Document URL: =============== We have seen issues wrt performance and timeouts due to the default BIOS settings in RHEL8 By default BIOS power manager mode is set to "Dynamic Power Savings Mode", under this category RHEL-7 is able to modify CPU scaling frequency to the maximum while RHEL 8 is using half of the maximum frequency. After changing the bios setting to "OS Controlled" things are fixed. If we don't change the above, below issues have been seen so far: 1) drop in performance 2) timeout issues as mentioned in BZ#1810516 hence this needs to go into all the respective RHGS guides
I'd suggest to add a section "BIOS Settings" in the prerequisites chapter 1.2: https://access.redhat.com/documentation/en-us/red_hat_gluster_storage/3.5/html/installation_guide/sect-prerequisites1 /Patric
(In reply to Patric Uebele from comment #1) > I'd suggest to add a section "BIOS Settings" in the prerequisites chapter > 1.2: > https://access.redhat.com/documentation/en-us/red_hat_gluster_storage/3.5/ > html/installation_guide/sect-prerequisites1 > > /Patric To add on my comment, make the statement in a generic way, as we probably can't cover every specific BIOS setting. And also add a similar note to the HW Compatibility KCS https://access.redhat.com/knowledge/articles/66206 /Patric