SRM – Array Based Replication vs vSphere Replication

  Parameter Array-Based Replication vSphere Replication RPO min/max 0 up to max supported by vendor 15 mins to 24 hours Scale Scales up to 5,000 VMs protected/2,000 simultaneously Scales up to 2,000 VMs (protected & recoverable) per recoverable per vCenter/SRM pair vCenter/SRM pair Write order fidelity Supports write order fidelity within and across multiple VMs…

Restarting the Management agents on an ESXi or ESX host

Reason: Cannot connect ESXi/ESX to VirtualCenter/vCenter Server Cannot connect directly to the ESXi/ESX host from the VMware Infrastructure Client / vSphere Client Cannot stop or start a virtual machine A virtual machine is shown as running in vCenter Server when it is not vCenter Server displays the error:Virtual machine creation may fail because agent is…

Network Adapter types for Virtual Machine

Vlance: This is an emulated version of the AMD 79C970 PCnet32- LANCE NIC, and it is an older 10 Mbps NIC with drivers available in most 32-bit guest operating systems except Windows Vista and later. A virtual machine configured with this network adapter can use its network immediately. VMXNET: The VMXNET virtual network adapter has…

Cisco Discovery Protocol

Cisco Discovery Protocol Cisco Discovery Protocol (CDP) allows ESX administrators to determine which Cisco switch port is connected to a given vSwitch. When CDP is enabled for a particular vSwitch, you can view properties of the Cisco switch (such as device ID, software version, and timeout) from the vSphere Client. Enable CDP on an ESX…

Introduction to Virtualization

Virtualization is the process of creating virtual versions of physical components,such as servers, storage devices and network devices. Virtualization servers as an effective way to reduce IT expenses while boosting efficiency and agility-not just for large enterprises, but also for small and midsize businesses. With Virtualization, you can run multiple operating systems and applications on…

Pre-requisites for VSAN Deployment

Pre-requisites for VSAN Deployment 4 (optionally 5) hosts as per the VMware Compatibility Guide with vSphere 5.5 Update 1 installed. 4 hosts must contain local storage. Local storage must comprise of at least one empty HDD & one empty SSD, and must be supported by VSAN as per the VMware Compatibility Guide. The 4 hosts…

How to deploy OVF Template

How to deploy OVF Template Login to the vSphere Client and click on File and select Deploy OVF Template. It will prompts “browse to the path containing the OVA file.” and select the path where OVA exists. The OVF template details will shown in the next window. Accept the agreement, then click Next. Give the…

Adding vSphere Management Assistant to Active Directory

Adding vSphere Management Assistant to Active Directory: All commands are case-sensitive. Run the sudo domainjoin-cli join command to join the vSphere Management Assistant instance to the class AD domain. sudo domainjoin-cli join domain_name domain_username You must replace domain_name with the AD domain name and domain_username with the AD domain user name. When prompted for the…

Duplicate MAC Addresses of Virtual Machines on the Same Network

Duplicate MAC Addresses of Virtual Machines on the Same Network You encounter loss of packets and connectivity because virtual machines have duplicate MAC addresses generated by vCenter Server. Problem The MAC addresses of virtual machines on the same broadcast domain or IP subnet are in conflict, or vCenter Server generates a duplicate MAC address for…

Location of vCenter Server Logs

Location of vCenter Server Logs: The vCenter Server log files are on the vCenter Server system: •      Location for vCenter Server on Windows 2008/2012: – %ALLUSERSPROFILE%\VMWare\vCenterServer\logs •     Location for VMware vCenterTM Server ApplianceTM: – /var/log/vmware/ Subdirectories exist for vCenter Server components, such as vCenter Service, VMware vCenterTM Single Sign-OnTM, vCenter Inventory…