Why are my filesystems no longer exported from my head node after setting up HA?
Short answer: It is done by Bright to protect the filesystems from corruption. The longer answer, and using a workaround,...
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How to Install Lustre with ZFS and HA for OSS and MDS Nodes
Prerequisites: 2 OSS nodes connected via SAS over multiple paths to their own JBOD shared storage (minimum eight drives) 2... -
How can I configure a dedicated cloning network in an HA cluster?
Introduction There are situations where configuring a dedicated cloning network on your headnode HA is required, or would be useful.... -
When I shutdown a HA headnode manually, failover doesn’t occur. Why?
Manually shutting down a headnode means: Running the Linux shutdown or poweroff command. Triggering a shutdown with sysrq. Shutting down... -
How do I configure PBSPro HA with DAS shared storage?
This article is being updated. Please be aware the content herein, not limited to version numbers and slight syntax changes, may... -
One of my headnodes has died. How do I restore High Availability on my cluster?
This article assumes that HA is setup and configured properly, and that one of the nodes has completely died and... -
Is it possible to clone the primary headnode from the secondary in an HA cluster?
Important note: This process is generally used to recover a primary headnode from a failure state (filesystem corruption for example).... -
Extended Validation of HA Clusters
This article will describe additional validation tests that can be completed on a HA cluster to confirm proper operation. This... -
Why Are Software Images Not Syncing from the Active to the Passive Head Node?
After setting up head node high availability (HA) on a BCM cluster, you may notice that the software images are... -
How to Use a Compute Node as a Redundant Slurm Controller?
Let’s say that the BCM cluster already has Slurm deployed and that the cluster has one head node that is...