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Status Delivered
Workspace z/OS
Categories BCP_Storage Management (inc. RSM/ASM/VSM/DIV)
Created by Guest
Created on Feb 9, 2015

RELATED IDEAS

SVC DUMP generation causes an application time-out error

Before this, SVC DUMP generation from an address space has caused WLM time-out under our WebSphere Application Servers. SVC DUMPs generated tend to grow its size as customer system environments expand. Once SVC DUMP is generated, DUMPSRV puts DUMP data into its own DATASPACE and then we have heavy paging because of page-in for preparing rooms for SVC DUMP. It takes longer than WLM time-out value to generate SVC DUMP. An application under WebSphere Application servers with lower priority than SVC DUMP generation results in WLM time-out. We can not reduce WLM time-out value.

Basically we add more real storage for page-out address spaces and DATASPACE for SVC DUMP, but added real storage is used by another applications. AFQ(Available frame Queue) is not enough for sudden SVC DUMP generation.

We have one of ideas that dedicated real storage area for DATASPACE of DUMPSRV would be reserved for sure in case SVC DUMP is generated.

Please look at the comment section of MR1205066929, too.

Idea priority High
  • Guest
    Reply
    |     Apr 5, 2023
    Delivered with z/OS 3.1.
  • Guest
    Reply
    |     Feb 10, 2015

    Creating a new RFE based on Community RFE #65832 in product z/OS.

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