Vaguely related, we used to see the out of memory killer regularly go for
mmfsd, which should kill user process and pbs_mom which ran from gpfs.
We modified the gpfs init script to set the score for mmfsd for oom to help
prevent this. (we also modified it to wait for ib to come up as well,
We do use cgroups to isolate user applications into a separate cgroup which
provides some headroom of CPU and memory resources for the rest of the system
services including GPFS and its required components such SSH, etc.
-B
-Original Message-
From:
Hi Luke,
Assuming the network between your clusters is reliable, using GPFS with
SW-mode (also assuming you aren't ever modifying the data on the home
cluster) should work well for you I think. New files can continue to be
created in the cache even in unmounted state
Dean
IBM Almaden
Hi Luke,
Assuming the network between your clusters is reliable, using GPFS with
SW-mode (also assuming you aren't ever modifying the data on the home
cluster) should work well for you I think. New files can continue to be
created in the cache even in unmounted state
Dean
IBM Almaden
Anybody know the answer?
> HI All,
>
> We have two clusters and are using AFM between them to compartmentalise
> performance. We have the opportunity to run AFM over GPFS protocol (over IB
> verbs), which I would imagine gives much greater performance than trying to
> push it over NFS over
its direct SAS attached .
--
Sven Oehme
Scalable Storage Research
email: oeh...@us.ibm.com
Phone: +1 (408) 824-8904
IBM Almaden Research Lab
--
From: "Simon Thompson (Research Computing - IT Services)"
I had a slightly strange discussion with IBM this morning... We typically buy
OEM GPFS with out tin. The discussion went along the lines that spectrum scale
is different somehow from gpfs via the oem route.
Is this just a marketing thing? Red herring? Or is there something more to this?
Thanks
There's a bit more at:
http://www.theregister.co.uk/2016/03/02/ibm_adds_sandisk_flash_colour_to_its_storage_spectrum/
When I looks as infiniflash briefly it appeared to be ip presented, so guess
something like and Linux based system in the "controller". So I guess they have
installed gpfs in
Anyone from the IBM side that can comment on this in more detail? (OK if you
email me directly) Article is thin on exactly what’s being announced.
SanDisk Corporation, a global leader in flash storage solutions, and IBM today
announced a collaboration to bring out a unique class of
