In this section:


This section describes SBC SWe hardware and software requirements and recommendations.

To install and configure SBC SWe, make sure the Virtual Machine (VM) host meets the following recommended hardware, server platform and software requirements.

Warning

The recommended hardware and software settings are intended to ensure optimum SBC SWe stability and performance. If the recommended settings are not used, the SBC SWe system may not behave as expected.

SBC SWe for KVM Hypervisor – Server Hardware Requirements


The following table lists the server hardware requirements.

KVM Hypervisor Server Hardware Requirements


Configuration Requirement
Processor

Intel Xeon processors (Nehalem micro-architecture or above) with 6 cores and above (processors should support hyper threading).

Note

Ribbon recommends using Westmere (or newer) processors for better SRTP performance. These processors have the AES-NI instruction set for performing cryptographic operations in hardware.

Note

The supported CPU Family number is 6 and CPU Model number must be newer than 26. Refer to the Intel Architecture and Processor Identification document for more information.


 RAMMinimum 24 GB
Hard DiskMinimum 500 GB
Network Interface Cards (NICs)
Minimum 4 NICs
Note

Make sure NICs have multi-queue support which enhances network performance by allowing RX and TX queues to scale with the number of CPUs on multi-processor systems.

Note

The Intel I350, x540, x550, and 82599 Ethernet adapters are supported for configuring as SR-IOV and DirectPath I/O pass-through devices.


Ports

Number of ports allowed:


Warning

The SBC SWe software runs only on platforms using Intel processors. Platforms using AMD processors are not supported.

BIOS Setting Recommendations

Ribbon recommends the following BIOS settings for optimum performance:

Recommended BIOS Settings for Optimum Performance

BIOS ParameterRecommended
Setting		Details
Intel VT-x (Virtualization Technology)EnabledFor hardware virtualization
Intel Hyper-ThreadingEnabled
Intel Turbo BoostEnabled
CPU Power ManagementMaximum Performance
Note

Disable Sub-NUMA Clustering for servers that provide it as an option in BIOS.

For example, the BIOS settings shown below are recommended for HP DL380p Gen8 servers. For BIOS settings of other servers, refer to the respective vendor's website.

BIOS Setting Recommendations for HP DL380p Gen8 Servers

BIOS ParameterRecommended
Setting		Default Value
HP Power ProfileMaximum PerformanceBalanced Power and Performance
Thermal ConfigurationMaximum CoolingOptimal Cooling
HW PrefetchersDisabledEnabled
Adjacent Sector PrefetcherDisabledEnabled
Processor Power and Utilization MonitoringDisabledEnabled
Memory Pre-Failure NotificationDisabledEnabled
Memory Refresh Rate1x Refresh2x Refresh


SBC SWe for KVM Hypervisor – Software Requirements

The following are SBC SWe requirements for a KVM hypervisor environment:

KVM Requirements

SoftwareVersionTested or Qualified Version
KVM Module 3.10.0 or above3.10.0
QEMU Emulator  1.5.31.5.3
libvirtd (libvirt)1.1.11.1.1
virt-manager0.10.00.10.0

Downloading the SBC SWe Software Package

For more information, see Downloading the SBC SWe Software Package.

Note

Ensure Processors and VM configuration (CPUs, RAM, Virtual Hard Disk, NICs, and Bridge settings) are identical for an SBC SWe HA pair.

Note

Do not change BIOS settings once they are applied on the server.

KVM Configuration Recommendations 


KVM Configuration Recommendations


 vCPU

Minimum 4 vCPUs required. Any number of vCPUs may be configured depending upon the call capacity requirements, but the number should be even (4, 6, 8, etc.) to avoid impacting performance.  

 vRAM

Reserve the memory based on call capacity and configuration requirements. Refer to benchmarking data for supported call capacities with different configuration limits.

Virtual Hard DiskSet Hard Disk (virtual) size as 100 GB or more (based on requirements of retaining CDRs, logs, and so on, for number of days).

Note: You cannot change the hard disk size after the SBC SWe software is installed.

vNICs

Set number of virtual NICs as 4 (1-MGMT, 1-HA, 1-PKT0 and 1-PKT1).

  • Use Virt-IO drivers only for MGMT and HA. VIRT-IO interfaces are not recommended for higher call loads.
  • For PKT0 and PKT1 the driver to use depends on the parallel sessions to support - it is either VIRT-IO or SR-IOV.
  • Associate each vNIC to separate bridges.



Note
  • Ensure Processors, KVM hypervisor version and VM configuration (vCPUs, vRAM, Virtual Hard Disk, vNICs, and vSwitch Settings) are identical for an SBC SWe HA pair.
  • Do not change BIOS and KVM hypervisor settings and recommendations once they are applied on the server.

Note

To configure VLAN on SRIOV and PCI Passthrough Ethernet interfaces, disable the Data Center Bridging (DCB) on the switch connected to the interfaces.