Sun Microsystems SL8500 manual Dynamic World Wide Name, 1 Library Configuration Entries

Models: SL8500

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TABLE 2-1Library Configuration Entries

Dynamic World Wide Name

Complete or verify the following fields to make the library and the drives operational:

TABLE 2-1Library Configuration Entries

Fields

Valid Values

Description

Transition State

Online

 

Offline

 

Forced offline

Online indicates that the library is available for operation.

Offline completes all outstanding jobs for the drive before taking it offline.

Forced offline (not recommended) immediately varies the drive offline; all outstanding jobs receive a device failure error.

TABLE 2-2Drive Configuration Entries

Fields

Valid Values

Description

 

 

 

Port X Enabled

True

Setting this value will turn on or off the physical port (A or B)

 

False

on the drive.

 

 

If you select False then the communication channel between

 

 

the host software and the drive is disabled.

 

 

The network software automatically configures the Port (A or

 

 

B) address. This is called soft mode addressing.

 

 

The arbitrated loop topology (hard ALPAs [Arbitrated Loop Physical

 

 

Addresses]) can not be enabled for the SL8500 library or drives.

Transition State

Online

 

Offline

 

Forced offline

Online indicates that the drive is available for operation.

Offline completes all outstanding jobs for the drive before taking it offline.

Forced offline (not recommended) immediately varies the drive offline; all outstanding jobs receive a device failure error.

Dynamic World Wide Name

Each connection (port) in a Fibre Channel environment must have a unique ID called the World Wide Name (WWN). The WWN is a 64-bit address that identifies each individual device, company, with vendor information.When enabled, dWWN assigns names to library drive slots rather than devices. When a drive is replaced, the new drive receives the same name as the one it replaced, thereby eliminating the need for system re-configuration There are three World wide Names reserved for each drive bay: Node, Port A, and Port B.

Changing the WWN feature must be coordinated with the system administrator and is usually enabled during installation.

Note – Both library and tape drives must have microcode or firmware that supports the dynamic World Wide Naming feature.

96154 • Revision K

Chapter 2 Configuration Information 29

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Sun Microsystems SL8500 manual Dynamic World Wide Name, 1 Library Configuration Entries, 2 Drive Configuration Entries