HP DL160 HP ProLiant Storage Server User Guide (440584-004, February 2008) - Page 128
Cluster concepts, Sequence of events for cluster resources
UPC - 883585847174
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• Storing the most current version of the cluster database • Guaranteeing that only one set of active communicating nodes is allowed to operate as a cluster Cluster concepts Figure 40 illustrates a typical cluster configuration with the corresponding storage elements. The diagram progresses from the physical disks to the file shares, showing the relationship between both the cluster elements and the physical devices underlying them. While the diagram only illustrates two nodes, the same concepts apply for multi-node deployments. Node 1 Node 2 Cluster Group FS1Eng Cluster Resource: Disk E Cluster Resource: IP Address 172.18.1.99 5 Cluster Resource: File Share Eng1 E:\eng1 Cluster Resource: Network Name Fileserver1 Cluster Resource: Disk F Cluster Resource: File Share Mar1 F:\Mar1 Cluster Group FS1Market Cluster Resource: Disk G Cluster Resource: IP Address 172.18.1.98 Cluster Resource: File Share Mar4 G:\Mar4 Cluster Resource: Network Name Fileserver2 E:\eng1 4 E:\eng2 E:\eng3 F:\Mar1 F:\Mar2 F:\Mar3 G:\Mar4 G:\Mar5 G:\Mar6 3 Cluster Resource Physical Disk E 2 Basic Disk E: Cluster Resource Cluster Resource Physical Disk F Physical Disk G Basic Disk F: Basic Disk G: Raidsets 1-3 Raidsets 4-5 Raidsets 6 1 Physical Disks 1-4 Physical Disks 9-12 Figure 40 Cluster concepts diagram Physical Disks 13-16 Physical Disks 20-23 Sequence of events for cluster resources The sequence of events in the diagram includes: 1. Physical disks are combined into RAID arrays and LUNs. 2. LUNS are designated as basic disks, formatted, and assigned a drive letter via Disk Manager. 128 Cluster administration