Dell PowerStore 3000T EMC PowerStore Host Configuration Guide - Page 36

6 Host Configuration for AIX This chapter contains the following topics: Topics: • Recommended Configuration Values Summary • Fibre Channel Configuration • Dell EMC AIX ODM Installation Recommended Configuration Values Summary The following table summarizes all used and recommended variables and their values when configuring hosts for AIX. NOTE: Unless indicated otherwise, use the default parameters values. Validation To clarify the above note for using default parameter settings unless stated otherwise in this chapter, make sure that the following are set per the default OS setting: • LUN and HBA queue depth • HBA timeout Impact Stability & Performance Severity Recommended Fibre Channel Configuration: No more than Stability & Performance eight (8) paths per LUN should be used with an AIX host that is connected to PowerStore. LUN Queue Depth: If I/O throttling is required, the default depth value of 256 should be modified to a lower value. Performance Mandatory Recommended HBA FC max I/O size: max_xfer_size should be set to 1 MB. Performance Recommended ODM Minimum Version: DellEMC.AIX.6.2.0.0.tar.Z Stability Stability To enable Fast I/O Failure for all fscsi devices, Stability and Performance Warning set the fscsi device attribute set fc_err_recov to fast_fail To enable dynamic tracking of FC devices, set: dyntrk= yes Stability and Performance Warning Refer to Section For further details, refer to OS and HBA documentation. Fibre Channel Configuration Queue Depth Fibre Channel Adapter Device Driver Maximum I/O Size Dell EMC ODM Installation Fast I/O Failure for Fibre Channel Devices Dynamic Tracking 36 Host Configuration for AIX