HPMA User Guide
Overview of Server Manager
Each server used in an HP Medical Archive deployment runs the Server Manager application. The Server Manager program is used to supervise starting and stopping services on the server, ensuring services gracefully join and leave the grid. It also monitors services on the server, and attempts to restart any that report faults.
Grid services have a variety of dependencies on support packages such as networking, timing synchronization, and
Server Manager provides you with a graphical interface on the local console of the server, enabling coarse (whole server) control and moni- toring of the device. The state of services is reported, along with server identity information such as IP addresses. Control buttons allow you to stop services to perform upgrades, reboot the server, or shut the server down for hardware maintenance. All operations preserve graceful service disconnections and restarts; grid operations are smoothly completed before the services are removed from the grid. Services and support applications are stopped in a sequence that avoids breaking any interdependencies.
Server Manager continues to run at all times, monitoring the services and automatically restarting any that go offline. Should a service go offline unexpectedly or a server suffer an unexpected power cycle or reset, Server Manager ensures all services are brought back online without the need of manual intervention.
Services
The first part of this manual (dealing with the NMS) uses specific ter- minology for locations, servers, services, and so on. This discussion of the Server Manager refers to “services” in a broader sense, including operating system processes such as networking and file systems and
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HP Medical Archive
