SAP Knowledge Base Article - Preview

3135386 - Failed to increase the value of 'max async I/Os per engine' in HP

Symptom

When trying to configure the 'max async I/Os per engine' parameter with bigger than default value, the config value and run value shows less than default value.

1> sp_configure "max async i/os per engine", 8192
2> go
1> sp_configure "max async i/os per engine"
2> go
 Parameter Name                     Default     Memory Used   Config Value   Run Value    Unit       Type
 max async i/os per engine        5000        0                     4992             4992           number  static


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Environment

  • SAP Adaptive Server Enterprise (ASE)

  • HP-UX on IA64 64bit

  • "allow sql server async I/O" parameter is enabled, "enable hp posix async i/o" parameter is disabled. 

Product

SAP Adaptive Server Enterprise 15.7 ; SAP Adaptive Server Enterprise 16.0

Keywords

MAX_CONCURRENT, /usr/include/sio/async.h , KBA , BC-SYB-ASE , Sybase ASE Database Platform (non Business Suite) , Problem

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