On Tuesday 22 December 2009, David Dillow wrote: > On Tue, 2009-12-22 at 18:09 +0100, Bernd Schubert wrote: > > On Tuesday 22 December 2009, Nick Jennings wrote: > > > On 12/21/2009 07:36 PM, Brian J. Murrell wrote: > > > > Photographs of 25 line console screens are not very often suitable > > > > substitutes for real console logging, unfortunately. Seriously, if > > > > you really want to pursue this issue, you are going to have to set up > > > > some form of console logging. I think netconsole is usually fairly > > > > successful at capturing kernel oops dumps. Maybe that's an option. > > > > ISTR mentioning netconsole the last time though. Maybe that was > > > > another thread. > > > > > > You're right, I just hadn't gotten around to getting netconsole set up > > > like I planned. *blush* :) > > > > Most servers nowadays have IPMI and an IPMI SOL is much better. > > Heh, I'd like to know what servers you are running. Our experience with > IPMI SOL on a variety of systems has been anything but reliable. It has > a notorious habit of dropping out under any sort of load, such as during > an oops where you need it the most. > > It's still better than nothing, but it's a crapshoot. >
Yes, I know about IPMI issues, of course. In my experience, SuperMicro IPMI with an additional NIC port works perfectly. I don't know about their most recent mainboards and BMCs, though. The first week I started for DDN I learned that Dell-DRAC5 has a bug and does not send a break (sysrq). According to Dell, this is fixed in their recent firmware released 7 days ago (I opened the 'priority' call on March 6th), but I could not check yet. Also working rather well is HP ilO, although not with SOL, but their build in "vsp". The problem with vsp is that cursor-keys do not work and navigating through the grub-menu is a pain, unless you know emacs shortcuts in and out (I'm a vi user...). Cheers, Bernd -- Bernd Schubert DataDirect Networks _______________________________________________ Lustre-discuss mailing list [email protected] http://lists.lustre.org/mailman/listinfo/lustre-discuss
