> I'm looking for advice on using Magic SysRq Key Sequences over DRAC5 > ssh(see http://en.wikipedia.org/wiki/Magic_SysRq_key for background > reading on the subject). > > We have Dell 1950 and 2950 servers with DRAC version 1.20 firmware, and > normally use putty or OpenSSH to connect. As far as well can tell the > serial 'break' does not equate to the SysRq key as documented. > > These servers run Debian Linux, and we periodically have problems with out > of control memory situations. We could save servers from a hard reboot by > sending Magic SysReq commands such as "m" and "f" (to dump Linux Kernel > memory stats and invoke the Out of Memory Killer (oom-killer). Or make a > reboot nicer by syncing disks first. These commands work fine directly > from an attached keyboard (e.g. Alt-SysRq-m). Can we get Magic SysRq over > DRAC5?
I don't know how to convince DRAC but you can try HW independent solution using iptables module ipt_sysrq. -- Pavel Mateja _______________________________________________ Linux-PowerEdge mailing list [email protected] https://lists.us.dell.com/mailman/listinfo/linux-poweredge Please read the FAQ at http://lists.us.dell.com/faq
