Users Guide

Parameter Abbr. Argument Description

--mpio none none Configures Multipath I/O component only

--asm none none Configures ASM/LE component only

--noninteractive -n none Runs the eqlconfig utility noninteractively and accepts all

configuration defaults

--filename -f filename Specifies a configuration file name

eqltune Command Syntax

The command syntax is as follows:

eqltune [command] [parameters]

[--version]

[ --help | -h]

[--verbose | -v | -vv]

[--quiet | -q]

[check [--verbose | -v | -vv][--quiet | -q]]

[fix [--verbose | -v][--quiet | -q]]

[list [--verbose | -v][--quiet | -q]]

The following table describes the eqltune utility’s commands and parameters.

Table 4. Eqltune Commands and Parameters

Command Abbr. Parameter Description

n/a none --version Optional. Shows version number and exits.

n/a -h --help Optional. Shows the eqltune utility’s options.

n/a -v --verbose Optional.

n/a -q --quiet Optional.

check none -v | -vv | -q Default. Performs all eqltune verifications. Optionally, use

with -v or -q flags. With no verbose flags, shows a

summary of all settings. With one verbose flag (-v),

shows all parameters as they are checked and displays

relevant help text. With two verbose flags (-vv), shows

all settings and all help text.

fix none -v | -vv | -q Optional. Repairs any Critical issues identified by the

utility.

list none -v | -q Optional. Lists all parameters that the eqltune utility

surveys but does not perform a verification. For

verification, run check mode (check). With one verbose

flag (-v), prints help text for each parameter.

Evaluating Output Information

As the eqltune utility executes, it verifies your installation in several categories.

Block Devices

The eqltune utility looks at every block device that corresponds to an iSCSI session on a PS Series array. Most settings examined by the

eqltune utility only provide suggestions because the optimal values are dependent on the expected I/O load on the volume. The critical

block device verification is the SCSI device timeout value. HIT/Linux configures the timeout value, based on the EqualLogic udev rules

installed with HIT/Linux. Example rules are also provided in the installed udev file that demonstrate how to set other block device

settings.

Installing and Configuring HIT/Linux