[[TOC]]

This page is intended to give a short overview on known issues and to provide potential solutions and workarounds to the issues seen.

''Last update: 2022-01-21''

[[span(style=color: #FF0000, Rocky 8.5 being rolled out to the compute nodes, expect limited access to some of the nodes !)]]


{{{#!comment highlighted red text
[[span(style=color: #FF0000, System maintenance from Monday, 2020-09-07 to Friday, 2020-09-11, no user access !)]]
}}}

To stay informed, please refer to the [wiki:Public/User_Guide/News News page]. Also, please pay attention to the information contained in the "Message of the day" displayed when logging onto the system. 


== Detected HW and node issues ==

=== CM nodes ===

* dp-cn06: MCE Errors found (#2819)

* dp-cn25: SEL ProblemsFW issues (#2769)

* several cluster nodes marked as down in the scope of the Rocky 8.5 roll out

       
=== DAM nodes ===

* dp-dam02: reserved for FPGA tests
* dp-dam[05-08]: reservation "maint-dam-rocky85" in place for Rocky 8.5 tests
* dp-dam[09-16]: OS update ongoing


=== ESB nodes ===

* dp-esb[01,02]: pshealthcheck failed for BeeGFS
* dp-esb[07,13,16,22]: problems with energy meter


=== SDV nodes ===

* deeper-sdv cluster nodes (Haswell) have been taken offline: deeper-sdv[01-16]
  - not included in SLURM anymore  
  - deeper-sdv[09-10] used for testing (please contact j.kreutz(at)fz-juelich.de if you would like to get access

* knl01: serves as golden client for imaging only

* dp-sdv-esb[01,02]: Slurm update required


== Software issues ==

- Moving to Rocky 8.5 and the new Easybuild stage 2022 (in February) might cause unexpected behavior and problems with the installed software components:


**Please, use the support mailing list `sup(at)deep-sea-project.eu` to report any issues**



{{{#!comment JK: invalid
=== GPU direct usage with Extoll on DAM ===

- new Extoll driver for GPU direct over Extoll still shows low performance on the DAM nodes
- available via Developer stage, for testing load:

{{{
ml --force purge
ml use $OTHERSTAGES
ml load Stages/Devel-2020
ml load Intel
ml load ParaStationMPI
}}}

- expect performance (and maybe also stability) issues
}}}