scsimgr SCSI Management and Diagnostics utility on HP-UX 11i v3 (March 2008)

Introduction

This paper presents the scsimgr command introduced with HP-UX 11i v3 (B.11.31) to provide SCSI

management and diagnostics. It is intended for system administrators and other users of HP-UX 11i v3

(B.11.31) mass storage subsystem. The reader is assumed to have some basic knowledge of HP-UX

mass storage subsystem configuration and troubleshooting.

Readers not familiar with mass storage features of HP-UX 11i v3 are encouraged to read the

following documents first:

•

The Next Generation Mass Storage Stack HP-UX 11i v3

•

HP-UX 11i v3 Mass Storage Device Naming

The scsimgr command significantly extends and simplifies the management, diagnosis and

troubleshooting capabilities of mass storage subsystem on HP-UX.

Mass storage tools on previous HP-UX releases can be classified as:

• SCSI transport specific: these tools manage HBAs of specific SCSI transport. Examples

include fcmsutil for Fibre Channel (FC) and sasmgr for Serial Attached SCSI (SAS).

• Device class specific: these tools only manage a specific class of devices. An example is

diskinfo for block devices.

• Non specific to a SCSI transport or a device class, but with relatively limited diagnostic

capabilities: An example is scsictl.

The scsimgr command complements these tools by providing generic management capabilities for

all SCSI objects and subsystems, and by enabling device class or SCSI transport type specific

management capabilities through plug-in modules. Its extensible architecture allows future

consolidation of management and diagnostic tasks for the mass storage subsystem into a single tool.

This paper is divided into three parts:

• “

Main features and benefits” provides an overview of the capabilities of the scsimgr

command and their benefits.

• “General syntax and summary of options” gives the general syntax of the scsimgr

command and a brief description of its options.

• “Examples of using scsimgr” provides examples of scsimgr commands and output. Readers

interested in how to use scsimgr to accomplish some specific tasks can go directly to this

section.

Publication History

• February 2007: Initial Publication

• September 2007: Addition of “activate” command and devices supporting asymmetric

access, coincident with the September 2007 release of HP-UX 11i

• March 2008: Addition of dynamic update of attributes and “ddr_name” command