Advanced vSphere HA Options Flashcards
das.isolationaddressX
Provides the addresses to use to test for host isolation when no heartbeats are received from other hosts in the cluster. If this option is not specified (which is the default setting), the management network default gateway is used to test for isolation. To specify multiple addresses, you can set das.isolationaddressX, where X is a number between 0 and 9.
das.usedefaultisolationaddress
Specifies whether to use the default gateway IP address for isolation tests.
das.isolationshutdowntimeout
For scenarios where the host’s isolation response is to shut down, specifies the period of time that the virtual machine is permitted to shut down before the system powers it off.
das.slotmeminmb
Defines the maximum bound on the memory slot size.
das.slotcpuinmhz
Defines the maximum bound on the CPU slot size.
das.vmmemoryminmb
Defines the default memory resource value assigned to a virtual machine whose memory reservation is not specified or is zero. This is used for the Host Failures Cluster Tolerates admission control policy.
das.vmcpuminmhz
Defines the default CPU resource value assigned to a virtual machine whose CPU reservation is not specified or is zero. This is used for the Host Failures Cluster Tolerates admission control policy. If no value is specified, the default of 32 MHz is used.
das.heartbeatdsperhost
Specifies the number of heartbeat datastores required per host. The default is 2. The acceptable values are 2 to 5.
das.config.fdm.isolationPolicyDelaySec
Specifies the number of seconds the system delays before executing the isolation policy after determining that a host is isolated. The minimum is 30. A lower value results in a 30-second delay.
das.respectvmvmantiaffinityrules
Determines whether vSphere HA should enforce VM–VM anti-affinity rules even when DRS is not enabled.
