User manual HP PROLIANT ESSENTIALS PERFORMANCE MANAGEMENT PACK SW

[. . . ] HP ProLiant Essentials Performance Management Pack User Guide Part number: 306919-408 Fourteenth edition: July 2007 Legal notices © Copyright 2003-2007 Hewlett-Packard Development Company, L. P. Valid license from HP required for possession, use or copying. Consistent with FAR 12. 211 and 12. 212, Commercial Computer Software, Computer Software Documentation, and Technical Data for Commercial Items are licensed to the U. S. Government under vendor's standard commercial license. [. . . ] The recommendation demonstrates not only a non hardware related solution, but also the specificity of PMP. Had this been a different component or subcomponent, the recommendation would have been specific to that component. Using PMP 32 Performing a static analysis The following sections provide examples of using static analysis. General Usage Performance issues are often introduced during system configuration. This might be caused by a planning error, an error in following the prescribed configuration path, or a result of many updates to a system over time. Regardless of the cause, PMP can analyze static configurations and make suggestions to areas of concern before a change occurs. From the Systems Insight Manager console toolbar, click Reports>Performance Management Pack Reports>Static Analysis Report, select the "pmpserver" checkbox, and click Generate Report to display the Static Analysis Report for "pmpserver. " These results can be printed from the browser. Using PMP 33 Half duplex port Scan through the report shown in the following figure. The first potential issue is indicated by the message "At least one port is running in Half Duplex mode. " PMP indicates that a network port is running half duplex, which can cause a bottleneck. In this case, half duplex was set in error, and it is causing an artificial bottleneck for network traffic over that port. Using PMP 34 Unassigned disks The next message that might indicate a problem in the report is "One or more physical disks are not assigned to an array. " In many cases, this condition might be expected, particularly if online spare drives are configured because they are not part of an array set. However, this condition might be unexpected because of an interrupted array configuration attempt. Using PMP 35 Reduced SCSI speed The message "At least one drive is running at a reduced SCSI speed on SCSI Port 1" appears in the report. In this example, the HP ProLiant DL380 server was configured correctly with a new Smart Array controller and Ultra-320 drives, but the drives are not running at Ultra-320 speed. Further examination of the hardware reveals an older SCSI cable as a potential problem. Testing reveals that the differential pin on the SCSI cable is bad, causing the drive and controller to revert to SCSI-2 speed for transmission. PMP detected the potential performance problem and helped narrow the cause before any product work on the server. Host bus balancing Although there are no error messages displayed in this static analysis, it is important to note that PMP can help determine how the devices in a system are laid out across the host buses and what issues might arise from bus overloading. Performing Online and Offline Analysis The following sections provide instructions to use PMP Online and Offline Analysis. Online Analysis The PMP Online Analysis tool enables performance data to be viewed from a real-time data stream and provides an intuitive interface to detail the performance status and inventory of monitored servers and their components. In the previous example, Online Analysis is used to determine that the system required more physical memory to handle the assigned load balance. To use Online Analysis, either click the monitored server icon from the Systems Insight Manager PF column, or: 1. From the Systems Insight Manager console toolbar, click Diagnose>Performance Management Pack>Online Analysis. Select the checkbox next to the server or servers for which to view performance data. The checkbox at the top of the column can be used to select all of the servers listed on the page. Online Analysis appears in a new window. Using PMP 36 IMPORTANT: When Online Analysis is started for a server, an Online Analysis session is started automatically for any licensed network storage enclosure connected to that server. IMPORTANT: As PMP supports VMware ESX 2. 5. 2, 2. 5. 3, 2. 5. 4, 3. 0, and 3. 0. 1, there are differences in the way PMP analyzes servers running with VMware ESX operating systems. If you have VMware ESX operating system installed and you have not configured Virtual Machines, PMP treats this ESX operating system as a server similar to a Linux operating system. However, there is no difference in the data analysis. TIP: If you have VMware ESX operating system installed, and you have configured Virtual Machines, PMP treats this server as a VM host. [. . . ] A smaller value can be used for servers with more stable performance or when the sampling rate is higher. Manual Log Purge Manual Log Purge enables the recorded sessions for a logged server or network storage enclosure, logged in the PMP performance database and occupying hard disk storage space, to be deleted. Use this tool regularly to remove unwanted recorded sessions and reduce database size. To delete records in the performance database: 1. From the Systems Insight Manager console toolbar, select Options>Performance Management Pack Options>Manual Log Purge. [. . . ]