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NEC
PathManager user manual
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© NEC Corporation 2003, 2004
No part of the contents of
this book may be reproduced or
transmitted in any form without permission of NEC Corporation.
The contents of this book may be modi
fied without notice in the future.
Contents
Main
Page
Preface
iii
Page
Contents
i
Page
Page
Chapter 1 Overview of NEC Storage PathManager
Page
Page
Page
Page
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Chapter 2 Installing NEC Storage PathManager
Page
Page
Page
Page
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Chapter 3 Functions of NEC Storage PathManager
Page
/1
/2/ /3
/4
III-4
Page
Page
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Page
254(Enabled) > 1(Enabled) > 254(Disabled) > 1(Disabled)
III-9
Priority High Low
Figure 3-3 Priority size relationship
Figure 3-4 -avail option
Page
Page
Page
Chapter 3 Functions of NEC Storage PathManager
LUN0 LUN1
Path 0 Path 1
III-13
Figure 3-5 Static load balancing
Page
3.4 Cluster liaison
3 3. .4 4 C Cl lu us st te er r l
ia ai is so on n
Page
Page
Page
Set only Request interval at 90 seconds
III-19
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III-21
Page
Page
Page
spsevent.log spsevent.log
III-25
Log storage folder spsevent.log.old
The file name is changed, and... a new one is created.
Figure 3-8 Storing SPS logs (2)
spsevent.log spsevent.log
Page
Page
III-28
Page
Chapter 4 Operating NEC Storage PathManager
Page
IV-4
(2) Failback method
(3) MSCS liaison
IV-5
(4) Path patrol
Page
IV-7
Chapter 4 Operating NEC Storage PathManager
Ex
NEC Storage
p
IV-8
4.2 Handling abnormalities
4 4.
s
es
ie
(2) Disk drive information
(3) Logical drive information
(4) Event logs
IV-10
(5) SPS logs
(6) Path information
IV-11
(7) Registry
Page
Page
Appendix A spscmd
[Name]
[Syntax]
[Description]
Page
Page
Page
Index
