Setup Guide

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 Impact Severity Refer to Section
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
Stability & Performance Recommended For further details, refer to
OS and HBA
documentation.
Fibre Channel Configuration: No more than
eight (8) paths per LUN should be used
with an AIX host that is connected to
PowerStore.
Stability & Performance Mandatory Fibre Channel Configuration
LUN Queue Depth:
If I/O throttling is required, the default
depth value of 256 should be modified to a
lower value.
Performance Recommended Queue Depth
HBA FC max I/O size:
max_xfer_size should be set to 1 MB.
Performance Recommended Fibre Channel Adapter
Device Driver Maximum I/O
Size
ODM Minimum Version:
DellEMC.AIX.6.2.0.1.tar.Z
NOTE: When upgrading the connected
PowerStore system to PowerStoreOS
version 1.0.2.0.5.003 (or later), AIX
ODM version 6.2.0.1 is required when
using PowerStore.
Stability Stability Dell EMC ODM Installation
To enable Fast I/O Failure for all fscsi
devices, set the fscsi device attribute set
fc_err_recov to fast_fail
Stability and
Performance
Warning Fast I/O Failure for Fibre
Channel Devices
To enable dynamic tracking of FC devices,
set:
Stability and
Performance
Warning Dynamic Tracking
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