AS400 CPU% consuming resources

180 pts.
Tags:
AS/400
Consuming Resources
CPU
AS400 - system CPU % use is 184 to 199 (fullly used) but there are NO jobs BATCH or Interactive jobs that are consuming the resurces, how I can check why the system is consuming the resources?

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i check this link

http://itknowledgeexchange.techtarget.com/itanswers/iseries-4/

Answer by NORDAN suggest to check “WRKSYSACT” command helps me to find out my problem

I found there is one task by name ” VLTAK” is consuming 100+ % CPU utli but its not consuming anything from (total syn I/O, total Asysn I/O or DB CPU util) so please i want to know what is this task VLTASK running on our i series and what will be the solution to run our system normally as this problem causes our system(iseries) very very slow.

Thanks,
Syed Muneer
AS400 System Administrator
Riyadh, Saudi Arabia.
smuneer@panda.com.sa
smuneerh@yahoo.com

Discuss This Question: 3  Replies

 
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  • Sufii
    VLTASK is a system task, which writes entries to VLIC log. If it takes a lot of CPU, it means that smth is wrong and some process is generating lots of entries in the log. Have a look at the log: STRSST - 1 - 5 -1 - . You may also look at other unusual activities on system - QSYSOPR, history log, joblogs, etc. - all the usual places you look when smth goes wrong.
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  • Sufii
    VLTASK is a system task, which writes entries to VLIC log. If it takes a lot of CPU, it means that smth is wrong and some process is generating lots of entries in the log. Have a look at the log: STRSST - 1 - 5 -1 - . You may also look at other unusual activities on system - QSYSOPR, history log, joblogs, etc. - all the usual places you look when smth goes wrong. Sufiyan Kakingarae AS400 Specialist India kakingarae(at)gmail(dot)com
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  • naresh1984
    Emergency fix for this problem .We need to IPL the system first and bring back the System CPU% to normal. We can’t kill this job to reduce this CPU % .Only way we need to IPL the system. Then call the IBM and get the PTF’s . After the PTF installation do the IPL once again and then the problem will be resolved. We have tried in our environment its works.
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