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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 JULY 11, 2023

Applies to:

Private Cloud Appliance - Version 2.0.1 and later
Private Cloud Appliance X8-2
Private Cloud Appliance X5-2 Hardware
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, or the internal ZFS storage appliance 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 ZFS appliance - which is a core component of the PCA - the options are:


This document focuses on provisioning for core dumps on the internal ZFS 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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