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VMware and Microsoft Virtualization - Open Source Technologies - IT Management and Security

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Via ICT-Freak.nl:

1.Troubleshooting ESXi
2.Troubleshooting ESX 3.x (mind map)
3.Troubleshooting VI3 (from VMworld 2006)

Posted by Gabriel Maciel

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This is a new introductory video to VMware Site Recovery Manager that explains what SRM can do and provides a demo of the product.

You can watch the video here.

Posted by Gabriel Maciel

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VM Monitor

Get X-Ray Insight into Your ESX Servers:

• Quickly check the health of your VMware ESX Server

• View detailed virtual machine health statistics

• Get visual alerts when performance degradation occurs

FREE Real-time NetFlow Analyzer

This free desktop tool captures and analyzes NetFlow data so that you can:

• Quickly answer "why's the network so slow?"

• Identify network top talkers

• Analyze traffic spikes and bandwidth consumption

Exchange Monitor

Continuously monitor Microsoft® Exchange health, including:

• Exchange services

• Mail queues

• Host server health

Award Winning TFTP Server

The most robust, widely trusted and easy-to-use TFTP server which enables you to:

• Concurrently upload and download images from multiple devices

• Upload and download configurations to devices

• Transfer files larger than 32MB

Advanced Subnet Calculator

Compute addresses for IP subnets with ease and perform other tasks with:

• Forward and reverse DNS resolution

• CIDR calculator

• Ability to geneate a list of addresses for any subnet

Posted by Gabriel Maciel

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"This script performs backups of virtual machines residing on ESX 3.5+ and ESXi servers using methodology similar to VMware's VCB tool. The script takes snapshots of live virtual machines, backs up the master VMDKs and then upon completion, deletes the snapshot until the next backup. The only caveat is that it utilizes resources available to the Service Console of the ESX server running the backups as opposed to following the traditional method of offloading virtual machine backups through a VCB proxy."

You can find more information about the script here.

Posted by Gabriel Maciel

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VMware Videos

Posted by Gabriel Macie… Nov 15, 2008

This search brings you all the video tagged VMware across MSN, AOL, MTV, Hulu, ESPN, YouTube, MySpace, Dailymotion, Metacafe.


To search other video use http://www.live.com/?scope=video.


Posted by Gabriel Maciel

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From TrainSignal.com:

"This 6 hour training course introduces you to Windows Server 2008. It will teach you some of the hot new features that are available in Window Server 2008 and how to configure them.

This course is just the beginning..."

You can download the free training videos here.

Posted by Gabriel Maciel

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The VMware Infrastructure Management Assistant (VIMA) allows administrators and developers to run scripts and agents to manage ESX and ESXi systems. VIMA is a virtual machine that includes prepackaged software, a logging component, and an authentication component that supports non-interactive login. You can use VIMA to perform most of the tasks commonly performed in the ESX service console.


You can download the appliance here.


Posted by Gabriel Maciel

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From Yellow Bricks (Duncan Epping):

I’ve been doing VMware Design Reviews lately and so are my colleagues of the PSO department. A Design Review is quick scan of your design documentation by a VMware consultant. The consultant will hold your docs against best practices and propose changes to the design.

One of the things we encounter on a regular base is that admins took the easy path for their Storage Design zoning. So what’s zoning? In short: a way to partition your fabric into smaller subsets. These small subsets provide you with a better security and less interference...

You can read the full article here.

Posted by Gabriel Maciel

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SolarWinds free VM Monitor is an ingenious desktop tool that continuously monitors a VMware® ESX Server and its virtual machines, delivering the real-time virtualization monitoring that you’ve been missing. With VM Monitor at your fingertips, you’ll be able to track virtualization health at-a-glance and ensure your mission-critical apps never fail you. Go ahead, declare victory in the virtualization game and impress your boss and your fellow IT administrators with your newfound X-ray vision into ESX Servers!

SolarWinds free VM Monitor makes it easy to:

  • Quickly check the health of your VMware ESX Server by monitoring CPU, memory utilization, number of virtual machines configured and running, and much more

  • View detailed individual virtual machine health statistics including VM name, guest OS, and VM state, as well as processor, memory, and network usage

  • Leverage best practice thresholds to begin monitoring virtualized servers right out-of-the-box

  • Prevent performance degradation by watching threshold-specific indicators to visually alert you when problems occur

You can download the tool here.

Posted by Gabriel Maciel

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Very nice work done by Mark Wilson on this Active Directory series!


Here are the links:



Sources:


Mark Wilson's Blog


The things that are better left unspoken


Posted by Gabriel Maciel

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An issue has been uncovered with ESX 3.5 Update 2 (build 103908) and ESXi 3.5 Update 2 (build 103909) that causes the product license to expire on August 12, 2008.


VMware has reissued ESX 3.5 Update 2 (build 110268) and ESXi 3.5 Update 2 (build 110271) for download.


You can download the new bits here


Posted by Gabriel Maciel

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This problem applies to all ESX 3.5 U2 hosts but should not affect you running VMs. Suggested Workarounds:


For the Virtual Machines:

  • Set DRS to manual

  • Do not VMotion

  • Do not power off or suspend your VMs

  • If you have important VMs you need to turn on again: a. Create a quarantine host b. Set time on this host back c. Cold migrate the VM to the quarantine host d. Verify that your VM does not synchronize its time with that ESX host: Power the VM on, log into it and set the time manually

  • You could also think about temporarily disconnecting the VM to power on from the Virtual Switch - this way you are certain that the VM will not be able to communicate with a DC while it’s out of time-synch

Note: Please take into account that if you change the time on the affected ESX host and VMware tools is configure to synchronize the guest with it, you may adversely affect your running services.


For the ESX Host:

  • Log in as root on the target host

  • Issue the following commands:

    a. service ntpd stop

    b. date -s 08/01/2008

Note: This can also be done using the VI Client (Configuration, Software, Time Configuration, Properties).


Further reading and sources for this article:


Posted by Gabriel Maciel

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From Virtualization.Info:

VMware finally made the move that everybody predicted and was awaited for a long time: releasing its hypervisor for free.


During the Q2 2008 earnings call the company announced that before the end of July it will release the Update 2 for VMware Infrastructure 3.5 and that will give away the lightweight edition of the product, ESX 3i, for free.


The new 3i edition was introduced at the end of the last year.


It doesn’t change the characteristics of the hypervisor but fundamentally chances a part of its architecture, dropping the Console Operating System (COS) and reducing the overall system footprint to 32Mb.


The change allowed several OEMs to preload this edition of the hypervisor into their servers, through internal USB keys, Solid-State Drives (SSD) or hidden partition in the primary hard drives.


virtualization.info has learned some additional details about the move:


  • VI 3.5 and ESX 3i will continue to share a the large majority of the code base (so there will be an ESX 3i Update 2). There will be no delays on the release of both products.

  • ESX 3i will continue to have the same features that has today, without additional limitations

  • ESX 3i will continue to have the same APIs, allowing anybody to develop free or commercial alternatives to VirtualCenter (despite some features like VMotion cannot be replicated because of the VMware SDK limitations).

  • VMware will not require the purchase of any software & support subscription to access the product. Customer will be able to get the code without any restriction.

  • The customers that purchased the current version of ESX 3i directly from the VMware online store will be eligible for a rebate.

  • The ESX version that includes the Console Operating System (COS) will not be faded out (at least in the short timeframe). Most VMware customers are currently using that version and the company will support them for a long time.

  • VMware Server will not be faded out (as many could suppose). The company still sees the product as a valuable proposition for a different kind of audience.

You can read the full post here.


Posted by Gabriel Maciel

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This is an interesting post Leo Raikhman wrote about the ESX / VC installation best practices:

I get asked this all the time: what is best practice installation procedure?

I don’t know that there is such a thing - every environment is slightly different but here’s my general outline for ESX 3.5 + VirtualCenter 2.5 attached to Fibre SANs.

Installing VirtualCenter 2.5:

  • Install SQL 2005 + SQL Native Client
  • Patch SQL 2005 to SP2 + associated updates
  • Enable SQL clustering if relevant.
  • Create SQL DB with SQL-authenticated user as db_owner for the msdb and newly created databases (for VMware VirtualCenter and VMware Update Manager)
  • Create an ODBC connection with above information on targeted VC server
  • Install VirtualCenter
  • Add VirtualCenter server IP to Exchange Relay Access rulesets
  • Configure VirtualCenter SMTP settings, alarm definitions and Message of the Day
  • Copy/install sysprep/deployment tools files
  • Create required customizations
  • Create a datacenter object
  • Create a cluster object
  • Configure HA + advanced HA with VM HA monitoring
  • Configure DRS + separation rules
  • Install Update Manager - sync ESX host updates with VMware downstream servers
  • Configure VirtualCenter certificates as per this article from the excellent VM/ETC

Read the full post here.

Posted by Gabriel Maciel

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"As virtualization of network DMZs becomes more common, demand is increasing for information to help network security professionals understand and mitigate the risks associated with this practice. This paper provides detailed descriptions of three different virtualized DMZ configurations and identifies best practice approaches that enable secure deployment."

Read the full article here: DMZ Virtualization with VMware Infrastructure.

Posted by Gabriel Maciel

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