Sales Enquiries
T 0800 027 2027
Technical Support
T 0845 271 1127
VMware is the global leader in virtualisation solutions from the desktop to the data centre. Customers of all sizes rely on VMware to reduce capital and operating expenses, ensure business continuity, strengthen security and go green. With 2007 revenues of $1.33 billion, more than 100,000 customers and nearly 14,000 partners, VMware is one of the fastest-growing public software companies. VMware is headquartered in Palo Alto, California
For further information click here ›
VMware NewsCategory: ,
|
There have been many tests published showing great performance of SAP software running on VMware vSphere in a two-tier configuration. Both the application server and database server are running on the same VM in a two-tier configuration which reflects how many customers run SAP solutions in small and mid size configurations. In larger configurations, it becomes necessary to split out the application server and database server onto separate systems. In order to demonstrate how SAP software scales in a three-tier environment running on vSphere, a test was set up with three application server VMs and one database server VM. Working with the Dell TechCenter lab, a PowerEdge M710 blade server with VMware vSphere 4.0.0 was used to test a set of SAP VMs in a three-tier configuration. The blade server had two quad-core Intel x5570 (Nehalem) processors and 72GB of RAM. Storage was provided by three PS5000XV Dell EqualLogic iSCSI arrays. Each of the four VMs was configured with 18GB of virtual memory and Microsoft Windows Server 2008 x64 was installed as the guest OS. Microsoft SQL Server 2008 was used as the database and enhancement pack 4 for SAP ERP 6.0 was running on the application server VMs. The database VM also had the SAP application server components installed, but no transactions were directed through it. Using a well understood SAP transactional workload on this three-tier configuration, three series of tests were run to measure how performance scaled as resources were added to the VMs. A one second response time criteria was used to determine the number of users. The graph below shows how the response time increased as users were added to each of the three configurations tested.
The first test configuration with four 2vCPU VMs achieved 1386 users. This initial test configuration had 8 virtual CPUs, one for each of the 8 physical cores in the server. In order to test the performance scaling when using SMT, the second configuration used a 4vCPU configuration for the VMs, allowing all 16 logical threads of the server to be used, and achieved a 24% increase in supported users. The Intel 5500 series processors implement Hyper-Threading, a form of Simultaneous Multi-Threading (SMT) which allows for two logical threads to run on each physical core. The two socket M710 used in this testing had 8 cores and 16 logical threads. It is not recommended to use CPU affinity for SAP VMs in production, but for this high stress testing scenario it was used to assign the vCPUs for each VM to specific logical threads. For a final test, a second server with the same configuration was added. All four VMs kept the same configuration from the previous test with 4vCPUs, but two of the VMs were moved to the new server. This third configuration is similar to the first, with the number of virtual CPUs being equal to the number of physical cores. There are 16 vCPUs assigned across the four VMs and there are a total of 16 cores across the two physical servers. Spread across two hosts, a total of approximately 2630 users could be run at under 1 second response time representing a 90% increase in performance from the first configuration. In terms of CPU utilization the servers were heavily utilized in all of the tests at the one second response time criteria. In the first test the core utilization as reported by esxtop averaged 85% and in the second test with all 16 logical threads being utilized it increased to 93%. In the final test with two hosts, the core utilization was 77% and 80%. The results show that using SAP in a three-tier configuration on vSphere allows for excellent scaling. Additional performance was achieved by simply adding more resources to the existing VMs (in the form of more physical cores) without making any changes to the operating system, database, or application servers running inside the VMs. |
|
Copyright © 2010 VMware, Inc. All rights reserved. |
|
Category: Knowledge Base Detailed Feed,
|
This article discusses the best way to make a backup of a virtual machine in VMware Fusion. To make a backup copy of a virtual machine, copy the virtual machine package (the file ending in |
|
Copyright © 2010 VMware, Inc. All rights reserved. |
|
Category: Knowledge Base Detailed Feed,
|
Lab Manager does not support the import of virtual machines containing snapshots. However, you can take some steps to import a virtual machine with snapshots Use the following procedure for |
|
Copyright © 2010 VMware, Inc. All rights reserved. |
|
Category: Knowledge Base Detailed Feed,
|
Windows prompts for activation when swapping between booting directly from a Boot Camp partition and using it in VMware Fusion. Booting a Windows OS |
|
Copyright © 2010 VMware, Inc. All rights reserved. |
|
Category: Knowledge Base Detailed Feed,
|
This article guides you through the process of opening a command prompt from Windows, a shell prompt from Linux or Mac OS. The article also describes how to get to a command or shell prompt by using a |
|
Copyright © 2010 VMware, Inc. All rights reserved. |
|
Category: Knowledge Base Detailed Feed,
|
This article assists you in gaining access to the virtual machine's BIOS options in the event that it passes too quickly to interact with the screen. To make it easier to access the |
|
Copyright © 2010 VMware, Inc. All rights reserved. |
|
Category: Knowledge Base Detailed Feed,
|
· VMware Tools installation fails · VMware Tools installation generates the error: The Windows Installer Service could not be accessed. This can occur if you are running Windows |
|
Copyright © 2010 VMware, Inc. All rights reserved. |
|
Category: Knowledge Base Detailed Feed,
|
· When attempting to customize the deployment of a virtual machine the radio buttons are disabled (greyed out) · When a virtual machine is deployed from a template, the SID is always the same, despite the |
|
Copyright © 2010 VMware, Inc. All rights reserved. |
|
Category: Knowledge Base Detailed Feed,
|
· A Windows XP guest generates a warning about BusLogic SCSI drivers during power on · You receive the following warning: Your guest operating system is Windows XP and |
|
Copyright © 2010 VMware, Inc. All rights reserved. |
|
Category: Knowledge Base Detailed Feed,
|
You have an ESX 3.0.2 host upgraded with patch ESX-1006363 build 117737 and VirtualCenter 2.5 and are experiencing these issues: · Uploading files to a datastore fails |
|
Copyright © 2010 VMware, Inc. All rights reserved. |
|
Category: Knowledge Base Detailed Feed,
|
· The Mac uses an IDE controller · The Boot Camp virtual machine fails to start in Fusion · You receive the following stop error: STOP: 0x0000007B INACCESSIBLE_BOOT_DEVICE This issue occurs when the |
|
Copyright © 2010 VMware, Inc. All rights reserved. |
|
Category: Knowledge Base Detailed Feed,
|
This article provides steps to locate a virtual machine bundle in VMware Fusion. Fusion creates a virtual machine as a bundle, which is a set of files grouped together as a package. Each |
|
Copyright © 2010 VMware, Inc. All rights reserved. |
|
Category: Knowledge Base Detailed Feed,
|
VMware Fault Tolerance (FT) requires specific processors (CPU) and guest operating systems. Processors VMware collaborated with AMD and Intel in providing an |
|
Copyright © 2010 VMware, Inc. All rights reserved. |
|
Category: Knowledge Base Detailed Feed,
|
· pNICs (Physical NICs) may lose connectivity over a period of time on a combination of IBM x3850 or x3950 M1 servers that use Intel 82571 based NICs · Loss of connectivity |
|
Copyright © 2010 VMware, Inc. All rights reserved. |
|
Category: Knowledge Base Detailed Feed,
|
· When trying to install VMware Tools the following error is displayed: Error 1606: Could Not Access Network Location \\ |
|
Copyright © 2010 VMware, Inc. All rights reserved. |
|
Category: Knowledge Base Detailed Feed,
|
· VMware View desktops lose their connection over a Security Gateway Server multiple times per hour · The View Client session becomes unresponsive for approximately 10 to |
|
Copyright © 2010 VMware, Inc. All rights reserved. |
|
Category: Knowledge Base Detailed Feed,
|
· VMotion on a powered on virtual machine fails · You see the error: A general system error occurred: failed to |
|
Copyright © 2010 VMware, Inc. All rights reserved. |
|
Category: Knowledge Base Detailed Feed,
|
· Time Machine backups take up too much room, too quickly · Restoring virtual machines from a Time Machine backup fails This document describes the best |
|
Copyright © 2010 VMware, Inc. All rights reserved. |
|
Category: Knowledge Base Detailed Feed,
|
· You get a blue error screen when booting to Windows. · You cannot boot into Windows. · You see this error when starting Windows: NTLDR is missing · You receive an |
|
Copyright © 2010 VMware, Inc. All rights reserved. |
|
Category: Knowledge Base Detailed Feed,
|
· Time Machine backup disk is being filled quickly · You cannot restore virtual machine from Time Machine backup · Virtual machines are experiencing performance |
|
Copyright © 2010 VMware, Inc. All rights reserved. |
|
Category: Knowledge Base Detailed Feed,
|
Mirrored folders allow the Mac and the virtual machine to see the same content in certain personal data folders. For example: · Any content put on the Mac's desktop also appears |
|
Copyright © 2010 VMware, Inc. All rights reserved. |
|
Category: Knowledge Base Detailed Feed,
|
This article discusses ways to protect your data from accidental loss. Making good backups of your data is essential. Mac OS X (10.5 and above) includes Time Machine, a utility that makes hourly backups |
|
Copyright © 2010 VMware, Inc. All rights reserved. |
|
Category: Knowledge Base Detailed Feed,
|
Running the vcbRestore command in the service console of ESX Server 3.0.3 and of ESX Server 3.5 or later to restore a virtual machine backed up in a VCB proxy by using VCB |
|
Copyright © 2010 VMware, Inc. All rights reserved. |
|
Category: Knowledge Base Detailed Feed,
|
You encounter either of these issues: · Windows logs into any user account (automatically or manually) but once logged in immediately logs out and |
|
Copyright © 2010 VMware, Inc. All rights reserved. |
|
Category: Knowledge Base Detailed Feed,
|
What is VMware Capacity Planner? VMware Capacity Planner a tool used by VMware partners to help our customers better understand their virtualization opportunities and map the virtualization process specifics |
|
Copyright © 2010 VMware, Inc. All rights reserved. |
|
Category: ,
|
A lot of you have been very busy this week, patching ESX hosts(That would be you Jason ;-)) and hopefully reading all the excellent articles being aggregated on Planet V12n...
|
|
Copyright © 2010 VMware, Inc. All rights reserved. |
|
Category: ,
|
We just published a SPECweb2005 benchmark score of 62,296 -- the highest result published to date on a virtual configuration. This result was obtained on an HP ProLiant DL380 G6 server running VMware vSphere 4 and featuring Intel Xeon 5500 series processors, and Intel 82598EB 10 Gigabit AF network interface cards. While driving the network throughput from a single host to just under 30 Gbps, this benchmark score still stands at 85% of the level achieved in native (non-virtualized) execution on equivalent hardware configurations. Our latest benchmark results show that VMware, with our partners Intel and HP, is able to provide virtualization solutions that meet the performance and scaling needs of modern data centers. In addition, the simplification achieved through consolidation in a virtual environment, as demonstrated by the configuration used in our benchmark publication, contributes to eliminating complexity in the software environment. Let me briefly discuss some of the distinctive characteristics of our latest benchmark results: Use of VMDirectPath for virtualizing network I/O: VMDirectPath is a feature in vSphere 4 that builds upon Intel VT-D (Virtualization Technology for Directed I/O) capability engineered into recent Intel processors to virtualize network I/O. It allows guest operating systems to directly access an I/O device, bypassing the virtualization layer. The result we just published is notably different from our previous results in that this time we used VMDirectPath feature to take benefit of the higher performance that it makes possible. High performance and linear scaling with the addition of virtual machines: VMDirectPath bypasses the virtualization layer to a large extent for the network interactions but, a measurable number of guest OS and hypervisor interactions still remain. The possibility still exists that the hypervisor can become a scaling limiter in a multi-VM environment. The excellent performance achieved by our benchmark configuration using four virtual machines shows that this should not be a concern. A highly simplified setup: Results published in the SPECweb2005 website reveal the complexity of “interrupt pinning” that is common in the configurations in a native setting, generally employed in order to make full use of all the cores in today’s multi-core processors. By comparison, our benchmark configuration does not use device interrupt pinning. This is because the virtualization approach divides the load among multiple VMs, each of which is smaller and therefore easier to keep core-efficient. Virtualization Performance: Our results show that a single vSphere host can handle 30 Gbps real world Web traffic and still reach a performance level of 85% of the native results published on equivalent physical configuration. This demonstrates capabilities several orders of magnitude greater than those needed by typical Web applications, proof-positive that the vast majority of the Web applications can be consolidated, with excellent performance, in a virtualized environment. For more details, check out the full length article published on the VMware community website in which we elaborate upon each of the characteristics that we briefly discussed here. |
|
Copyright © 2010 VMware, Inc. All rights reserved. |
|
Category: ,
|
These are the changes or updates made to the Guest Operating System Installation Guide since it was last published:
Guest/Host OS VMware Compatibility Guide: http://www.vmware.com/resources/compatibility/search.php?deviceCategory=software Guest Operating System Installation Guide PDF: http://www.vmware.com/pdf/GuestOS_guide.pdf Guest Operating System Installation Guide HTML: http://pubs.vmware.com/guestnotes/ |
|
Copyright © 2010 VMware, Inc. All rights reserved. |
|
Category: ,
![]() Recently John Arrasjid(@vcdx001), Steve Kaplan(@roidude) and I (@DuncanYB) released a book titled "Foundation for Cloud Computing with VMware vSphere 4". The book as John Arrasjid described it "provides a starting point for understanding the requirements to design and optimize a virtualized data center that also serves as the foundation for efficient and safe cloud computing." The book is published by USENIX/SAGE and it is the 21st book in the Short Topics series. SAGE is a Special Interest Group of the USENIX Association. Its goal is to serve the system administration community by organizing conferences and training to enhance the technical and managerial capabilities of members of the profession. Twenty copies of the book have been given away via Twitter and Mark Vaughn was one of the lucky people who won a copy and published a review. Here's an outtake from Mark's review: Review by Mark Vaughn |
|
Copyright © 2010 VMware, Inc. All rights reserved. |
|
Category: ,
|
PALO ALTO, CALIF – March 2, 2010 – VMware, Inc. (NYSE: VMW), the global leader in virtualization solutions from the desktop through the data center and to the cloud, today announced that its Board of Directors has authorized the purchase of up to $400 million of its Class A common stock through the end of 2011. Stock will be purchased from time to time, in the open market or through private transactions, subject to market conditions. The Company expects the equity purchase program to help partially offset dilution from its equity programs and believes it to be an appropriate use of proceeds from the exercise of employee stock options. About VMware VMware delivers... |
|
Copyright © 2010 VMware, Inc. All rights reserved. |
|
Category: ,
|
VMware vSphere™, VMware View™ and VMware ThinApp™ Enable Healthcare Customers to Reduce Costs and Help Ensure Availability of Patient-critical Solutions. ATLANTA,GA — March 1, 2010 — Today at HIMSS10, VMware, Inc. (NYSE: VMW), the global leader in virtualization solutions from the desktop through the datacenter and to the cloud, continues to gain momentum in the healthcare industry as more healthcare IT vendors select VMware as their virtualization platform of choice for deploying applications. VMware vSphere™ helps these vendors simplify IT environments, improve patient information security, and boost efficiency. Healthcare providers are increasingly choosing to run their... |
|
Copyright © 2010 VMware, Inc. All rights reserved. |
|
Category: ,
|
$item.data.get("content") |
|
Copyright © 2010 VMware, Inc. All rights reserved. |
|
Category: ,
|
Creating a top 5 seems to be getting more difficult week after week. Not only does the quality of the blog articles increase, the amount of blogs listed on PlanetV12n and the amount of articles also increase steadily. I hope I can keep up with you guys, or I might just need to get a cute assistant to help me out with this.... Hmmm, that's actually not a bad idea. Anyway, here's the list!
|
|
Copyright © 2010 VMware, Inc. All rights reserved. |
|
Category: ,
|
$item.data.get("content") |
|
Copyright © 2010 VMware, Inc. All rights reserved. |
|
Category: ,
|
Today VMware announced a definitive agreement to acquire certain management products from the EMC Ionix portfolio, including Server Configuration Manager (formerly Configuresoft), FastScale, Application Discovery Manager (formerly nLayers), and Service Manager (formerly Infra). These products will provide new capabilities to VMware’s vCenter family of products. Over the years, VMware has led the industry in virtualization of IT infrastructure. We have empowered customers to reduce costs, increase automation, and deliver new services that they could not before. Now, as the enterprise has increasingly adopted a virtualized model, the foundation has been built for the transition to cloud computing. |
|
Copyright © 2010 VMware, Inc. All rights reserved. |
|
Category: ,
|
Acquisition Expands VMware vCenter Management Product Family; Addresses Critical Management Needs as Customers Advance on Journey to Cloud Computing. PALO ALTO, CA and HOPKINTON, MA – February 25, 2010 – VMware, Inc. (NYSE: VMW), the global leader in virtualization solutions from the desktop through the data center and to the cloud, and EMC Corporation (NYSE: EMC) -- the world leader in information infrastructure solutions -- today announced that the two companies have entered into a definitive agreement for VMware to acquire certain software products and expertise from EMC’s Ionix IT management business, including solutions aimed at delivering improved management and deployment of... |
|
Copyright © 2010 VMware, Inc. All rights reserved. |
|
Category: ,
|
$item.data.get("content") |
|
Copyright © 2010 VMware, Inc. All rights reserved. |
|
Category: ,
|
PALO ALTO, Calif., February 24, 2010— VMware, Inc. (NYSE: VMW), the global leader in virtualization solutions from the desktop through the datacenter and to the cloud, today announced that Tod Nielsen, chief operating officer of VMware, will present at the Morgan Stanley Technology, Media & Telecom Conference in San Francisco, CA on March 2, 2010 at 11:00 a.m. PT/ 2:00 p.m. ET. A live webcast will be available on the Investor Relations page at http://ir.vmware.com. The replay of the webcast will be available for one month. About VMware VMware delivers solutions for business infrastructure virtualization that enable IT organizations to energize businesses of all sizes. ... |
|
Copyright © 2010 VMware, Inc. All rights reserved. |
|
Category: ,
|
These are the changes or updates made to VMware Compatibility Guide since it was last published:
Check the VMware Compatibility Guide here: http://www.vmware.com/resources/compatibility/search.php?deviceCategory=software |
|
Copyright © 2010 VMware, Inc. All rights reserved. |
|
Category: ,
|
$item.data.get("content") |
|
Copyright © 2010 VMware, Inc. All rights reserved. |
|