Adaptec 2074700-R User Guide - Page 195
Server Clustering
View all Adaptec 2074700-R manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 195 highlights
Optional Features Optional Features A A.1 Appendix A, Optional Features provides instructions for server clustering with Microsoft and Novell operating systems and provides an overview of PCI Hot Plug. Refer to the Hardware Guide of the specific ICP RAID controller to determine whether the optional features described in this chapter are supported. Server Clustering In today's information technology world, high availability systems are gaining greater and greater importance. The demands on these systems are not only the continuous availability of important data, for example, 365 days x 24 hours, but also efficient resource sharing of expensive components. The secret behind clustering is the intelligent combination of many computer systems to increase the security and computing power of the whole system. A cluster appears to the user as one single system with extraordinary characteristics. Clustering software controls and manages the cluster and its members. There are several strategies when designing clustering systems. In the first model, the members (also called nodes) are connected to each other through a LAN. In another model, the nodes share an I/O bus. Host-based RAID controllers are ideally suited for cluster systems designed to avoid single points of failure (the components that cause a system failure when they fail). The choice of host-based RAID controllers for the nodes of a cluster system implements the appropriate redundancy and security in the mass storage part of the system. In contrast, external RAID controllers carry the risk of becoming single points of failure. Successful installation of a clustering system requires experience installing Microsoft Windows NT/2000 Server, Microsoft Cluster Server, Novell NetWare, and ICP RAID controllers. Information about the operating system, the functioning of the cluster and other system details may be found in their respective operating system manuals. For information about the installation of the ICP RAID controller and the configuration of disk arrays, refer to the RAID user documentation. Clustering Guide Available Clustering is applicable only for those RAID controllers that support this feature. See the Hardware Guide of the controller to determine if clustering is supported. The ICP RAID Controller Clustering Guide, or Clustering Guide, describes how to set up clustering configurations using ICP RAID Controllers and ICP RAID controller software. Information on Operating Systems, Cluster functionality, and other system details may be found in their corresponding system manuals. Software Installation and User's Guide 195