Virtualization

Definition in simple terms referring to practical understanding: Process of separating physical components of computing infrastructure from the logical components that demand the resources. Types of Virtualization: Server :  Where you use Virtual machines to separate hardware from virtual operating systems, allowing you to run the multiple operating systems on a single machine, all at the same time. Storage:  Removing physical mapping of storage and moving storage into logical objects, which can be easily managed Network: process of combining hardware and software network resources and network functionality into a single, software-based administrative entity, a virtual network. There two types of […]

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PXE booting to RIS servers after migrating to WDS PXE in VM infrastructure

1.       Create a new VDI with a.       Latest NIC VMXNET3, you need latest version in order to boot to WDS server.  The default NIC ‘Flexible’ doesn’t work b.      Use SCSI controller of BUS logic. None of the latest LSI logic SCSI controller work with RIS builds 2.       Boot the VDI to Win7 build 3.       Have a computer account created with all the required options (through pre-setup.bat) 4.       Change the netbootMachineFilePath attribute to point to RIS build servers (say buildserver1.org.com). a.       AD object ‘Attribute Editor’ tab is not visible via dsa.msc, use adsiedit instead. b.      Move computer to respective AD site […]

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Let’s troubleshoot VMware

Scenario#1: Logon to Virtual Center Server Fails with generic error “Unable to connect to remote server” Isolate if it’s a Networking issue adfind – Ensure the server name is typed correctly and is a valid Windows server in AD using adfind ping – Ensure the remote vCenter server is reachable using ping nslookup – Ensure the DNS entries are correct for the server by doing a nslo0kup FQDN – use FQDN JIC if some DNS Zones entries issues is around causing the network connectivity Isolate if it’s a Windows server issue telnet to 443 – Check the connectivity to the […]

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