Showing posts with label Virtual Machine. Show all posts
Showing posts with label Virtual Machine. Show all posts

Wednesday, December 12, 2018

Five things backup administrators should know about VMware Consolidated Backup

How VMware Consolidated Backup Works

Consolidated Backup consists of a set of utilities and scripts that work in conjunction with a third-party backup software. To ensure that Consolidated Backup works with the specific backup software, either VMware or your backup software vendor provide integration modules containing any required pre-backup and post-backup scripts.
The third-party software, integration module, and Consolidated Backup run on the VCB proxy, a physical or virtual machine that has Microsoft Windows operating system installed.
For specific versions of Microsoft Windows, see Configuring Windows on the VCB Proxy.
VMware Consolidated Backup Usage Models
To store and manage virtual disk files, ESX Server uses a variety of physical storage devices, including local disks, NAS storage, Fibre Channel SANs, or iSCSI SANs.
For more information on different types of storage, see ESX Server 3 Configuration Guide or ESX Server 3i Configuration Guide.
The type of storage device your ESX Server system has access to determines how you set up the VCB proxy and the transportation method Consolidated Backup uses to access virtual disk data.
Consolidated Backup provides the following methods of accessing virtual machine disk data:
• SAN Mode – Use with Fibre Channel and iSCSI storage to completely off-load backups to a physical VCB proxy.
• Hot-Add Mode – Use with any type of storage to perform backups by a VCB proxy set up in a virtual machine.
• LAN Mode (NBD Mode) – Use when your environment does not permit the use of the SAN or Hot-Add modes.

VMware Consolidated Backup Workflow | Types of Backups | Performing Image-Level Virtual Machine Backups

VMware Consolidated Backup Workflow | Types of Backups
VMware Consolidated Backup Workflow
Before using Consolidated Backup, you need to configure and schedule a backup job for each virtual machine or a group of virtual machines.
At the scheduled time, the backup software starts the backup job on the VCB proxy. When the backup job is launched, the following steps take place:
1
The backup software calls the pre-backup script, which performs these tasks:
a
(Optional) Runs your custom pre-freeze script in the virtual machine.
The pre-freeze script prepares the critical software components in the virtual machine for a backup. See below Running Custom Quiescing Scripts.
b
Quiesces the virtual machine.
c
Puts the virtual machine into snapshot mode.
Changes to virtual disks are stored for later writing. The virtual machine can continue to operate during this process.
d
Unquiesces the virtual machine that was quiesced in Step b.
e
(Optional) Runs your custom post-thaw script in the virtual machine.
The post-thaw script reverses any changes made by the pre-freeze script in Step a.
f
Makes the virtual machine snapshot available to the third-party software:
For image-level virtual machine backups, see below Performing Image-Level Virtual Machine Backups.
For file-level backups of Microsoft Windows virtual machines, see below Performing File-Level Virtual Machine Backups.
2
The backup software performs an ordinary backup of the virtual machine snapshot moving the data to a backup medium. The virtual machine can continue to operate during this process.
3
The backup software calls the post-backup script, which performs the following tasks:
a
Unmounts the virtual machine snapshot from the backup proxy.
b
Takes the virtual machine out of snapshot mode, committing to disk any changes made while the machine was in snapshot mode.


Saturday, June 13, 2015

Oracle VM VirtualBox 4.1.8 Download links for all Operating systems

 Oracle VM VirtualBox

VirtualBox is powerful Cross-platform Virtualization Software for x86-based systems.
"Cross-platform" means that it installs on Windows, Linux, Mac OS X and Solaris x86 computers. And "Virtualization Software" means that you can create and run multiple Virtual Machines, running different operating systems, on the same computer at the same time. For example, you can run Windows and Linux on your Mac, run Linux and Solaris on your Windows PC, or run Windows on you Linux systems.

Oracle VM VirtualBox is available as Open Source or pre-built Binaries for Windows, Linux, Mac OS X and Solaris.

Oracle VM VirtualBox

The latest release is version 4.1.8.
On this page you can download:


Oracle VM VirtualBox

Freely available for Windows, Mac OS X, Linux and Solaris x-86 platforms:
PlatformFile
Windows (32-bit/64-bit) VirtualBox-4.1.8-75467-Win.exe
Mac OS X VirtualBox-4.1.8-75467-OSX.dmg
Solaris 10 5/08 and later (32-bit/64-bit)VirtualBox-4.1.8-75467-SunOS.tar.gz
Linux 32-bit Platforms

Monday, May 7, 2012

Windows 8 Consumer Preview (What's new)

It's Windows reimagined and reinvented from a solid core of Windows 7 speed and reliability. It's an all-new touch interface. It's a new Windows for new devices. And it's your chance to be one of the first to try it out.
Source From the Link fo Microsoft