VMware Software Interview Questions, Process, and Tips

Prerequisites for VMotion include network configuration, CPU compatibility, shared storage, and virtual switch restrictions.

• ESX Servers must have VMkernel ports enabled for VMotion on the same network segment

• ESX Servers must be managed by the same Virtual Center server

• ESX Servers must have compatible CPUs

• ESX Servers must have consistent networks and network labels

• VMs must be stored on shared storage like iSCSI, FC SAN,...read more

VMware HA allows for a maximum of 4 host failures within a cluster. If a 5th host fails, VMs may not restart depending on admission control settings.

• Maximum allowed host failures within a HA cluster is 4

• If a 5th host fails and admission control is enabled, some VMs may not restart due to resource constraints

• If admission control is disabled, VMs will restart on any remaining host but may not be functional

• Ensure enough p...read more

Prerequisites for HA clusters in VMware environment

• Virtual machines and configuration files must be on shared storage

• Console network should have redundant network paths for reliable failure detection

• Hosts in cluster must be part of a VMotion network for DRS with HA

Prerequisites for VC and Update Manager

• VC (Virtual Center) requires a Windows Server OS and a supported database server

• Update Manager requires vCenter Server and a Windows Server OS

• Both require compatible hardware and software versions

To configure the new LUN in VC, I will follow the given steps and set the block size based on the volume size.

• Add the new LUN to the storage array

• Rescan the storage adapters in vSphere Client

• Create a new datastore using the new LUN ID

• Set the block size based on the volume size (e.g. 1MB for 500GB volume size)

Adding a new VLAN to a production network involves several steps and enabling it requires configuration changes.

• Plan the new VLAN configuration including VLAN ID, subnet, and gateway.

• Configure the switch or router to create the new VLAN.

• Assign ports to the new VLAN as needed.

• Enable routing between the new VLAN and other VLANs if required.

• Test the new VLAN to ensure connectivity and functionality.

• Examples: VLAN 20 with ...read more

Connecting ESX host through VC and vSphere involves different services and port numbers.

• Connecting ESX host through VC involves vCenter Server which provides centralized management and monitoring.

• Connecting ESX host through vSphere involves vCenter Server along with additional services like vSphere Client and vSphere Web Client.

• Some of the services involved in connecting ESX host through VC and vSphere include vCenter ...read more

FTP (File Transfer Protocol) is a standard network protocol used for transferring files between a client and a server.

• FTP works by establishing a connection between a client and a server, allowing the client to upload or download files.

• Prerequisites for using FTP include a client FTP software, a server with FTP capabilities, and valid credentials for accessing the server.

• The default port used for FTP is 21, but it can ...read more