NEC NEC Storage PathManager 3.1, User Manual

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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 option of the spscmd to make settings for static load balancing.
The following image shows an example.
C:\>spscmd -getlun
*** LogicalUnit #0 ***
> 0: Priority=2, PathNumber=4:0:0:0
1: Priority=1, PathNumber=5:0:1:0
*** LogicalUnit #1 ***
> 0: Priority=2, PathNumber=4:0:0:1
1: Priority=1, PathNumber=5:0:1:1
C:\>
In this example, path 0 (path number 4:0:0:x) will be used when accessing logical units 0 and 1. Once the
settings for static load balancing are made, path 0 will be used to access logical unit 0 and path 1 will be used
to access logical unit 1.
C:\>spscmd -path 5:0:1:1
C:\>spscmd -getlun
*** LogicalUnit #0 ***
> 0: Priority=2, PathNumber=4:0:0:0
1: Priority=1, PathNumber=5:0:1:0
*** LogicalUnit #1 ***
0: Priority=1, PathNumber=4:0:0:1
> 1: Priority=2, PathNumber=5:0:1:1
C:\>
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