Set MAXFILEPROC to at least 64000 for the Web Client (Vantage Storage Point).

Products

• Vantage Storage Resource Manager
• GRAPHICAL MANAGEMENT INTERFACE

Issue/Introduction

What is the impact of not updating MAXFILEPROC to at least 64000?  Is increasing the USS system limit of MAXFILEPROC to at least 64000 necessary?

 

Environment

Vantage

Resolution

The Vantage WebUI server runs in USS under a specific user identity. This user has a limit of the number of files, directories, sockets and pipelines that can be used at the same time - MAXFILEPROC.

Everything running under the WebUI server identity must respect this limit. 

This parameter can be set for the user in RACF, TSS, and ACF2.

The value 64.000 is generally recommended by IBM - as you can check in the IBM documentation:

MAXFILEPROC

However, you can set it differently in your environment based upon your needs. For example, if the identity that is running the WebUI server is responsible also for running other tasks that have higher requirements, you can increase it.

Using your Mainframe Access Control product (RACF, TSS, ACF2), you can check the current setting of your MAXFILEPROC.