- Preface
- Product Overview
- Installing Cisco Fabric Manager
- Fabric Manager Server
- Authentication in Fabric Manager
- Fabric Manager Client
- Device Manager
- Using Cisco Fabric Services
- Configuring Ethernet Interfaces
- Configuring Virtual Interfaces
- Configuring Fibre Channel Interfaces
- Configuring N-Port Virtualization
- Configuring Domain Parameters
- Configuring VSAN Trunking
- Configuring and Managing VSANs
- Configuring and Managing Zones
- Distributing Device Alias Services
- Configuring Fibre Channel Routing Services and Protocols
- Managing FLOGI, Name Server, FDMI, and RSCN Databases
- Configuring SPAN
- Discovering SCSI Targets
- Configuring SAN PortChannels
- Advanced Features and Concepts
- Configuring FC-SP and DHCHAP
- Configuring Port Security
- Configuring Fabric Binding
- Configuring Fabric Configuration Servers
- Configuring Port Tracking
- Network Monitoring
- Performance Manager
- Nexus 5000 Management Software FAQ
- Troubleshooting Your Fabric
- Index
Discovering SCSI Targets
This chapter describes the SCSI LUN discovery feature provided in switches in the Cisco Nexus 5000 Series. It includes the following sections:
•
Information About SCSI LUN Discovery
•Displaying SCSI LUN Information
Information About SCSI LUN Discovery
Small Computer System Interface (SCSI) targets include disks, tapes, and other storage devices. These targets do not register logical unit numbers (LUNs) with the name server.
The name server requires LUN information for the following reasons:
•To display LUN storage device information so that a Network Management System (NMS) can access this information.
•To report device capacity, serial number, and device ID information.
•To register the initiator and target features with the name server.
The SCSI LUN discovery feature uses the local domain controller Fibre Channel address. It uses the local domain controller as the source FC ID, and performs SCSI INQUIRY, REPORT LUNS, and READ CAPACITY commands on SCSI devices.
The SCSI LUN discovery feature is initiated on demand, through CLI or SNMP. This information is also synchronized with neighboring switches, if those switches belong to the Cisco Nexus 5000 Series.
This section includes the following topics:
•About Starting SCSI LUN Discovery
•About Initiating Customized Discovery
•Initiating Customized Discovery
About Starting SCSI LUN Discovery
SCSI LUN discovery is done on demand.
Only Nx ports that are present in the name server database and that are registered as FC4 Type = SCSI_FCP are discovered.
Starting SCSI LUN Discovery
To begin SCSI LUN discovery using Device Manager, perform this task:
Step 1 Choose FC > Advanced > LUNs.
You see the LUN Configuration dialog box as shown in Figure 21-1.
Figure 21-1 LUN Configuration Dialog Box
Step 2 Set StartDiscovery to local, remote or both.
Step 3 Choose the DiscoveryType and OS.
Step 4 Click Apply to begin discovery.
About Initiating Customized Discovery
Customized discovery consists of a list of VSAN and domain pairs that are selectively configured to initiate a discovery. The domain ID is a number from 0 to 255 in decimal or a number from 0x0 to 0xFF in hex.
Initiating Customized Discovery
To initiate a customized discovery using Device Manager, perform this task:
Step 1 Click the VSAN drop-down menu and choose the VSAN in which you want to initiate a customized discovery.
Step 2 Choose FC > Advanced > LUNs.
You see the LUN Configuration dialog box.
Step 3 Set StartDiscovery to local, remote or both.
Step 4 Fill in the DiscoveryType and OS fields.
Step 5 Click Apply to begin discovery.
Displaying SCSI LUN Information
To display the results of the discovery using Device Manager, perform this task:
Step 1 Choose FC > Advanced > LUNs
You see the LUN Configuration dialog box.
Step 2 Click the LUN tab or the Targets tab.
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