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Introduction to HP Availability Manager. Barry Kierstein Hewlett-Packard. Overview of This Session:. Availability Manager Overview Availability Manager Components Availability Manager Installation Availability Manager Configuration System Overview – Node monitoring and Event evaluation
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Introduction to HP Availability Manager Barry Kierstein Hewlett-Packard
Overview of This Session: • Availability Manager Overview • Availability Manager Components • Availability Manager Installation • Availability Manager Configuration • System Overview – Node monitoring and Event evaluation • Hands-on topics • Node data • Single Process data • Fixes • Customizations
Availability Manager Overview • Real-time display of system(s) being monitored; similar to MONITOR but with additional capabilities • Error and Information display: issues warnings when resources are low • Can be used to “fix” various problems • Display portion is easy to learn (point and click) • Default setup is a good place to start finding performance bottlenecks and resource contentions • With some customization, the Availability Manager helps pinpoint problems specific to the systems being monitored
Availability Manager Overview • Collects data on one or more nodes (systems), analyzes the data, displays it, and issues warnings • For Alpha and VAX, requires only an OpenVMS license to collect data • For I64, requires the EOE platform, or Avail_Man PAK to collect data • Separate installation kit: • Included on the CD-ROM distribution kit • Download is available from the OpenVMS homepage • Manuals included in hardcopy documentation kit, distribution kit, and on-line documentation kit
Availability Manager Groups • Systems can be grouped together for analysis • All members of an OpenVMS Cluster must have the same group name for correct clusterwide data collections • Unclustered systems can be put into the same group • Availability Manager can be configured to display information only from specified groups, reducing the number of systems being monitored • Also knows as AMDS groups
Availability Manager Components • Three parts: • Data Collector gathers data on system(s) being monitored • Data Analyzer collects data from the Data Collectors and displays the data • Data Server allows Data Analyzers to collect data over an IP-based wide area network (WAN)
Availability Manager Components • Data Analyzer: • A Java-based application • Runs on OpenVMS Alpha platform from V7.3-2 and later with Motif or X-Windows • Runs on OpenVMS I64 platform from V8.2-1 and later with Motif or X-Windows • Runs on Intel platforms under Windows 2000 and Windows XP Professional
Availability Manager Components • Data Collector: • Consists of an OpenVMS device driver, configuration and startup files • Device driver file is RMDRIVER.EXE on VAX, SYS$RMDRIVER.EXE on Alpha and I64 • Device shows up with $ SHOW DEVICE RMA0: command • Runs on Itanium, Alpha and VAX platforms • Runs on OpenVMS V6.2 and later • Sends out a Hello multicast message to announce an OpenVMS system to the Data Analyzer • Only collects data when a Data Analyzer sends a data collection request, uses little CPU time
Availability Manager Components • Data Server • The Availability Manager uses its own protocol (AMDS protocol) for communication between the Data Analyzer and each Data Collector • Connection not dependent on network software to work (IP, DECnet, LAT, etc.) • Data collection and fixes often work even when the network on the system is not functioning or the system is hung
Availability Manager Components • Data Server • Data Server allows a Data Analyzer to collect data over an IP-based network • Data Server resides on the same extended LAN as the OpenVMS systems so it can communicate to the Data Collectors using the AMDS protocol • Data Analyzer connects to the Data Server using an IP-based secure socket connection over a WAN or LAN • A Data Server can accept connections from several Data Analyzers • A Data Analyzer can connect to several Data Servers • For redundancy, one could have two Data Servers on the same LAN
Availability Manager Installation • Availability Manager kits • OpenVMS Data Collector kit and manifest for secure delivery • Contains files for each OpenVMS version and platform • Can use SYSMAN> DO command to install on a cluster • If updating the Data Collector, a system reboot is necessary to remove the old Data Collector • OpenVMS Data Analyzer/Server kit and manifest • Contains files for both the Data Analyzer and Data Server • System reboot is not necessary with this kit • Windows 2000/XP kit • Normal Windows installation, requires a reboot to install a driver • Install using Administrator account or equivalent
Availability Manager Configuration • Data Collector configuration • Data Collector password • In file SYS$MANAGER:AMDS$DRIVER_ACCESS.DAT • Authentication between Data Analyzer and Data Collector • A Data Collector can have several passwords allowing for various access rights and scopes • Considerations for passwords • Access rights – Read, Write and Control • Scope for a particular password • OpenVMS – password for all OpenVMS systems • AMDS group – common for clusters • Individual node
Availability Manager Configuration • Data Collector configuration • Data Collector settings • In file SYS$MANAGER:AMDS$LOGICALS.COM • AMDS$GROUP_NAME – set as desired, one per cluster • AMDS$DEVICE – Network adapter used for communications using the AMDS protocol • Data Analyzer connections to Data Collectors • Data Server connections to Data Collectors • Note: Data Analyzer to Data Server connections use the IP protocol. The network adapters used are controlled by the IP stack on the particular system.
Availability Manager Configuration • Data Collector configuration • Data Collector settings • Hello multicast message settings • AMDS$RM_DEFAULT_INTERVAL – Broadcast interval in seconds for Hello multicast messages when the system is not being monitored • AMDS$RM_SECONDARY_INTERVAL – Broadcast interval in seconds for Hello multicast messages when the system is being monitored • Determines how quickly the Data Analyzer discovers all the systems. For instance, if the secondary interval is 20 seconds for each system on a LAN, then it will take up to 20 seconds for all the systems on the LAN to be discovered. • Each message is one packet of around 200 bytes, contributes little to the network traffic
Availability Manager Configuration • Data Collector configuration • Data Collector startup • SYS$STARTUP:AMDS$STARTUP is used to start and stop the Data Collector, P1 is the function • START – Loads the configuration data and passwords, and starts the Data Collector. Put this in command in SYS$MANAGER:SYSTARTUP_VMS.COM after the network stacks have been started so the MAC addresses of the network adapters have their final value • STOP – Stops the Data Collector • RESTART – Stops and restarts the data collector. This is useful if you change the configuration data or passwords, and want the changes loaded into the Data Collector • STATUS – Current status of the Data Collector • HELP – List of possible functions
Availability Manager Configuration • Data Server configuration • Authentication between the Data Analyzer and the Data server is by Kerberos public and private keys • Create key pair on Data Server system • Start Data Analyzer, create keys, export public key • Create key pair on Data Analyzer system • Start Data Analyzer, create keys, copy to Data Server system • Covered in Chapter 2 of the Availability Manager Users Guide
Availability Manager Configuration • Data Analyzer configuration • Import any Data Server public keys • Start Data Analyzer • Import keys in Network Connection dialog box • Input Data Collector passwords • Use the Security tab in the Customization dialog box • Passwords can be entered at the appropriate level • OpenVMS level – Customize in System Overview • AMDS group level – Right-click on group in System Overview • Node level – Customize in Node pane or right-click on a node
Availability Manager Startup • The first window to appear is the System Overview Window • Event data also goes to the event log file AnalyzerEvents.LOG • On OpenVMS, you can set the location of the event log file with logical names
System Overview Window • Initially the System Overview window is empty. Systems are displayed as the Hello multicast message is received from each Data Collector • Shows all the systems being monitored in one window • Information includes the Name, Utilization, O.S. and Hardware versions • Allows customizations at the application and operating system levels • Shows the connection used to gather the data (network adapter, connections to Data Servers)
