Question
How to fix GRUB parameters?
Solution
This article explains the method to fix GRUB parameters in Versa FlexVNF 16.1R1 S1/15.2R4 S6 and earlier releases.
Fixing GRUB parameters is necessary for the proper functioning of Versa FlexVNF.
NOTE: Use the "vsh fixgrub" for Release 20.2.2 or below.
The Versa FlexVNF qcow2 and OVA images are generated with standard configuration of 4 CPUs and 4 GB RAM on the system, which supports 1G huge pages. You are allowed to deploy these images with different virtual hardware configurations. For example, qocw2/OVA is deployed with 8 vCPUs and 16 GB RAM. In this case, Versa FlexVNF will keep restarting.
Follow these steps to fix GRUB parameters:
- Run the fixgrub.sh file using this script:
sudo ./fixgrub.sh
The script reboots the device after updating the GRUB parameters.
- Reboot the device.
Result: GRUB parameters are fixed and Versa FlexVNF starts successfully.
Configuration for Virtual Deployment
Follow these recommendations to configure the virtual deployment:
- Minimum number of NICs: 2
- Socket: Single socket
NOTE: Avoid multiple sockets.
- Supported NIC drivers: vmxnet3 and virtio
- Preferred NIC drivers: vmxnet3 for ESXi and virtio for KVM
| Number of vCPUs | Memory |
|---|---|
| 4 | 8 GB |
| 8 | 16 GB |
| >12 | 32 GB |
Reference
Refer to article for more information on hugepages.