Hardware and software requirements

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The following information provides a consolidated view of the hardware and software requirements for your IBM® Power® Virtualization Center environment.

It is recommended that the software and firmware is at the latest levels.
Notes:
  • Accounts that are used with PowerVC must be configured to use the Bash shell.
  • Make sure that the version of RSCT installed must have the latest fixes applied.
  • Support for software-defined networking has been withdrawn.

Hosts

Table 1. Hardware and operating system requirements for PowerVC hosts.
Host type Supported hardware Supported operating systems
PowerVC management server

ppc64le and x86_64

For POWER8®, POWER9™, and POWER10 - RHEL 8.6, RHEL 8.8, RHEL 9.0, RHEL 9.2, SLES 15 SP3, SLES 15 SP3 SAP Edition

For x86_64 - RHEL 8.6, RHEL 8.8, RHEL 9.0,and RHEL 9.2

Make sure you install the following RHEL editions.
  • RHEL 8.6, 8.8, 9.0, or 9.2 - Server edition
  • RHEL 8.6, 8.8, 9.0, or 9.2 - Server with GUI edition
Notes:
  • Legacy install is supported only on RHEL 8.6 (x86_64 and ppc64le) and later, SLES 15 SP3 (ppc64le), and SLES 15 SP3 SAP Edition.
  • All PowerVC nodes must have the same configurations - operating systems, CPU , memory, etc.
  • Support for PowerVC installation on ppc64BE architecture is being withdrawn.
Managed hosts
IBM POWER8 or later processor classes.
  • Includes all form factors, such as chassis, rack, blade, and Power Flex.
  • All other PowerVC requirements apply, including storage, networking, guests, and so on.
  • Managed hosts should have a minimum of 4 cores and 8 GB of memory.
For more information about the supported guest operating system levels for deployed virtual machines, see Guest operating system support.
Notes:
  • You can manage an HMC host that has a shared memory pool. However, PowerVC does not support deploying or importing a virtual machine that uses shared memory.
  • You can manage a host that is part of Power Enterprise Pool 2.0. PowerVC does not support deploying, migrating, resizing, or remote restart operations for virtual machines with dedicated processors on these hosts. However, you can perform rest of the virtual machine life-cycle operations. Later when you manage the host through a different HMC, the host continues to have the Power Enterprise Pool 2.0 property enabled.
The following information describes the minimum and recommended resources required for PowerVC virtual machines. In the table, the meaning of the Processor capacity column depends on the type of host that is being used as the PowerVC management server.
  • If the PowerVC management server is PowerVM®, Processor capacity refers to either the number of processing units of entitled capacity or the number of dedicated processors.
  • If the PowerVC management server is x86 Processor capacity refers to the number of physical cores.
Table 2. Minimum space and processor requirements for PowerVC management server - Up to 5 hosts, 2 storage providers, and 2 fabrics
  Recommended  
Number of managed virtual machines or volumes (whichever is larger) Up to 500 501-1000 1001-2000 2001-3000 3001-6000  
Processor capacity 2 4 8 8 12  
Virtual CPUs1 2 4 8 8 12  
Memory (GB) 32 35 40 45 55  
Note: Allocate the swap space according to the OS recommendations.
Disk used (GB) 100 120 140 160 180  
CPU (MHz) x86: 2000ppc64le: 2500          

1: These can be shared or dedicated.

2: In a case where monitoring is enabled, ensure that sufficient memory and swap space are available along with proportionate changes for other resources as well.

  
Table 3. Minimum space and processor requirements for PowerVC management server - More than 5 hosts2, 2 storage providers, and 2 fabrics
  Recommended
Number of managed virtual machines or volumes (whichever is larger) Up to 500 501-1000 1001-2000 2001-3000 3001-6000 6001-10000
Processor capacity 2 4 8 8 12 12
Virtual CPUs1 2 4 8 8 12 12
Memory (GB) 50 60 75 80 85 100
Note: Allocate the swap space according to the OS recommendations.
Disk used (GB) 100 120 140 160 180 200
CPU (MHz) x86: 2000ppc64le: 2500          

1: These can be shared or dedicated.

2: You can scale up to 50 HMC and 60 NovaLink hosts and the memory requirement can vary based on host, storage and fabric combination.

  
Note: For larger environments or to minimize the "noisy neighbor" effect, you should consider using dedicated processors.
PowerVC has the following space requirements:
  • /tmp: 250 MB
  • /usr: 3.5 GiB
  • /opt: 15 GiB
  • /srv: 2 GiB
  • /var: 3 GiB
It is recommended that 20% of the disk space is assigned to /var.
Note: The values given for space requirements might differ because the powervc-diag generated log archive size depends on the following parameters
  • Number of HMC or NovaLink managed hosts
  • Duration of PowerVC run time
  • Size of each log file that powervc-diag collects

OpenStack release

PowerVC version 2.2.0 is built on OpenStack Yoga release.

PowerVC backup node OS support

Both PowerVC controller node and backup node must have the same OS version. For supported OS version details, see Hosts.

Compute plane nodes

Compute plane node is supported on RHEL and SLES operating systems. OS version support for Compute planes is same as the PowerVC management node. For supported OS version details, see Hosts. Minimum memory and processor requirements for Compute plane nodes are 20 GiB and 2 CPU cores respectively.
Notes:
  • For Compute plane node on any supported RHEL version, make sure that the CRB repo is enabled to prevent registration failure.
  • If PowerVC environment is created with repo_subscription as false during inventory creation, High Availability repo or an equivalent repo that has pacemaker-remote packages must be enabled manually for CPN registration.
  • Disable IPv6 on Compute plane node.
Table 4. Node-specific scalability matrix
PowerVC installation type Hosts without Compute plane node Hosts with Compute plane node*
Single node 30 45
Multinode (3-node) 45 75

* Two Compute plane nodes are recommended for high availability.

Guest operating system support

This table lists the support for virtual machine operating systems on managed hosts.
Table 5. Guest operating system support
Operating system Little endian (LE) or big endian (BE) Version
AIX® BE

7.1 TL0, SP0

7.2 TL0, SP0

7.3 TL0, SP0

Note: For secure boot, 7.2 TL3 on POWER9 with firmware 920 and later with latest fixes.
IBM i BE

7.3 TR3

7.4

Version 7.2 TR8, 7.3 TR4 is required for POWER9 and later

7.5
RHEL LE

7.9

8.x

9.0, 9.2
SLES LE 12 and 15

SLES 15 SP2, SLES 15 SP3, and SLES 15 SP4 SAP Edition
Ubuntu LE

18.04, 20.04
CoreOS NA Supported

Hardware Management Console

Table 6. HMC requirements
Item Requirement
Software level
PowerVC supports the following HMC releases:
  • V9.2.953
  • V10.1.1020
  • V10.2.1030
  • V10.2.1040
  • V10.3.1050
Note: For supported HMC hardware levels, see Recommended Fixes - HMC Code Upgrades.

PowerVM NovaLink

NovaLink version 2.2.0 is supported on RHEL 8.6 EUS, RHEL 8.8, RHEL 9.0 EUS, RHEL 9.2, and Ubuntu 20.4 is supported.
Note: For RHEL 9.x, make sure that the CRB repo is enabled.
For further details, see the NovaLink hardware and software requirements page.
The amount of memory needed by one NovaLink partition depends on how many virtual machines it is going to host:
Table 7. Amount of memory needed for one NovaLink partition
Number of virtual machines Up to 250 251-500 More than 500
RHEL 8.6 EUS, RHEL 8.8, RHEL 9.0 EUS, and RHEL 9.2. - Memory needed in a standard environment (GB) 8 14 18

Virtual I/O Server

Notes:
  • PowerVC does not install or configure third-party software on the Virtual I/O Server (VIOS).  Any third-party software that you want to use for VIOS resources must be installed and configured on the VIOS before managing it with PowerVC.
  • A minimum of 6GB memory is required for VIOS 3.1.x.

For VIOS sizing requirements when using SR-IOV, see IBM PowerVM Best Practices.

Table 8. Supported virtualization platforms.
Platform Requirement
Virtual I/O Server (VIOS)
  • Version 3.1.2
  • Version 3.1.3
  • Version 3.1.4
  • Version 4.1.0

Network

Table 9. Supported network hardware and software
Item Requirement
Network switches PowerVC does not manage network switches, but supports network configurations that use VLAN-capable switches.
Virtual networks Supports Shared Ethernet Adapters for virtual machine networking.

Supports SR-IOV based vNICs on PowerVM .
IPv6 IPv6 is supported for the AIX 7.2 and 7.3 Guest OS only.

PowerVC can be installed on a system with IPv4 stack. PowerVC uses the default network interface, eth0. To use a different network interface, set the HOST_INTERFACE environment variable before running the install script. Otherwise, the installer auto-selects eth0 and uses whichever stack is set up for that interface. As long as connectivity exists, hosts and storage of either type can be registered and managed with PowerVC. That is, PowerVC can communicate with hosts and storage over IPv4 addresses.

Notes:
  • PowerVC version 2.2.0 does not support IPv6 on the management node.
  • Make sure that the management system has DNS properly configured so that hostname and management IP are resolvable. You can check /etc/resolv.conf file whether correct DNS server information is provided and it is functional. If the hostname resolution does not happen, you can resolve it locally by mentioning the hostname and IP mapping in the /etc/hosts file as below:
    x.x.x.x hostname short_hostname
Table 10. Types of networking supported on PowerVC
IPv4 Support
Management Server Virtual Machine deployed by PowerVC
Yes Yes

Fabrics

PowerVC supports up to 25 fabrics.
Table 11. Supported fabric drivers
Supported Driver Documentation
Brocade Brocade zone driver system requirements
Virtual fabric support is included.
Note: Brocade zone OpenStack driver for Wallaby release is supported for PowerVC.
Cisco Cisco Fibre Channel Zone Driver

VSAN support is included.
Pluggable A pluggable fabric is an OpenStack supported fabric. Any fabric supported by an OpenStack driver can be registered with PowerVC, but the level of functionality that it has within PowerVC depends on the driver. See Planning for storage for details.
Note: PowerVC supports calling the pluggable driver function, but not the driver itself. Issues traced back to a pluggable driver or underlying device will be referred to the device vendor.

Storage drivers

Some storage drivers support different devices depending on the OpenStack release.

Table 12. Supported storage drivers
Supported Driver   Documentation
IBM Storwize® family

IBM SVC

  IBM Storwize family and SVC volume driver

IBM Storwize family overview

Note: Starting 2.0.3 release, PowerVC supports Storwize firmware level 8.5.

IBM Flash System v9000 Overview

For supported models, see OpenStack support summary.
Hitachi   Enterprise Hitachi Block Storage Driver (HBSD) 14.0.0

Supported devices are listed in the Hitachi Block Storage Driver for OpenStack v 14.0.0 Release Notes®.
IBM System Storage® DS8000®   IBM Storage volume driver

For supported models, see OpenStack support summary.
PowerMAX (VMAX)  

Dell EMC VMAX iSCSI and FC drivers

Unisphere for PowerMax 9.2.1 series is required to run Dell EMC PowerMax Cinder driver for the Wallaby release.
Pure Storage   For more information on supported models, see Pure Storage iSCSI and Fibre Channel volume drivers
HPE 3PAR   For more details on supported models, see HPE 3PAR for OpenStack Cinder.
Pluggable   A pluggable storage device is an OpenStack supported storage device. Any storage device supported by an OpenStack driver can be registered with PowerVC, but the level of functionality that it has within PowerVC depends on the driver. See Planning for storage for details.
Note: PowerVC supports calling the pluggable driver function, but not the driver itself. Issues traced back to a pluggable driver or underlying device will be referred to the device vendor.
Note: For information about storage support on IBM i, refer to the IBM i POWER® External Storage Support Matrix Summary.

Security

Table 13. Supported security software
Item Requirement More information
Lightweight Directory Access Protocol (LDAP) server (optional) OpenLDAP 2.0 or later OpenLDAP
Microsoft Active Directory 2016 or later Active Directory Domain Services
IBM Security Directory Suite 8.0.1 or later IBM Security Directory Suite

Web browsers

  • Mozilla Firefox version 118.0.1 (64-bit)
    Note: PowerVC does not load if Ask me every time is selected as the custom history setting.
  • Google Chrome version 117.0.5938.150 (64-bit) and latest
  • Microsoft Edge version 117.0.2045.60 (64-bit)
  • Safari version 17.0 (19616.1.27.211.1, 17614) Support available only on Mac
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