Supported host systems

The Lenovo XClarity Administrator management appliance runs in a virtual machine on a host system.

Hypervisor requirements

The following hypervisors are supported for installing XClarity Administrator:
  • Citrix XenServer v7.6
  • CentOS 7 and 81
  • Microsoft Windows Server 2019 with Hyper-V installed
  • Microsoft Windows Server 2016 with Hyper-V installed
  • Microsoft Windows Server 2012 R2 with Hyper-V installed
  • Microsoft Windows Server 2012 with Hyper-V installed
  • Nutanix Acropolis Hypervisor (AHV)
  • Red Hat v8.x with Kernel-based Virtual Machine (KVM) v2.12.0 installed
  • Red Hat v7.x with KVM v1.2.17 installed
  • VMware ESXi 7.0
  • VMware ESXi 6.7, U1, U22, and U3
  • VMware ESXi 6.5, U1 and U2
  • VMware ESXi 6.0, U1, U2, and U3
  • VMware ESXi 5.5, U1, U2, and U3
  • VMware ESXi 5.1, U1, U2, and U3
  1. CentOS Linux is no longer updated by Red Hat. Consider migrating to Red Hat Enterprise Linux instead (see the Red Hat: How to convert from CentOS or Oracle Linux to RHEL webpage).

  2. For VMware ESXi 6.7 U2, you must use the ISO image VMware-ESXi-6.7.0.update02-13981272-LNV-20190630.iso or later).

For VMware and Citrix, the virtual machine is available as an OVF template. For Hyper-V and Nutanix AHV, the virtual machine is a virtual-disk image (VHD). For CentOS and KVM, the virtual machine is available as qcow2 format.

Important: For Hyper-V environments that run on Linux guests with a 2.6 kernel base and that use large amounts of memory for the virtual appliance, you must disable the use of non-uniform memory access (NUMA) on the Hyper-V Settings Panel from Hyper-V Manager. Changing this setting requires you to restart the Hyper-V service, which also restarts all running virtual machines. If this setting is not disabled, XClarity Administrator virtual appliance might experience problems during initial startup.

Hardware requirements

The following minimum requirements must be met for the virtual machine. Depending on the size of your environment and your use of Configuration Patterns, additional resources might be required for optimal performance.
  • Two virtual microprocessors
  • 8 GB of memory
  • 192 GB of storage for use by the XClarity Administrator virtual appliance.
  • Display with a minimum resolution of 1024 pixels in width (XGA)
The following table lists the minimum recommended virtual-machine configurations for a given number of devices. Keep in mind that if you run the minimum configuration, you might experience longer than expected completion times for management tasks. For provisioning tasks such as operating system deployment, firmware updates, and server configuration, you might need to increase the VM resources temporarily.
Number of Managed Devices Virtual CPU/Memory Configuration
0 - 100 devices 2 vCPUs, 8 GB RAM
100 - 200 devices 4 vCPUs, 10 GB RAM
200 - 400 devices 6 vCPUs, 12 GB RAM
400 - 600 devices 8 vCPUs, 16 GB RAM
600 - 800 devices 10 vCPUs, 20 GB RAM
800 – 1,000 devices 12 vCPUs, 24 GB RAM
  • A single XClarity Administrator instance can support a maximum of 1,000 devices.

  • For the latest recommendations and additional performance considerations, see the XClarity Administrator: Performance Guide (White paper).

  • Depending on the size of your managed environment and the pattern of use in your installation, you might need to add resources to maintain acceptable performance. If you frequently see processor usage in the system resources dashboard displaying high or very high values, consider adding 1-2 virtual processor cores. If your memory usage persists above 80% at idle, consider adding 1-2 GB of RAM. If your system is responsive at a configuration as defined in the table, consider running the VM for a longer period to assess system performance.

  • For information about how to free up disk space by deleting XClarity Administrator resources that are no longer needed, see Managing disk space.

Software requirements

A Network Time Protocol (NTP) server is required to ensure that timestamps for all events and alerts that are received from managed devices are synchronized with XClarity Administrator. Ensure that the NTP server is accessible over the management network (typically the Eth0 interface).

If you choose to use an external authentication server, only Microsoft Active Directory running on Windows Server 2008 or later is supported.

If you choose to use an SAML identify provider, only Microsoft Active Directory Federation Services (AD FS) versions 2.0 or later running on Windows Server 2012 is supported.

Tip: Consider using the host system on which XClarity Administrator is installed as the NTP server. If you do, ensure that the host system is accessible over the management network.
Restriction: If the host system on which XClarity Administrator is installed is a managed compute node, you cannot use XClarity Administrator to apply firmware updates to that host system or to the entire chassis at one time. When firmware updates are applied to the host system, the host system must be restarted. Restarting the host system also restarts XClarity Administrator, making XClarity Administrator unavailable to complete the updates on the host system.