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[PCA 2.x] Provision Disk Space from PCA Storage for Virtual Machines Core Dumps (Doc ID 2272195.1)

Last updated on OCTOBER 07, 2024

Applies to:

Private Cloud Appliance X8-2 - Version All Versions to All Versions [Release All Releases]
Private Cloud Appliance X5-2 Hardware - Version All Versions and later
Private Cloud Appliance - Version 2.0.1 and later
Linux x86-64

Goal

 A supported procedure for PCA's is required to enable compute nodes to create core dumps of virtual machines to a filesystem other than the default location of a compute node's local filesystem. Typically there is insufficient space on a compute node's local filesystem for this.

Note: Virtual Machines should not be enabled for "kdump".
For further information on setting up a virtual machine to capture a core dump, refer to "How To Automatically Generate A Memory Dump When A DomU VM Guest Crashes (Doc ID 1167163.1)"
See also "Oracle VM: Configuring on_crash Parameter for UEK 4.14.35-1950.el7uek.x86_64 or Higher (Doc ID 2735567.1)"


There are a number of ways to resolve this, using either an external ZFS Storage Appliance (ZFSSA), or the internal ZFSSA that is part of the PCA.

For external storage, the options are:

External storage options are not discussed further in this document.

For the internal ZFSSA appliance - which is a core component of the PCA - the options are:


This document focuses on provisioning for core dumps on the internal ZFSSA appliance.

 

For information:
PCA systems on hardware prior to X8 use Infiniband to acccess the internal storage.
PCA systems on X8 or later hardware use Ethernet to acccess the internal storage.

 

Solution

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