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VERITAS ClusterX

VERITAS ClusterX. Bob Schiermann Product Manager VERITAS Software Corporation. High Availability and Windows NT. Windows NT 4.0 Enterprise Edition is the first step toward increased availability Windows 2000 Advanced Server and Data Center are aimed at furthering availability

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VERITAS ClusterX

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  1. VERITAS ClusterX Bob Schiermann Product Manager VERITAS Software Corporation

  2. High Availability and Windows NT • Windows NT 4.0 Enterprise Edition is the first step toward increased availability • Windows 2000 Advanced Server and Data Center are aimed at furthering availability • Open-systems approach is spawning 3rd party software for Windows NT high availability systems • Higher availability requires increasingly complex systems • HA-aware management tools are needed to ensure: • proper configuration of HA systems • notification and recovery of faults • real-time administration of HA systems

  3. Windows NT HA Market Increasing Availability of Windows NT Systems Application Availability Microsoft Cluster Server VERITAS Cluster Server for NT VERITAS FirstWatch Network Load Balancing Microsoft Windows Load Balancing Service Cisco Local Director Data Replication & Disaster Recovery VERITAS Rep Exec VERITAS Backup Exec VERITAS SRVM

  4. Why Manage HA Systems? • HA systems are complicated! • HA systems introduce complexities of configuring applications for failover • “Lack of investment in cluster management tools and the projected poor performance of the current set of systems management technology in clustered environment (will be an inhibitor to the cluster marketplace),” IDC

  5. What is needed? • Enable enterprise-wide management • Provide a common management console • Facilitate configuration of the HA system • Offer a UI that enables quick recognition of failures • Ensure quick notification of error conditions • Offer administrative control to recover from failures • Permanently store and recover system information • Utilize proper security

  6. “If you have Windows NT clusters, you need ClusterX.” Richard R. Lee, author Windows NT Microsoft Cluster Server Why Manage with ClusterX? • “Systems management tools currently existing within operating systems will not be sufficient for the task of managing clustered systems,” IDC • Microsoft tools are rudimentary, best suited for one cluster, and offer limited remote capabilities • ClusterX is designed specifically for clusters • Manages multiple clusters • Excellent remote management capabilities • Microsoft Management Console compatible

  7. ClusterXmanagement console The ClusterX Management Vision Managed Cisco LD clusters Managed Remote Replication Servers Branch Office Managed VCS clusters Wide Area Network Network Managed Remote Disaster Recovery Replication Server Managed WLBS clusters Managed MSCS clusters

  8. What does ClusterX support today?

  9. MSCS Overview • Offers very good availability; minimal scalability • Open architecture enables easy support of popular applications • Ships with Windows NT 4.0 Server Enterprise Edition • Major hardware vendors ship products based on MSCS • Limited to two nodes in Windows NT 4.0; four in Windows 2000 • Clients connect to their applications through a virtual IP address so that failover of the application minimizes interruption to clients

  10. MSCS Operational Overview SQL Clients Exch Clients LAN SQL Server Exchange Interconnect Server A Server B Disk F Disk G

  11. MSCS Operational Overview SQL Clients Exch Clients LAN SQL Server SQL Server SQL Server Exchange Interconnect Server A Server B Disk F Disk G

  12. ClusterX for MSCS Features • Enterprise-wide view of clusters and cluster/generic applications • Guides setup and configuration of clustered applications using wizards ( IIS, SQL Server, Exchange, more to come) • Clarifies cluster resource dependencies in a powerful graphical view • Audits cluster changes and problems • Provides cluster uptime statistics – enforcing SLAs • Proactively manages clusters • Integrates with major frameworks

  13. Dependencydisplay Select tabs to display information ClusterX for MSCS Manage multipleMSCS clusters, groupsand resources from a single console

  14. WLBS Overview • Software that provides network load balancing • Microsoft purchased technology from Valence Research to create WLBS • Operates on Windows NT 4.0; licensing requires Windows NT 4.0 Enterprise Edition • Works on any TCP service operating over Ethernet or FDDI • Supports up to 32 hosts in the WLBS cluster

  15. WLBS Operational Overview • Each host in the WLBS cluster receives incoming traffic • The hosts collectively determine who should accept and respond to a specific host Dedicated IP 192.168.1.10 Virtual IP 1.1.1.10 Accept? No Request sent to WLBS virtual IP WLBS Host 1 Accept? No Dedicated IP 192.168.1.11 Virtual IP 1.1.1.10 WLBS Host 2 Accept? Yes Dedicated IP 192.168.1.12 Virtual IP 1.1.1.10 WLBS Host 3

  16. ClusterX for WLBS Features • One-to-many management from a central console • Centralized configuration of WLBS nodes • Performance reporting • Policy-based convergence • Software, hardware, and network fault detection • Automatic discovery of WLBS clusters • Audit logs • Dynamic load balancing • Uptime Statistics

  17. ClusterX for WLBS Manage multipleWLBS Serversfrom a single console DisplayWLBS serverperformance Select tabs to display information

  18. Future ClusterX Management • VERITAS Cluster Server • Cisco Local Director • VERITAS Replication Exec

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