IBM Computer Hardware

Hardware Management Console (HMC) Case Configuration Study for LPAR Management 7

To calculate your desired and maximum memory values accurately, we

recommend that you use the LVT tool. This tool is available at:

http://www.ibm.com/servers/eserver/iseries/lpar/systemdesign.htm

Figure 1 shows an example of how you can use the LPAR validation tool to verify

a memory configuration. In Figure 1, there are 4 partitions (P1..P4) defined on a

p595 system with a total amount of 32 GB of memory.

Figure 1 Using LVT to validate the LPAR configuration

Contents

Main Redbooks Paper Hardware Management Console (HMC) Case Configuration Study for LPAR Management Dino Quintero Sven Meissner Andrei Socoliuc Introduction and overview Basic HMC considerations Page HMC connections Partitioning considerations Additional memory allocation in a partitioned environment Hypervisor and TCE Partition page tables Page Page Micro-partitioning Capacity on Demand HMC sample scenarios Examples of using capped/uncapped, weight, dynamic LPAR and CoD features Cluster Enabling ssh access to HMC Page Page Enabling On/Off CoD for processor and memory Page Page Page 20 Using the command line. Example 6 shows how to allocate 6 GB of memory to partition julia. Page Page Page Considerations for capped/uncapped partitions Example of using a single uncapped partition Page 26 Example of using two uncapped partitions and the weight Page Automating HMC tasks Page Page Page Page Comparing profile values with current settings 34 Here is a sample output from the script shown in Example15 on page 33. High availability considerations for HMCs High availability HMCs in various network environments Page Page Page APPENDIX Access to the ASMI menu Configuring a secure connection for WebSM Page Page Page Page Page Page Page Enabling NTP on the HMC Microcode upgrades Page Page Page Referenced Web sites Page The team that wrote this Redpaper Page Notices 58 Trademarks