[slurm-users] Reservation vs. Draining for Maintenance?

[Ing. Gonzalo E. Arroyo]

When I need to do something like this I let the automatic SLURM management
to do the job. I only shutdown by using SSH, replace something, then power
on and everything starts Ok, other option is to call resume in case of any
failure, and restart the slurm services in nodes... Regards

*Ing. Gonzalo E. Arroyo - CPA Profesional*
IFIMAR - CONICET
*www.ifimar-conicet.gob.ar <http://www.ifimar-conicet.gob.ar>*

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El jue., 6 ago. 2020 a las 14:13, Jason Simms (<simmsj at lafayette.edu>)
escribió:

> Hello all,
>
> Later this month, I will have to bring down, patch, and reboot all nodes
> in our cluster for maintenance. The two options available to set nodes into
> a maintenance mode seem to be either: 1) creating a system-wide
> reservation, or 2) setting all nodes into a DRAIN state.
>
> I'm not sure it really matters either way, but is there any preference one
> way or the other? Any gotchas I should be aware of?
>
> Warmest regards,
> Jason
>
> --
> *Jason L. Simms, Ph.D., M.P.H.*
> Manager of Research and High-Performance Computing
> XSEDE Campus Champion
> Lafayette College
> Information Technology Services
> 710 Sullivan Rd | Easton, PA 18042
> Office: 112 Skillman Library
> p: (610) 330-5632
>
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