Red Hat ENTERPRISE LINUX - ONLINE STORAGE RECONFIGURATION GUIDE BETA Manuale Utente Scaricare il pdf (Pagina 9)

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HIGH aVaILabILItY

ENHANCED CLUSTER RESOURCE MANAGER

Cluster resource management has been enhanced through several additions:

•Simplied administrative procedures reduce the amount of effort it takes to monitor and manage

a cluster.

•Finer-grained monitoring of every component in the cluster stack provides more awareness and

control over applications running in high-availability environments. Resources can have multiple

states associated with them and can be managed on a schedule basis or manually. An important

new feature is the ability to create user-dened actions.

•Resource cloning allows a single command to be replicated across multiple nodes in the cluster.

For example, by using cloned resources, issuing a single command can cause a GFS2 lesystem to

be mounted on all nodes within the cluster.

•The new cluster resource manager has both a graphical and a command-line interface. The

new resource manager provides a single environment for managing clusters running Red Hat

Enterprise Linux 6 and 7.

PACEMAKER POLICY ENGINE

The pacemaker remote capabilities now apply to virtual machines within a cluster. Now with

Red Hat Enterprise Linux 7 beta, users can run pacemaker from within a virtual machine and to

control resources and applications running in other virtual machines in the cluster.

For more detailed technical information and instructions for using the features and capabilities

described in this document, see the Red Hat Enterprise Linux 7 beta documentation

TECHNOLOGY OVERVIEW What’s new in Red Hat Enterprise Linux 7

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Red Hat ENTERPRISE LINUX - ONLINE STORAGE RECONFIGURATION GUIDE BETA Manuale Utente Pagina 9

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