What is VMware DRS?

What is VMware DRS?   VMware Distributed Resource Schedule (DRS) VMware DRS dynamically balances computing capacity across a collection of hardware resources aggregated into logical resource pools, continuously monitoring utilization across resource pools and intelligently allocating available resources among the virtual machines based on pre-defined rules that reflect business needs and changing priorities. When a virtual machine experiences an increased load, VMware…

What is HA?

What is HA?   http://www.vmware.com/pdf/ha_datasheet.pdf How Does VMware HA Work? VMware HA continuously monitors all servers in a resource pool and detects server failures. An agent placed on each server maintains a “heartbeat” with the other servers in the resource pool and a loss of “heartbeat” initiates the restart process of all affected virtual machines…

GUID Partition Table

GUID Partition Table (GPT) GUID Partition Table (GPT) is a new style of partitioning which is part of the Unified Extensible Firmware Interface Specification, using the globally unique identifier for devices. It is different from the Master Boot Record (the more commonly used partitioning style) in many aspects and has many advantages. To understand GPT, it is important to understand what…

What is SMB?

What is Server Message Block? SMB Stands for “Server Message Block.” SMB is a network protocol used by Windows-based computers that allows systems within the same network to share files. It allows computers connected to the same network or domain to access files from other local computers as easily as if they were on the computer’s local…

What is memory Ballooning??

What is memory Ballooning??   Ideally, a VM from which memory has been reclaimed should perform as if it had been configured with less memory. ESX Server uses a ballooning technique to achieve such predictable performance by coaxing the guest OS into cooperating with it when possible. A small balloon module is loaded into the guest OS as a…

What is vmotion and how it works?

What is vmotion and how it works? The brief explanation of V Motion functionality Live migration of a virtual machine from one physical server to another with VMware VMotion is enabled by three Underlying technologies. First, the entire state of a virtual machine is encapsulated by a set of files stored on shared storage such as Fibre Channel or iSCSI Storage Area…

Microsoft Application Virtualization (App-V)

Microsoft Application Virtualization (App-V) Microsoft Application Virtualization (also known as App-V; formerly Softricity SoftGrid) is an application virtualization and application streaming solution from Microsoft. It was acquired by Microsoft during the acquisition of Boston, Massachusetts-based Softricity (SoftwareWow!) on July 17, 2006. Softgrid represents Microsoft’s entry to the application virtualization market, alongside their other virtualisation technoligies such as Hyper-V, Microsoft Virtual Server, Microsoft Virtual PC, and System Center Virtual Machine Manager. Microsoft Application Virtualization…

System Center 2012 SP1 released

System Center 2012 SP1 released. Transform Your Datacenter with System Center 2012 SP1 System Center 2012 SP1 is now available for download here. System Center 2012 SP1 provides customers with one consistent platform for infrastructure, apps, and data. Try out the SP1 released recently.   For more information:-http://blogs.technet.com/b/server-cloud/archive/2013/01/15/transform-your-datacenter-with-system-center-2012-sp1.aspx

Windows Server 2012 new feature : ReFS (Resilient File System)

Windows Server 2012 new feature : ReFS (Resilient File System) ReFS (Resilient File System, originally codenamed “Protogon”) is a new file system in Windows Server 2012 initially intended for file serversthat improves on NTFS. Major new features of ReFS include: Improved reliability for on-disk structures ReFS uses B+ trees for all on-disk structures including metadata and file data. The file size, total volume size,…

Multiples of bytes

Multiples of bytes Multiples of bytes available till date… Multiples of bytes SI decimal prefixes Binary usage IEC binary prefixes Name (Symbol) Value Name (Symbol) Value kilobyte (kB) 103 210 kibibyte (KiB) 210 megabyte (MB) 106 220 mebibyte (MiB) 220 gigabyte (GB) 109 230 gibibyte (GiB) 230 terabyte (TB) 1012 240 tebibyte (TiB) 240 petabyte (PB) 1015 250 pebibyte (PiB) 250 exabyte (EB) 1018 260 exbibyte (EiB) 260…

Windows 2012 New Feature: IP address management (IPAM)

Windows 2012 New Feature: IP address management (IPAM) Windows Server 2012 has an IP address management role for discovering, monitoring, auditing, and managing the IPaddress space used on a corporate network. IPAM provides for administration and monitoring of servers running Dynamic Host Configuration Protocol (DHCP) and Domain Name System (DNS). IPAM includes components for: Custom IP address space display, reporting, and management: The…