Emulex LightPulse LPe1105-M4 HBA Installationsanleitung PDF herunterladen (Seite 94)

EMC Host Connectivity with Emulex FC HBAs and FCoE CNAs for the Linux Environment

Installing and Configuring the Linux Host with the Emulex Driver

Using the Emulex lun_scan script

Contained within the Emulex driver applications kit is a script, called

lun_scan, which automates the SCSI scan requests for Emulex

adapters. This script is located in the following applications kit

directory:

enterprise_kitfiles/scripts/lun_scan

When the applications kit is installed, the lun_scan script is installed

into the

/usr/sbin/lpfc directory with the dfc and lputil utilities.

This script may be integrated into the system run-level transitions to

ensure that all devices are fully detected.

The

lun_scan script may be used to scan all of the Emulex HBAs or a

specific Emulex HBA.

If the

lun_scan script is run without specifying parameters, the

output is as follows:

[root@l82bi250 /]# lun_scan

Usage: lun_scan [ <#> [<#>] | all ]

where

<#> : is a scsi host number of a specific lpfc HBA that is to

be scanned. More than 1 host number can be specified.

all : indicates that all lpfc HBAs are to be scanned.

Example:

lun_scan all : Scans all lpfc HBAs

lun_scan 2 : Scans the lpfc HBA with scsi host number 2

lun_scan 2 4 : Scans the lpfc HBAs with scsi host number 2 and 4

Warning: Scanning an adapter while performing a tape backup should

be avoided.

Examples of the usage of the script are shown below.

1. To obtain the SCSI host number of the Emulex HBAs within the

system, refer to the

/proc filesystem:

[root@l82bi250 /]# ls /proc/scsi/lpfc/

2 3

In this particular system, the Emulex HBAs are listed as SCSI host numbers 2 and 3.

To scan on a single Emulex HBA, run the command plus the desired host number. For

example:

[root@l82bi250 /]# lun_scan 2

Scanning lpfc2, scsi host number : 2

1 2 ... 89 90 91 92 93 94 95 96 97 98 99 ... 181 182

Keine Kommentare

Emulex LightPulse LPe1105-M4 HBA Installationsanleitung Seite 94