NEC Storage Software PathManager Manuale Utente Scaricare il pdf (Pagina 31)

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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