Operating System Requirements

Operating system requirements vary depending on the specific OS being used.

NOTE

There are also configuration requirements, some of which can vary by OS. See Configuration Requirements.

SLES

HPE Ezmeral Runtime Enterprise runs on the following versions of the SLES Linux operating system:

SLES Linux Enterprise Server v15 SP3
SLES Linux Enterprise Server v15 SP2

For SLES installations:

HPE strongly recommends using only dedicated hosts with clean OS installations on them. Installing HPE Ezmeral Runtime Enterprise on hosts with other running applications can cause unpredictable behavior. To ensure your OS has the latest packages, Hewlett Packard Enterprise recommends performing a zypper update before installation.
Secure boot is not supported.
No other version of this operatng system is supported.

RHEL/CentOS

HPE Ezmeral Runtime Enterprise runs on the versions of RHEL and CentOS described in OS Support.

Hewlett Packard Enterprise strongly recommends using only dedicated hosts with clean OS installations on them. Installing HPE Ezmeral Runtime Enterprise on hosts with other running applications can cause unpredictable behavior. To ensure your OS has the latest packages, Hewlett Packard Enterprise recommends performing a yum update before installation.

Use the standard OS kernel; modifications may cause HPE Ezmeral Runtime Enterprise to function unpredictably.

To minimize the need for troubleshooting, Hewlett Packard Enterprise recommends newer kernel versions.

HPE Ezmeral Runtime Enterprise does not support upgrades between major OS versions. For example, if you are migrating from OS version 6.x to 7.x, you must perform a new installation (not an upgrade), and then install HPE Ezmeral Runtime Enterprise.

RHEL systems must have active, valid subscriptions in order to access the RHEL RPM repositories. See Configuration Requirements.

The Kubernetes RPMs file for air gap installations contains the required RPMs. See Configuring Air Gap Kubernetes Host Settings.

View the full list of RPM repositories from the following links:

RPM list (RHEL-7) (link opens an external website in a new browser tab/window)
RPM list (RHEL-8) (link opens an external website in a new browser tab/window)

HPE Ezmeral Runtime Enterprise has a dependency on the Pacemaker RPM Package, which is used for high availability of the Control Plane.

RHEL 8.x support: In addition to the general requirements for RHEL, the following items apply to RHEL 8.x support:

RHEL 8.x is supported on Kubernetes hosts. For fresh installations only, RHEL 8.x is also supported on HPE Ezmeral Runtime Enterprise control plane (Controller, Shadow, Arbiter, and Gateway) hosts.
Both GPU and non-GPU Kubernetes hosts are supported with RHEL 8.x.
A Kubernetes cluster of mixed RHEL 8.x and RHEL 7.x or CentOS 7.x nodes is not supported.
Firewall is supported only in iptables mode for RHEL 8.x.