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PowerVM Active Memory Sharing (AMS) part 4 Monitor

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Published on Feb 28, 2013

In this movie we show "topas -C" and "vmstat -h 2" monitoring the simple AMS setup from the previous movie. We see at the whole machine level (with topas -C) the current LPARs use of memory. Both the LPARs using the shared memory pool and dedicated memory LPARs. Then AMS LPARs making room (loaning memory) for a newly starting Logical Partition that needs memory from the shared pool. Then a busy LPAR which is grabbing more memory pages due to high memory demand program takes more memory from the other LPARs. Finally, we watch at the LPAR level (with vmstat -h), it giving up memory for another high memory demand LPAR.

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