May 06, 2014

FAT ,FAT32,exFAT Supports Windows server 2012 or Not

FAT, FAT32, and exFAT do not support the enhanced features. When you use Check Disk with FAT, FAT32, or exFAT, Windows Server 2012 R2 uses the legacy scan and repair process. This means the scan and repair process typically requires taking the volume offline and preventing it from being used. You can’t use Check Disk with ReFS.

commands to Check HDD Errors on Server 2012

chkdsk /scan C:
chkdsk /spotfix E:

What is Difference between VMware ESX and ESXi

VMware ESX or ESXi Differences: 

The platform upon which VMs run. The main difference between ESX and ESXi is that ESX uses a Service Console (SC) as its management arm, whereas ESXi has no Service Console and has a smaller footprint of just 32MB. 

What is the Difference Between .vmx and .vmdk files

Virtual machines using VMware technology have two main file extensions:


  1.  .vmx: This file contains all the configurations that make up a particular VM, such as how many virtual processors are allocated, how much memory is reserved, the path to the hard drive, and any additional components that are configured for this VM.

  2. .vmdk: This file is the physical hard drive equivalent. It holds the file system, the operating system, and any applications or software loaded on this VM.

VMware’s file extension for VMs is known as VMDK, whereas Microsoft and Citrix for instance have the file extension as VHD. Hopefully one day, an industry standard will emerge, which would then allow for VMs to be run on any hypervisor.

Types of Virtualizations

The different forms of virtualization can be categorized as follows:


  •  Hypervisor type-1 virtualization is what ESX and ESXi are. This type of operating system virtualization installs a thin layer of software known as the hypervisor, or the virtualization layer, on bare metal.

  •  Hypervisor type-2 virtualization, you have an underlying operating system loaded on the physical machine and then you install software that allows virtual machines to be created and run. Examples include VMware Workstation, VMware Server, Microsoft Virtual PC, and Microsoft Virtual Servers

Creating a storage pool

Creating a storage pool
Storage pools allow you to pool available space on disks so that units of storage (virtual disks) can be allocated from this pool. To create a storage pool, you must have at least one unused disk and a storage subsystem to manage it. This storage subsystem can be the one included with the Storage Spaces feature or a subsystem associated with attached storage.

When a computer has extra hard drives in addition to the hard drive on which Windows is installed, you can allocate one or more of the additional drives to a storage pool. However, keep in mind that if you use a formatted drive with a storage pool, Windows permanently deletes all the files on that drive. Additionally, it’s important to point out that physical disks with the MBR partition style are converted automatically to the GPT partition style when you add them to a storage pool and create volumes on them.
Each physical disk allocated to the pool can be handled in one of three ways:
As a data store that is available for use
As a data store that can be manually allocated for use
As a hot spare in case a disk in the pool fails or is removed from the subsystem