5 Essential Tips for Maximizing Your Experience at Nutanix .NEXT for Bloggers
AHV uses Open vSwitch (OVS) to connect the CVM, the hypervisor, and guest VMs to each other and to the physical network. Open vSwitch: OVS is an open source software switch implemented in the Linux kernel and designed to work in a multiserver virtualization environment. By default, OVS behaves like a layer-2 learning switch that maintains a MAC address table. Bridges Bridges act as virtual switches to manage network traffic between physical and virtual network interfaces. The default AHV configuration includes an OVS bridge called br0 and a native Linux bridge called virbr0 Ports Ports are logical constructs created in a bridge that represent connectivity to the virtual switch BondsBonded ports aggregate the physical interfaces on the AHV host. By default, a bond named br0-up is created in bridge br0 VLANs for AHV Hosts and CVMs The recommended VLAN configuration is to place the CVM and AHV in the default “untagged” (or native) VLAN, as shown belo
Prism Central allows you to configure syslog monitoring which forwards system logs(API Audit, Audit and Flow logs) from the registered clusters to an external syslog server There are some consideration we need to be aware of: As the logs are forwarded form Controller VM(CVM). It displays IP address of CVM We can only configure one rsyslog server Protocols which are supported are TCP and UDP Logs can also be forwarded to a remote syslog server using Reliable Event Logging Protocol (RELP). Configuration of the syslog server is very simple. Login to Prim Central and go to settings 2.click syslog server 3. Add the external syslog server name, IP address and port 4. All the registered clusters will now forward logs to syslog server For more details on syslog please refer following documents https://portal.nutanix.com/page/documents/details/?targetId=Prism-Central-Guide-Prism-v5_16%3Amul-syslog-server-configure-pc-t.html
Logbay is a tool which helps in collecting logs sees fewer CVM/PCVM (Controller VM/PC VM) resources, such as CPU, memory, system partition /home disk space, and disk IO Easier and more flexible to use via cli, including for targeted time-windows or specific components Backward compatibility Logbay is supported from AOS 5.5.7 through 5.5.z, and from 5.9 and higher. AOS 5.5 through 5.5.6 requires the use of log_collector. Logbay is not supported with EOL versions of AOS and PC. By logging into any of the CVM we can run the log collector and collect logs for specific day, time and duration Check cluster time using following command $CVM: date Run the logbay command $CVM: logbay collect --from=2019/04/09-14:00:00 --duration=+6h15m Change the day,time and duration according to the requirement If no flags are given it will collect logs for last 4 hours The logs will be collected from each CVM and will be stored in $CVM:/home/nutanix/
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