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VMware Technical Publications Glossary

This document supports the version of each product listed and supports all subsequent versions until the document is replaced by a new edition. To check for more recent editions of this document, see http://www.vmware.com/support/pubs.

EN-000177-01

VMware Technical Publications Glossary

You can find the most up-to-date technical documentation onthe VMware Web site at: http://www.vmware.com/support/ The VMware Web site also provides the latest product updates. If you have comments about this documentation, submit your feedback to: docfeedback@vmware.com

Copyright © 2011 VMware, Inc. All rights reserved. This product is protected by U.S. and international copyright and intellectual property laws. VMware products are covered by one ormore patents listed at http://www.vmware.com/go/patents. VMware is a registered trademark or trademark of VMware, Inc. in the United States and/or other jurisdictions. All other marks and names mentioned herein may be trademarks of their respective companies.

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Contents

Glossary 5 Index 23

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Glossary

The VMware Technical Publications Glossary defines terms as used in VMware technical documentation. ACE instances The virtual machines that ACE administrators create, associate to virtual rights management (VRM) policies, and package for deployment to users. See also VRM (Virtual Rights Management), disk mode.Activation A step in an ACE instance setup that includes package protection and the setup of the ACE instance’s runtime authentication policy. Complete the activation to make the packaged virtual machine, with its policies and other settings, into an ACE instance. See also authorization role. administrative lockout A global setting that provides password protection for Windows hosts. Administrativelockout restricts users from creating new virtual machines, editing virtual machine configurations, and changing network settings. admission control When you power on a virtual machine, the system checks the amount of CPU and whether memory resources are reserved. Based on the available unreserved resources, the system determines whether it can guarantee the Reservation for which the virtualmachine is configured. alarm An entity that monitors one or more properties of a virtual machine, such as CPU load. Alarms send notifications as directed by the configurable alarm definition. anomaly In Capacity Planner, an indicator that server performance is significantly different from the industry performance averages of like servers. Capacity Planner notes an anomaly when it detects performancethat is more than three standard deviations from the industry average. append mode In ESX Server 2.x, a disk mode in which software running in the virtual machine appears to write changes to the disk. Changes are stored in a temporary .REDO file. If a system administrator deletes the redo-log file, the virtual machine returns to the state it was in the last time it was used in persistent mode. Seealso disk mode. array-based replication Replication of a virtual machine that is managed and executed by the storage subsystem rather than from inside the virtual machine, the VMkernel, or the service console. asynchronous I/O (AIO) In GSX and Workstation, a process that handles blocking system calls for asynchronous I/O, or nonblocking I/O. AIO is a form of input and output processing thatpermits other processing to continue before the transmission finishes.

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VMware Technical Publications Glossary

authorization role A set of privileges grouped for convenient identification under names such as Administrator. base disk The original virtual hard disk from which a virtual machine is derived. Virtual machines created by linked clones in Lab Manager consist of a...
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