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Latest resources
Browse the latest published and updated knowledgebaseIs it possible to change smp_affinity for IRQs associated with QLogic qpair threads?
* How to change the `smp_affinity` for IRQs associated with QLogic qpair threads?
lsscsi shows inconsistent WWID formats in multipath environments
* `lsscsi` (or `lsscsi-i`) shows inconsistent WWID formats for devices in a multi-path environment: ~~~ [0:3:110:0] disk DELL PERC H755 Front 5.30 /dev/sda 36f4ee08085bc99003142ac81f7c5409b [0:3:111:0] disk DELL PERC H755 Front 5.30 /dev/sdb 36f4ee08085bc990031342c760eb2226 [9:0:0:1] disk HITACHI OPEN-V 8301 /dev/sdc 1HITACHI_504029CE0997 <=== [9:0:0:2] disk HITACHI OPEN-V 8301 /dev/sdd 360060e801229ce00504029ce00000888 [15:0:0:1] disk HITACHI OPEN-V 8301 /dev/sde 360060e801229ce00504029ce00000887 [15:0:0:2] disk HITACHI OPEN-V 8301 /dev/sdf SHITACHI_OPEN-V_50410702 <=== ~~~
Troubleshooting RHACS Admission Control and Sensor Enforcement
This article provides a troubleshooting guide for RHACS Admission Controller and Sensor enforcement, including common configuration issues, policy settings, CI/CD considerations, known enforcement limitations, and version-specific behavior.
The iscsid process may hang after a network disruption, causing the system to stall in blk_mq_freeze_queue_wait
* The `iscsid` process may hang after a network disruption, causing the system to stall in `blk_mq_freeze_queue_wait`. * Network traffic interruptions between nodes can result in `iscsid` becoming unresponsive. * During SCSI device removal triggered by a race condition in error recovery, `iscsid` can become stuck in `blk_mq_freeze_queue_wait`.
Compliance scan rules for audit log forwarding return false positives or false negatives in RHOCP 4
Language English Verified Red Hat OpenShift Container Platform (RHOCP) 4 Red Hat OpenShift Logging (RHOL) with multiple `clusterLogForwarder Custom Resources (CR) Compliance Operator 1.10.0 These validation flaws and logical limitations are currently under investigation by Red Hat Engineering under Compliance scan rules for audit log forwarding return false positives or false negatives in RHOCP 4
Security Compliance Certifications report for internal audit clearance for OSD/ROSA/ARO clusters and Managed AAP
- Need SOC 2 Type2 report for OSD/ROSA/ARO/Managed AAP deployment for internal audit clearance.- Need SOC3 report for OSD/ROSA/ARO.- How to get the PCI-DSS certification report?- How to get the ISO 27001 certification report?- How to request a Penetration Test Executive Summary Report for ROSA/OSD?
Unable to boot or login to NFS diskless system with SELinux in Enforcing Mode
* After setting up a remote diskless system booted via NFS and enabling SELinux to `enforcing` mode, the client system hangs during boot, or users are unable to login via SSH or physical console. * Entering `enforcing=0` in the kernel command line parameters allows successful boot and login, but SELinux is degraded to `permissive` mode.
Compliance scan fails for ocp4-audit-log-forwarding-enabled when multiple ClusterLogForwarders exist in RHOCP 4
* A compliance scan fails with status `FAIL` for the rule `ocp4-audit-log-forwarding-enabled` or sibling rules (`ocp4-audit-log-forwarding-uses-tls`, `ocp4-cluster-logging-operator-exists`) when multiple `ClusterLogForwarders` exist in the `openshift-logging` namespace.
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Solutions
Solve specific problems that has been raised with Red HatHow to enable or disable repositories on a group of hosts from the Red Hat Satellite...
- Enable one `repository` or more on a group of hosts from the **Red Hat Satellite 6** Web UI - Disable one `repository` or more on a group of hosts from the **Red Hat Satellite 6** Web UI
Why podman fails to start with the error "Error: creating /etc/mtab symlink: operati...
* Why podman fails to start with the error "Error: creating /etc/mtab symlink: operation not permitted" in Red Hat Enterprise Linux ? ~~~ [test002@sgsvrdbk8sc03lx:~]$ podman run --rm -it docker.io/postgres:17.7-bookworm id Error: creating /etc/mtab symlink: operation not permitted ~~~
How To Disable/Enable FIPS on OpenShift 4
- Need to disable/enable `FIPS` after deploying a RHOCP cluster.
Articles
Technical briefs, reference architectures, and early stages of documentationRed Hat Case Management - Attachment Service API Guide
This document is the API usage guide for the Red Hat Case Management Attachment Service. It covers authentication, upload (single part and multipart up to 5 TB), download, deletion, status tracking, and metadata listing for file attachments on Red Hat support cases. The intended audience is developers and integration engineers building clients that interact with the attachment APIs at `https://api.access.redhat.com/support`.
Oracle Database on OpenShift Virtualization (OCP-V) On-Premises
This Article serves as a centralized index for tested and supported configurations, performance validations, and reference architectures for running Oracle Database workloads on OpenShift Virtualization.
Vmcore analysis techniques
Tips and tricks used to figure out what caused a system to panic.
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