Red Hat Gfs - Red Hat CLUSTER SUITE FOR ENTERPRISE LINUX 4.7 Overview
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- Configuration and administration manual (22 pages)
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Red Hat GFS
Figure 1.11. Web Server Cluster Service Example
Clients access the cluster service through the IP address 10.10.10.201, enabling interaction
with the web server application, httpd-content. The httpd-content application uses the
gfs-content-webserver file system. If node B were to fail, the content-webserver cluster service
would fail over to node D. If node D were not available or also failed, the service would fail over
to node A. Failover would occur with no apparent interruption to the cluster clients. The cluster
service would be accessible from another cluster node via the same IP address as it was before
failover.
5. Red Hat GFS
Red Hat GFS is a cluster file system that allows a cluster of nodes to simultaneously access a
block device that is shared among the nodes. GFS is a native file system that interfaces directly
with the VFS layer of the Linux kernel file-system interface. GFS employs distributed metadata
and multiple journals for optimal operation in a cluster. To maintain file system integrity, GFS
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