AHV

AHV Administration

» Download this section as PDF (opens in a new tab/window)

Command Reference

Description: Show ovs uplinks for local host

manage_ovs show_uplinks

Description: Show ovs uplinks for full cluster

allssh "manage_ovs show_uplinks"
Show OVS interfaces

Description: Show ovs interfaces for local host

manage_ovs show_interfaces

Show interfaces for full cluster

allssh "manage_ovs show_interfaces"
Show OVS switch information

Description: Show switch information

ovs-vsctl show
List OVS bridges

Description: List bridges

ovs-vsctl list br
Show OVS bridge information

Description: Show OVS port information

ovs-vsctl list port br0
ovs-vsctl list port bond
Show OVS interface information

Description: Show interface information

ovs-vsctl list interface br0
Show ports / interfaces on bridge

Description: Show ports on a bridge

ovs-vsctl list-ports br0

Description: Show ifaces on a bridge

ovs-vsctl list-ifaces br0
Add ports to bridge

Description: Add port to bridge

ovs-vsctl add-port bridge port

Description: Add bond port to bridge

ovs-vsctl add-bond bridge port iface
Show OVS bond details

Description: Show bond details

ovs-appctl bond/show bond

Example:

ovs-appctl bond/show bond0
Set bond mode and configure LACP on bond

Description: Enable LACP on ports

ovs-vsctl set port bond lacp=active/passive

Description: Enable on all hosts for bond0

for i in `hostips`;do echo $i; ssh $i source /etc/profile > /dev/null 2>&1; ovs-vsctl set port bond0 lacp=active;done
Show LACP details on bond

Description: Show LACP details

ovs-appctl lacp/show bond
Set bond mode

Description: Set bond mode on ports

ovs-vsctl set port bond bond_mode=active-backup, balance-slb, balance-tcp
Show OpenFlow information

Description: Show OVS openflow details

ovs-ofctl show br0

Description: Show OpenFlow rules

ovs-ofctl dump-flows br0
Get QEMU PIDs and top information

Description: Get QEMU PIDs

ps aux | grep qemu | awk '{print $2}'

Description: Get top metrics for specific PID

top -p PID
Get active Stargate for QEMU processes

Description: Get active Stargates for storage I/O for each QEMU processes

netstat –np | egrep tcp.*qemu

Metrics and Thresholds

More coming soon!

Troubleshooting & Advanced Administration

Check iSCSI Redirector Logs

Description: Check iSCSI Redirector Logs for all hosts

for i in `hostips`; do echo $i; ssh root@$i cat /var/log/iscsi_redirector;done

Example for single host

Ssh root@HOSTIP
Cat /var/log/iscsi_redirector
Monitor CPU steal (stolen CPU)

Description: Monitor CPU steal time (stolen CPU)

Launch top and look for %st (bold below)

Cpu(s):  0.0%us, 0.0%sy,  0.0%ni, 96.4%id,  0.0%wa,  0.0%hi,  0.1%si,  **0.0%st**
Monitor VM network resource stats

Description: Monitor VM resource stats

Launch virt-top

Virt-top

©2025 Nutanix, Inc. All rights reserved. Nutanix, the Nutanix logo and all Nutanix product and service names mentioned are registered trademarks or trademarks of Nutanix, Inc. in the United States and other countries. All other brand names mentioned are for identification purposes only and may be the trademarks of their respective holder(s).