Comment # 9 on bug 1202138 from Michal Suchanek

It look like the these machine are Opal-only so the the firmware version is not
comparable with the PowerVM firmware versions

The latest firmware available from https://www.ibm.com/support/fixcentral

8335-GCA:
8335_820.1923.20190604n_update.hpm  OP8_v1.12_2.98.pd.sdd 
S822LC-8335-GCA-GTA-OpenPowerReadme_op820.30.xhtml

8348-21C:
8348_820.1923.20190613n.html  8348_820.1923.20190613n_update.hpm 
OP8_v1.12_2.96_H.dd.xml  OP8_v1.12_2.96_H.pd.sdd

The machines use different firmware build so the results between them are not
really comparable.

Please update the firmware on the problematic machine.