Intermittent connectivity issues for Linux VMs connected to Nutanix Volumes can often be attributed to SCSI timeout settings. Windows VMs may have different default settings that are more forgiving under latency or connectivity issues.
* SCSI Timeout: Adjusting the SCSI timeout value on Linux VMs ensures that temporary disruptions in connectivity do not result in immediate I/O errors. A longer timeout period allows the system to recover from transient issues without impacting the VM's operation.
* Separate Subnet: Using separate subnets is more relevant for network traffic isolation and may not directly address the SCSI timeout-related issues.
* Additional Disks: Adding more disks can help with capacity and IOPS but is unlikely to resolve intermittent connectivity issues.
* Jumbo Frames: Utilizing jumbo frames can enhance network performance but typically requires end-to-end support and configuration, which may not directly address the connectivity issues.
By setting the SCSI timeout value to 60, the Linux VMs will be able to handle transient connectivity issues more gracefully, reducing the impact on performance and stability.
References:
* Nutanix Bible, Best Practices for VM Configuration.
* Nutanix-NDB-User-Guide, Configuring VM settings for connectivity.