NEC Storage Software NEC Storage PathManager User’s Manual (Windows version) IS201-5E

Chapter 1 Overview of NEC Storage PathManager This service offers a log extract function that writes log information related to NEC Storage PathMana

Chapter 1 Overview of NEC Storage PathManager NEC Storage Express5800Storage PathManager Figure 1-2 Single-server configuration 1..3.2 MMulti

Chapter 1 Overview of NEC Storage PathManager 1..3.3 CCluster configuration 11.33..33 Clluusstteerr ccoonnffiigguurraattiioonn Below is an exampl

Part II Installation PPaarrtt IIII IInnssttaallllaattiioonn

Chapter 2 Installing NEC Storage PathManager Chapter 2 Installing NEC Storage PathManager 2.1 Operating environment 22..11 OOppeerraattiinngg een

Chapter 2 Installing NEC Storage PathManager After installing NEC Storage PathManager and before starting its operation, make sure to read "C

Chapter 2 Installing NEC Storage PathManager Make sure to use HotFix (Q323289_W2K_SP4_X86_EN.exe) contained in the Setup CD when installing NEC Sto

Chapter 2 Installing NEC Storage PathManager When turning on the server after uninstalling NEC Storage PathManager, make sure that the connection

Part III Functions PPaarrtt IIIIII FFuunnccttiioonnss

© NEC Corporation 2003, 2004 No part of the contents of this book may be reproduced or transmitted in any form with

Chapter 3 Functions of NEC Storage PathManager Chapter 3 Functions of NEC Storage PathManager This chapter describes functions that NEC Storage P

Chapter 3 Functions of NEC Storage PathManager 3..1.1 PPaaath state 33.11..11 Ptthh ssttaattee There are roughly four types of path state: /1/

Chapter 3 Functions of NEC Storage PathManager C:\>spscmd -getlun *** LogicalUnit #0 *** > 0: Priority=2, PathNumber=4:0:0:0 1: Priority

Chapter 3 Functions of NEC Storage PathManager When devices become completely invisible due to disconnection of the FC cable for example, the corre

Chapter 3 Functions of NEC Storage PathManager C:\>spscmd -getlun -v *** LogicalUnit #0 *** State=0x0 Config=0x0 LBMode=0x0 LogialDiskNumbe

Chapter 3 Functions of NEC Storage PathManager of their number. For other logical units, the paths will be displayed in the order of priority. If

Chapter 3 Functions of NEC Storage PathManager order of priority, from the highest to the lowest for each I/O. After the path with the lowest pr

Chapter 3 Functions of NEC Storage PathManager A path with disabled priority will be excluded from the decision process of the order of path use by

Chapter 3 Functions of NEC Storage PathManager The following image shows an example when the -avail option is used. C:\>spscmd -getlun *** Lo

Chapter 3 Functions of NEC Storage PathManager When using the -path option to specify a path, a path number (PathNumber) displayed in the -getlun

Preface This document illustrates how to use NEC Storage PathManager. NEC Storage PathManager multiplexes paths between a server and a storage unit

Chapter 3 Functions of NEC Storage PathManager specified integer. C:\>spscmd -getlun *** LogicalUnit #0 *** > 0: Priority=2, PathNumber=4:

Chapter 3 Functions of NEC Storage PathManager LUN0 LUN1 Path 0 Path 1 Figure 3-5 Static load balancing Use the -path option or the -swap

Chapter 3 Functions of NEC Storage PathManager It is possible to confirm that static load balancing is in effect once the -path option is applied t

Chapter 3 Functions of NEC Storage PathManager for dynamic load balancing must be set for each unit. Second argument 0: do not execute dynamic load

Chapter 3 Functions of NEC Storage PathManager C:\>spscmd -getmscsmode MSCS : Disable C:\>spscmd -setmscsmode E C:\>spscmd -getmscsmode

Chapter 3 Functions of NEC Storage PathManager for use. If the I/O results in an error or if it is not complete before time-out, the paths are r

Chapter 3 Functions of NEC Storage PathManager 3..5.3 SSeeettings for path patrrol 33.55..33 Sttttiinnggss ffoorr ppaatthh ppaattrooll Use the

Chapter 3 Functions of NEC Storage PathManager (Recovery check is not for Windows Server 2003.) /2/ Request interval The path patrol service issue

Chapter 3 Functions of NEC Storage PathManager [For Windows Server 2003] C:\>spscmd -getwatcher Health check : Enable Request interval : 30 se

Chapter 3 Functions of NEC Storage PathManager LUN0 LUN1 Path 0 Path1 LUN0 LUN1 Path0 Path 1 ? ? Failures ? ? Recovery Figure

Chapter 3 Functions of NEC Storage PathManager 3..6.2 SSeeelecting a method of failback 33.66..22 Slleeccttiinngg aa mmeetthhoodd ooff ffaaiil

Chapter 3 Functions of NEC Storage PathManager 3..6.3 MMaaanual failback 33.66..33 Mnnuuaall ffaaiillbbaacckk When the abovementioned recovery c

Chapter 3 Functions of NEC Storage PathManager 3.7 Log extraction 33..77 LLoogg eexxttrraaccttiioonn This function outputs log information rela

Chapter 3 Functions of NEC Storage PathManager spsevent.log spsevent.log Log storage folderspsevent.log.old The file name is changed, and... a new

Chapter 3 Functions of NEC Storage PathManager 3..7.2 EEvvvent logs 33.77..22 Eeenntt llooggss Among the pieces of information stored in the SPS

Chapter 3 Functions of NEC Storage PathManager 3.8 Message(ESMPRO liaison) 33..88 MMeessssaaggee((EESSMMPPRROO lliiaaiissoonn)) The message fun

Chapter 3 Functions of NEC Storage PathManager If you would like to use the Alert Manager feature of ESMPRO Manager, you have to set up the registr

Part IV Operation PPaarrtt IIVV OOppeerraattiioonn

Chapter 4 Operating NEC Storage PathManager Chapter 4 Operating NEC Storage PathManager 4.1 Operation in normal state 44..11 OOppeerraattiioonn i

Chapter 4 Operating NEC Storage PathManager During redundant operation, multiple paths are displayed under each "LogicalUnit." The examp

Contents PART I OVERVIEW -------------------------------------------------------------------------------------------------------------------- I-1

Chapter 4 Operating NEC Storage PathManager /3/ For an already recognized path to an already recognized logical unit, the state of priority will b

Chapter 4 Operating NEC Storage PathManager C:\>spscmd -avail ::: C:\>spscmd -getlun *** LogicalUnit #0 *** 0: Priority=1, PathNumber=4:0:

Chapter 4 Operating NEC Storage PathManager [For Windows 2000] C:\>spscmd -getwatcher Health check : Enable Recovery check : Enable Request

Chapter 4 Operating NEC Storage PathManager take up to a minute longer for NEC Storage PathManager to recognize path failures due to execution of fai

Chapter 4 Operating NEC Storage PathManager ???????? ? ? ? ?Express5800NEC StorageStoragePathSaviorPriority: 4 2 3 1Storage PathM

Chapter 4 Operating NEC Storage PathManager 4.2 Handling abnormalities 44..22 HHaannddlliinngg aabbnnoorrmmaalliittiieess 4..2.1 FFAQs and troub

Chapter 4 Operating NEC Storage PathManager /2/ Select [System Information] from the tree. /3/ Select [Action] -> [Save as System Information File

Chapter 4 Operating NEC Storage PathManager Then starting from step /2/ above, select [Application] instead of [System] to collect application logs u

Apppendix AApppeennddiixx

Appendix A spscmd Appendix A spscmd [Name] spscmd - Settings for NEC Storage PathManager and display of its status. [Syntax] spscmd –avai

Appendix A spscmd spscmd –failbackall It executes failback targeting all paths that are unavailable for use. spscmd –getfbmode

Appendix A spscmd It displays settings for path control. Health check: Settings for health check (Enable/Disable) Recovery chec

Appendix A spscmd state = Enable or E: MSCS liaison is enabled state = Disable or D: MSCS liaison is disabled spscmd –setwatch

Index Information gathering necessary in case of failures .. IV-9 A Initial settings ... IV-

Priority size relationship ...III-9 ProductId ...

Part I Overvview PPaarrtt II OOvveerrviieeww

Chapter 1 Overview of NEC Storage PathManager Chapter 1 Overview of NEC Storage PathManager NEC Storage PathManager software multiplexes paths bet

Chapter 1 Overview of NEC Storage PathManager during the course of switching the paths. Applications can continue their processing without being