Hi Denis, I think your using too much memory for file caching. Here's why:
a couple of things: your box is out of 'real' memory, 'fre' column. ignore 'r' and 'b', for now any number in the pi and po columns are bad The 'sr' search column is how many pages in the list where searched before 'fr' column number of pages where freed. As the others said IO wait is a problem. First tune 'vmtune'. This is my command from my TSM server, AIX 4.3.3 on a silver node - which is H50. /usr/samples/kernel/vmtune -f 256 -F 768 -u 32 -p 20 -P 70 -r 2 -R 64 -b 128 -l 65536 -B 547 -w 32000 Set the lower and upper free pages, f and F, 256 and 768 are good Experiment with p and P, but I would think P should be low for you. Try 70. r and R should be 2 and 64 What are your disks? SCSI? SSA? How much paging space do you have? 136237 pages of 'active virtual memory' is only 532 MB. Be really careful when you try this I CRASHED BOX WHEN I DID THIS: you can use vmtune -h to force 'P' to be a hard limit. Set this in rc.local. Email me more info. I like these problems. Miles ---------------------------------------------------------------------------------------------- Miles Purdy System Manager Farm Income Programs Directorate Winnipeg, MB, CA [EMAIL PROTECTED] ph: (204) 984-1602 fax: (204) 983-7557 "If you hold a UNIX shell up to your ear, can you hear the C?" ------------------------------------------------------------------------------------------------- >>> [EMAIL PROTECTED] 02-Jan-02 12:33:59 PM >>> Hello- I am having a memory problem. I am runnning AIX 4.3.2 on a H50. TSM is the only application running on the server. When I run vmstat I get the following... kthr memory page faults cpu ----- ----------- ------------------------ ------------ ----------- r b avm fre re pi po fr sr cy in sy cs us sy id wa 0 0 136233 202 0 3 2 99 210 0 52 240 66 17 30 16 37 1 3 136234 342 0 38 11 3727 4204 0 1322 6136 4665 12 11 3 74 2 3 136236 160 0 44 12 3728 5326 0 1324 5844 4644 10 11 2 76 1 3 136237 295 0 17 19 4113 5725 0 1305 7174 5091 13 10 3 74 0 3 136237 629 0 19 9 4240 7442 0 1316 7200 5082 14 13 5 68 Does this look normal to anyone? From my limited understanding of vmstat it looks like: CPU utilization is maxed out I have blocked processes (the b column) The scan rate (sr) column is very high. The server has 1Gig of memory. I'm really not sure how to tell how much is allocated to the OS and how much is allocated to TSM. Does anyone have any ideas or pointers is tuning memory for AIX? Do I need a memory upgrade? I started checking this because my server response is horrible. Thanks. Denis
