Cluster Server 8.0 Application Note: Dynamic Reconfiguration for Oracle Servers - Solaris
- Dynamic reconfiguration of Oracle servers
- Overview: Dynamic reconfiguration in a VCS environment
- Supported software and hardware
- Preparing to perform dynamic reconfiguration
- Scenarios requiring a VCS shutdown
- Stopping and starting VCS
- Performing dynamic reconfiguration on Oracle SunFire (s6800; e12K/15K/ e25K)
- Replacing an online Host Bus Adapter (HBA) on an M5000 server
Preparing to perform dynamic reconfiguration
Make sure that you determine which devices on the system board will be impacted by the dynamic reconfiguration operations and determine how to mitigate the impact.
To be dynamically reconfigured, the boards must satisfy the following conditions:
Critical resources on the boards must be redundant. For example, boards for which CPUs and memory are redundant can be reconfigured after their function has been replaced and their activity stopped. A CPU board that contains the only CPU in a domain cannot be moved.
A memory board containing permanent memory, such as the OpenBootTM PROM or kernel memory, can be moved after the memory has been moved to another board. Dynamic reconfiguration on boards with permanent memory requires VCS to be shut down.
Disk drives must be accessible via alternate pathways. The Dynamic Multi-Pathing (DMP) feature can provide alternate paths. Before moving a host bus adapter (HBA), switch all the card's functions to an alternate card. An HBA that controls sole access to an active drive cannot be moved.
Activity on a PCI card must be stopped before the card is removed.