High Availability Planning

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Presentation transcript:

High Availability Planning H6487S I.02 Module 3

© 2003 Hewlett-Packard Development Company, L.P. What Are the Risks? root lan0 What do I have to do to make my system “highly available”? System A SCSI 1 Power Circuit A Volume Group 01 H6487S I.02 © 2003 Hewlett-Packard Development Company, L.P.

Reducing the Risk (Redundant Data) root lan0 mirror System A SCSI 1 SCSI 2 Power Circuit A Primary Mirror Volume Group 01 H6487S I.02 © 2003 Hewlett-Packard Development Company, L.P.

Reducing the Risk (Minimizing Downtime) root root lan0 lan0 mirror mirror System A System B SCSI 0 SCSI 1 SCSI 2 SCSI 1 Power Circuit A Primary Volume Group 01 Mirror Primary Volume Group 02 Mirror H6487S I.02 © 2003 Hewlett-Packard Development Company, L.P.

Reducing the Risk (Network Connectivity) hub root root lan0 lan1 lan0 lan1 mirror mirror System A System B SCSI 0 SCSI 1 SCSI 2 SCSI 1 Power Circuit A Primary Volume Group 01 Mirror Primary Volume Group 02 Mirror H6487S I.02 © 2003 Hewlett-Packard Development Company, L.P.

Reducing the Risk (Other Issues) root root lan0 lan1 lan0 lan1 Power Circuit B mirror mirror System A System B SCSI 0 SCSI 1 SCSI 2 SCSI 1 Power Circuit A c0t3d0 SystemA c2t3d0 SystemB c1t5d0 SystemA c1t5d0 SystemB Primary Mirror Power Circuit C Volume Group 01 c0t4d0 SystemA c2t4d0 SystemB c1t6d0 SystemA c1t6d0 SystemB Primary Mirror Volume Group 02 H6487S I.02 © 2003 Hewlett-Packard Development Company, L.P.

© 2003 Hewlett-Packard Development Company, L.P. Disk Configurations LVM Mirrored JBODS Disk Array Configuration Large Disk Array Configuration H6487S I.02 © 2003 Hewlett-Packard Development Company, L.P.

© 2003 Hewlett-Packard Development Company, L.P. LVM Mirrored JBODs System A SCSI 0 lan0 SCSI 1 System B SCSI 0 lan0 SCSI 1 c0t5d0 c1t2d0 c0t4d0 c1t1d0 c0t3d0 c1t0d0 c0t2d0 c1t15d0 Primary Mirror H6487S I.02 © 2003 Hewlett-Packard Development Company, L.P.

Disk Array Configuration System B SCSI 0 lan0 SCSI 1 lan0 SCSI 0 SCSI 1 SCSI 3 SCSI 4 System A c0t4d1 c1t3d1 c0t4d0 c1t3d0 c0t4d2 c1t3d2 LUN 0 c0t3d1 c1t4d1 c0t3d0 c1t4d0 c0t3d2 c1t4d2 LUN 1 LUN 2 H6487S I.02 © 2003 Hewlett-Packard Development Company, L.P.

Large Cluster Configuration B C D E F G Node1 Node2 Node3 Node4 Node5 Node6 Node7 Standby H6487S I.02 © 2003 Hewlett-Packard Development Company, L.P.

Network Configurations Redundant LANs Normal Network Flow Network Flow during Package Failover Routed Networks and MC/SG Clusters H6487S I.02 © 2003 Hewlett-Packard Development Company, L.P.

© 2003 Hewlett-Packard Development Company, L.P. Redundant LANs System A System B pkgA pkgB Standby LAN Card Primary LAN Card Heartbeat LAN Card Standby LAN Card Primary LAN Card Heartbeat LAN Card Bridged Net #1 Dedicated Heartbeat LAN Primary LAN: Heartbeat/Data Bridged Net #2 hub Standby LAN: Heartbeat/Data H6487S I.02 © 2003 Hewlett-Packard Development Company, L.P.

© 2003 Hewlett-Packard Development Company, L.P. Normal Network Flow System A System B pkgA Package IP addr 156.153.194.101 pkgA pkgA mirror Standby LAN Card Primary LAN Card Standby LAN Card Primary LAN Card Host IP addr 156.153.194.1 Host IP addr 156.153.194.2 hub Connection by clients to IP 156.153.194.101 H6487S I.02 © 2003 Hewlett-Packard Development Company, L.P.

Network Flow during Package Failover System A System B pkgA Package IP addr 156.153.194.101 pkgA pkgA pkgA mirror Standby LAN Card Primary LAN Card Standby LAN Card Primary LAN Card Host IP addr 156.153.194.1 Host IP addr 156.153.194.2 hub Connection by clients to IP 156.153.194.101 H6487S I.02 © 2003 Hewlett-Packard Development Company, L.P.

Routed Networks and MC/SG Clusters Router OK ! H6487S I.02 © 2003 Hewlett-Packard Development Company, L.P.

Configuration Roadmap You are here. Plan the Cluster Setup Hardware Configure LVM Hardware LVM Cluster Packages CPU Disks LANs Power Lock VG Lock Disk Physical VGs VGs for Packages Configure the Cluster Configure Packages Maintenance Gather Data Edit the Cluster Configuration File Check and Compile File Send File to Other Nodes Edit Pkg Config File Edit Control Script Check and Compile File Send File to Other Nodes Cluster Packages Hardware Diagnostics Monitors H6487S I.02 © 2003 Hewlett-Packard Development Company, L.P.