Saw the parameter offline now. But it is same as RSU calculating in order to include all reserved memory. In our case 8 GB /64MB =128 RSU=128 has the same meaning of RSU=OFFLINE.If RSU=OFFLINE is used ,MVS sees this amount of area also non-prefferable ,its effect will be same for defining RSU=somevalue that corresponds to all reserve memory amount Why not is : AS I read from some papers about RSU . It says that ,as you know, in order to make this non-preferable memory area be eligiable for being offlined sometime,MVS tries not to have long-term pages,SQA,CSA frames,non-swappable pages and fixed pages to this area. Which causes MVS to make page movements.MVS sees this 8 GB area as non-preffered area.When prefered area becomes full,MVS tries to expand through non-prefeered area and send message IRA005E.In this case when a swappable address space becomes non- swappable ,MVS tries to move it to another location.This causes page movements and high paging and in some APARs it mentiones spin loops years ago.I wander our impact of 8 GB.And ways of estimating this impact by investigating our workload and application type and environment...If someone read something different or experience something different let me know. Meral.
---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
