We don't run diskless systems, but use cgroups where possible to limit the damage users can do to a node. We derate the node's total usable memory by 2GB (OS) + GPFS pagepool to avoid paging whenever possible.
On Fri, Nov 08, 2019 at 11:31:20AM -0500, david_john...@brown.edu wrote: > We have most of our clients network booted and diskless ??? no swap possible. > Gpfs still works until someone runs the node out of memory.... > > -- ddj > Dave Johnson > > > On Nov 8, 2019, at 11:25 AM, Damir Krstic <damir.krs...@gmail.com> wrote: > > > > ??? > > I was wondering if it's safe to turn off swap on gpfs client machines? we > > have a case where checkpointing is swapping and we would like to prevent it > > from doing so by disabling swap. However, the gpfs manual admin. manual > > states to have swap enabled and sufficiently large, but it does not > > distinguish between clients and IO servers. > > > > Let me know when you get a chance. -- -- Skylar Thompson (skyl...@u.washington.edu) -- Genome Sciences Department, System Administrator -- Foege Building S046, (206)-685-7354 -- University of Washington School of Medicine _______________________________________________ gpfsug-discuss mailing list gpfsug-discuss at spectrumscale.org http://gpfsug.org/mailman/listinfo/gpfsug-discuss
