? And if it does, then you might as well suspend the Linux you really want to run rather than suspending a mini-linux -- since there should be no power advantage to a mini linux in S3 versus a full linux in S3. cheers, -Len >> Is anyone here aware of any existing work along these lines, >have any suggestions, or can offer other alternatives? >> >> thank you! >> Henry >> >Why not trying to use Node Manager to do that ? _______________________________________________ Discuss mailing list [email protected] http://mail.lesswatts.org/mailman/listinfo/discuss
