NEC Storage Software PathManager Uživatelský manuál stáhnout pdf (Strana 51)

Chapter 4 Operating NEC Storage PathManager

C:\>spscmd -avail :::

C:\>spscmd -getlun

*** LogicalUnit #0 ***

0: Priority=1, PathNumber=4:0:0:0

1: Priority=2, PathNumber=5:0:1:0

2: Priority=3, PathNumber=6:0:2:0

> 3: Priority=4, PathNumber=7:0:3:0

*** LogicalUnit #1 ***

0: Priority=1, PathNumber=4:0:0:1

1: Priority=2, PathNumber=5:0:1:1

2: Priority=3, PathNumber=6:0:2:1

> 3: Priority=4, PathNumber=7:0:3:1

C:\>

If the HBA driver is reinstalled, priority setting information may be lost. After installing the HBA

driver, make sure to check the settings for priority and make settings again as needed.

(2) Failback method

When NEC Storage PathManager is installed, the failback method is set to standby failback. This is based

on a policy that once failures occur in a path, that path should not be used until its complete recovery is

confirmed. This setting can avoid unnecessary switching of paths due to repetition of failover and failback

by unstable paths.

(3) MSCS liaison

The MSCS function is disabled when NEC Storage PathManager is installed.

(4) Path patrol

The following shows initial values in settings for the path patrol function.

IV-5

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NEC Storage Software PathManager Uživatelský manuál Strana 51