HP PRM Version C.03.
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Contents 1 Announcement...........................................................................................4 2 What’s new in this version...........................................................................5 3 Compatibility information and installation requirements ..................................6 Disk and memory requirements...................................................................................................6 Software requirements...............................................
1 Announcement HP Process Resource Manager (PRM) Version C.03.06 supports: • HP-UX 11i v 2 (B.11.23) operating system running on either HP 9000 servers or HP Integrity servers • HP-UX 11i v3 (B.11.31) operating system running on either HP 9000 servers or HP Integrity servers HP PRM provides an efficient and flexible way to manage resource allocation at times of peak system load.
2 What’s new in this version The HP PRMSIMTools Version C.03.06 contain better error handling capabilities.
3 Compatibility information and installation requirements The following HP PRM product is available for HP 9000 servers or HP Integrity servers running HP-UX 11i v2 (B.11.23) from September 2004 or later or HP-UX 11i v3 (B.11.31): • HP PRMSIMTools Version C.03.06 (PRMSIMTools) • B3835DA Version C.03.06 • PRMKernelSW Version C.03.06 • PRMLibraries Version C.03.06 Disk and memory requirements PRM system requirements are given in the following table, based on the PRM bundle.
Installation procedures The sections below explain how to install the full PRM product, B3835DA, and the PRM interface in HP Systems Insight Manager, PRMSIMTools. Installation procedure for B3835DA Install the full PRM product, B3835DA, on systems where you want PRM to control resource allocations. To install the software: NOTE: If the PRM-Sw-Krn.PRM-KRN fileset is not installed or it is installed but its revision is older than the current revision (C.01.
. Configure PRM GUI and restart HP System Management Homepage (SMH). NOTE: This step assumes SMH is already installed. If not, install SMH before completing this step. (As of May 2005, SMH is available from the Applications DVD and the Operating Environment DVD. It is also available at http://www.hp.com/go/softwaredepot.) If you are going to use PRM’s interface available through SMH, perform the following steps: a. Configure the PRM interface by running: # /opt/prm/bin/prmsmhconfig -c b. Restart SMH.
3. Configure the PRM GUI for HP Systems Insight Manager (SIM) NOTE: This step assumes SIM is already installed. If not, install SIM before completing this step. (SIM is available from the Applications DVD and the Operating Environment DVD. It is also available at http://www.hp.com/go/softwaredepot.) If HP VSE Management Software A.03.00.00 or later is not installed If you do not have HP Virtual Server Environment Management Software A.03.00.
* These patches may have been superseded. You can use the patches listed here or their superseding patches. Compatibility with HP Integrity Virtual Machines HP Integrity Virtual Machines (Integrity VM) is a robust soft partitioning and virtualization technology that provides operating systems isolation, shared CPU (with sub-CPU granularity), shared I/O, and automatic, dynamic resource allocation. It is available for HP-UX 11i v2 running on HP Integrity servers.
Compatibility with online cell operations If you want to perform online cell operations, and: • Your PRM configuration contains memory records Stop memory management (prmconfig -d MEM), then after the online cell operation has completed, restart memory management (prmconfig -e MEM). • Your PRM configuration uses PSETs Reset PRM (prmconfig -r), then after the online cell operation has completed, restart PRM management (prmconfig -ie [-f file]).
4 Known problems and workarounds This section discusses problems and workarounds for HP PRM Version C.03.05. PRM does not support disk bandwidth management on VERITAS File System (VxFS) Issue PRM does not support disk bandwidth control on VxFS. The reason for this limitation is that VxFS does not support the implementation of I/O disk bandwidth that PRM relies on. The Unix File System (HFS) supported this feature, but when HP moved to VERITAS File System 4.
No PSET PRM group data from GlancePlus Issue GlancePlus has not been enhanced to recognize processor sets. If you have defined PRM groups based on processor sets in your PRM configuration, GlancePlus returns no information for these PRM groups. Workaround For configurations with processor sets defined, use the prmmonitor command instead of GlancePlus. Colons in alternate names Issue You get a message similar to: Cannot parse configuration record at line 3 -- contains too many fields.
The CPU scheduler that PRM uses schedules processes by: • Distributing all the processes from each PRM group in round-robin fashion starting from the same CPU every time (with the CPUs being cores or logical CPUs depending on whether Hyper-Threading is enabled) • Once all the processes are distributed, CPUs with spare cycles inherit processes from CPUs that are completely busy Because the round-robin distribution always starts with the same CPU, that CPU—and other CPUs at the start of the distribution—c
Network Node Manager and PRM’s SNMP structures Issue When you install the OpenView products after installing PRM, the OpenView networking products, including Network Node Manager, do not recognize PRM’s SNMP structures. Workaround Run the following command: # /opt/OV/bin/xnmloadmib -load /opt/prm/prm.my -replace This command is automatically run when you install PRM and when you boot the system. prmavail not showing VxVM disk groups Issue On HP-UX 11i v1 (B.11.11) and HP-UX 11i v2 (B.11.
Workaround To ensure that WLM works properly on a system with PRM C.03.04 or later, upgrade WLM to A.03.02 or later. When upgrading from WLM A.03.00 or earlier, upgrade WLM prior to upgrading PRM. prm2d dumps negative values in the syslog, though real memory pages are available Issue If you install PRM C.03.06, prm2d might dump negative values in the syslog (even when real memory pages are available), if the system is under memory pressure.
5 Patches and fixes in this version QXCR1001103447 The prmavail command shows negative values for available real memory page. For more information about negative memory values in syslog messages, see Chapter 4 (page 12).
6 Software availability in native languages The HP PRM C.03.05.01 manpages and user guide, and HP PRM C.03.06 release notes are available in English.
7 Security HP provides the HP-UX Bastille product, available at http://www.hp.com/go/softwaredepot at no charge, for enhancing system security.
8 What manuals are available Several related manuals are available. These manuals can be accessed at (http://www.hp.com/ go/hpux-core-docs. They are also available for order.
9 Providing feedback • Email your feedback to the PRM development team at the following address: prmfeedback@rsn.hp.com • For a forum with other PRM users, visit the IT Resource Center’s forum for HP-UX Workload/Resource Management: http://forums.itrc.hp.com/cm/ • For the latest patch information, white papers, and documentation, visit the Process Resource Manager web page: http://www.hp.
10 Training HP offers a course in HP-UX resource management using PRM. For information, including a course outline, visit: http://www.hp.com/education/courses/u5447s.
