Table of Contents

• How-to
  • Modify EBS Volume
  • Enable ENA on Ubuntu
• Topics
  • Key Pairs
  • Status Checks
  • Enhanced Networking on Linux

How-to

Modify EBS Volume

1. Do Actions -> Modify Volume.
2. Change settings, like size.
3. Run sudo resize2fs /dev/xvda1 to resize the running file system

Enable ENA on Ubuntu

Topics

Key Pairs

Fingerprint

• Created the key pair using AWS: the fingerprint is calculated using SHA-1
• Imported a public key: the fingerprint is calculated using MD5

Status Checks

System Status Checks

require AWS involvement to repair. (…) wait for AWS to fix the issue, or you can resolve it yourself. (by stopping and starting an instance, or by terminating and replacing an instance).

• Loss of network connectivity
• Loss of system power
• Software issues on the physical host
• Hardware issues on the physical host that impact network reachability

Instance Status Checks

require your involvement to repair. (…) (by rebooting the instance or by making instance configuration changes).

• Failed system status checks
• Incorrect networking or startup configuration
• Exhausted memory
• Corrupted file system
• Incompatible kernel

Enhanced Networking on Linux

Single-root IO virtualization(SR-IOV)

• SR-IOV is a network interface that allows the isolation of the PCI Express resources for manageability and performance reasons.
• Reduces CPU utilization for processing network traffic
• Reduces latency path
• Increases throughput