10 Managing the SCSI Host Connection

Contents

• Add, Modify, or Delete a SCSI Host

• View the SCSI LUN Mapping

• View Actively Logged-In SCSI Hosts

• Behavior of an Unavailable Fibre Channel Port

• Is the FC connection working? There is no LINK light.

See Also

• "Assign Partitions to a SCSI Host and Alter LUN Assignment"

• "View the Host Connections of a Partition"

Add, Modify, or Delete a SCSI Host

The library automatically detects SCSI hosts connected to the SAN. However, you can manually add, modify, rename, or delete SCSI hosts.

Note:

You can only delete a host if it is currently logged out.

1. Click Partitioning in the left navigation area of the GUI.

2. Click the SCSI Host Configuration tab.

3. Click Add , or select a SCSI host and then click Modify or Delete .

   • Host Alias - limited to 64 characters

   • World Wide Name - 16 characters (8 byte) hexadecimal fields not prefixed with "0x" (for example B97F877BF079F405)

See Also

• "Assign Partitions to a SCSI Host and Alter LUN Assignment"

• "View the Host Connections of a Partition"

• "View the SCSI LUN Mapping"

• "View Actively Logged-In SCSI Hosts"

View the SCSI LUN Mapping

In a non-partitioned library, all hosts are automatically connected to the default partition on LUN 0. After configuring partitioning, you can alter the LUN assignment and assign multiple partitions to each host (see "Assign Partitions to a SCSI Host and Alter LUN Assignment").

1. Click Partitioning in the left navigation area of the GUI.

2. Click the SCSI Host Configuration tab.

   Note:

   Users with service roles (see "User Roles") will see additional columns in this table to help diagnose SCSI connectivity issues.

View Actively Logged-In SCSI Hosts

The library lists actively logged in hosts and displays which ports the hosts are connected to. Additionally, you can view the LUN assignment of the hosts.

1. Click Partitioning in the left navigation area of the GUI.

2. Click the Active SCSI Hosts tab. The table only shows host that are actively logged into the library.

3. To view the LUN assignment, select a host and then click Show LUNs or see "View the SCSI LUN Mapping".

See Also

• "Add, Modify, or Delete a SCSI Host"

• "Assign Partitions to a SCSI Host and Alter LUN Assignment"

• "View the Host Connections of a Partition"

Behavior of an Unavailable Fibre Channel Port

The library controller comes standard with two FC ports (1 and 2). By default only port 1 is fully active (available). Port 2 is unavailable until you install the Redundant Control Paths (multi-port) hardware activation file (see "Add or Remove Optional Library Features").

The library can receive commands on an unavailable port. However, the unavailable port only fully supports Inquiry, Report LUNs, Report Target Port Groups, and Request Sense. For all other commands, the library terminates the command with Check Condition status and sets the sense key to Not Ready, Logical Unit Not Accessible, Target Port in Unavailable State.

For more information, see the SL4000 SCSI Reference Guide.

Is the FC connection working? There is no LINK light.

The Fibre Channel ports on the Library Controller card do not have lights to indicate there is a link. To see if the ports are connected to a host:

1. Click Hardware in the left navigation area of the GUI.

2. Click the FC Ports tab.

3. If a host is currently connected, the port Link State will be Up.

   Note:

   By default only FC port 1 is fully active (available) and can receive all supported SCSI commands. You must install the Redundant Control Paths (multi-port) activation file to fully activate port 2, see "Behavior of an Unavailable Fibre Channel Port".

See Also

• "Behavior of an Unavailable Fibre Channel Port"