Cisco Systems MDS 9000 setup guide Enters configuration mode

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Chapter 35 Configuring iSCSI

Configuring iSCSI

Common mechanisms of identifying members in Fibre Channel Zone are the following (see Chapter 19, “Configuring and Managing Zones” for details of Fibre Channel Zoning):

Fibre Channel device pWWN

Interface and Switch WWN. Device connecting via that interface is within the zone:

In the case of iSCSI, behind an iSCSI interface multiple iSCSI devices may be connected. Interface based zoning may not be useful because all the iSCSI devices behind the interface will automatically be within the same zone.

In transparent initiator mode (where one Fibre Channel virtual N port is created for each iSCSI host as described in the “Transparent Initiator Mode” section on page 35-11) if an iSCSI host has static WWN mapping then the standard Fibre Channel deice pWWN-based zoning membership mechanism can be used.

Zoning membership mechanism has been enhanced to add iSCSI devices to zones based on the following:

IP address/mask (IP subnet)

Symbolic-node-name (IQN)

For iSCSI hosts that do not have a static WWN mapping, the feature allows the IP address or iSCSI node name to be specified as zone members. Note that iSCSI hosts that have static WWN mapping can also use these features. IP address based zone membership allows multiple devices to be specified in one command by providing the subnet mask.

Note In proxy initiator mode, all iSCSI devices connecting to an IPS port gain access to the Fibre Channel fabric via a single virtual Fibre Channel N port. Thus, zoning based on the iSCSI node name or IP address will not have any effect. If zoning based on pWWN is used then all iSCSI devices connecting to that IPS port will be put in the same zone. To implement individual initiator access control in proxy initiator mode, configure a iSCSI ACL on the virtual target (see the “iSCSI ACL Based Access Control” section on page 35-21).

To add an iSCSI initiator to the zone database, follow these steps:

 

Command

Purpose

Step 1

Enters configuration mode.

 

 

 

Step 2

zone name iSCSIzone vsan 1

 

switch(config-zone)

switch(config-zone)#member symbolic-nodename iqn.1987-02.com.cisco.initiator1

switch(config-zone)#no member symbolic-nodename iqn.1987-02.com.cisco.init1

switch(config-zone)# member ip-address

10.50.1.1

switch(config-zone)# no member ip-address

10.50.1.1

switch(config-zone)# member pwwn

20:00:00:05:30:00:59:11

switch(config-zone)# no member pwwn

20:00:00:05:30:00:59:11

Cisco MDS 9000 Family Configuration Guide

OL-6973-03, Cisco MDS SAN-OS Release 2.x

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Contents Configuring iSCSI 35-2 Fibre Channel SAN View-iSCSHI Host as an HBA ISCSI to FCP Fibre Channel RoutingEnabling iSCSI Creating iSCSI InterfacesPresenting Fibre Channel Targets as iSCSI Targets Dynamic MappingDynamic Target Mapping LUN2Static Mapping Statically Mapped iSCSI TargetsISCSI Virtual Target Configuration Examples Assigning iSCSI Node Names35-9 Presenting iSCSI Hosts as Virtual Fibre Channel Hosts Initiator IdentificationTransparent Initiator Mode Initiator Presentation Modes10 Virtual Host HBA Port Dynamic Mapping Making the Dynamic Initiator WWN Mapping Static Proxy-Initiator Mode Multiplexing IPS Ports Vsan Membership for iSCSI Example of Vsan membership for iSCSI devices Advanced Vsan membership for iSCSI hosts ISCSI Access ControlFibre Channel Zoning Based Access Control Enters configuration mode ISCSI ACL Based Access Control Enforcing Access Control Config t Iscsi authentication Chap Restricting iSCSI Initiator Authentication Mutual Chap AuthenticationISCSI Immediate Data and Unsolicited Data Features ISCSI Interface Advanced Features ISCSI Listener Port TCP Tuning ParametersQoS ISCSI Routing ModesPass -Thru Example 35-1 Displays the iSCSI Interface Information Displaying iSCSI InformationDisplaying iSCSI Interfaces Data-in 0 pdus, 0 bytes Switch# Iscsi2/1 WWNs TMF REQ0NWWN Displaying Global iSCSI Information Bytes TX 8712, RX 0 Number of connection 1 Connection #1 Vsan ID 5, Fcid Vsan ID 1, Fcid 0x6c0203 Switch# ISCSI initiators IP address Switch# show iscsi initiator configured Displaying iSCSI User Information Transparent Target FailoverDisplaying iSCSI Virtual Targets Logical View ISCSI HA with Host Not Having Any Multi-Path Software Storage Port Failover LUN Trespass Multiple IPS Ports Connected to the Same IP Network Multiple Gigabit Ethernet Interfaces in the Same IP Network Lqn.com.cisco.mds.5-3.gw.p1 Lqn.com.cisco.mds.2-1.gw.p1VRRP-Based High Availability Network Lqn.com.cisco.mds.vr1.gw.p1ISCSI Authentication Setup Guidelines and Scenarios Ethernet PortChannel-Based High AvailabilityNo Authentication Chap with Local Password Database Chap with External Radius ServerISCSI Transparent Mode Initiator Host ISCSI-zone-1 10.11.1.10 Iscsi-zone-1 Iscsi-zone-2 Target Page IP address of the iSCSI Target Storage Device Requiring LUN Mapping Show iscsi initiator Configured nWWN ISCSI initiator in name server Initiator in name server Page About iSCSI Storage Name Services About iSNS Client Functionality Verifying iSNS Client Configuration Show isns profile counters Displays iSNS QueriesDiscover Example 35-22 Displays Tagged iSNS InterfacesConfiguring iSNS Servers Enabling the iSNS Server ISCSI Configuration DistributionConfiguring the ESI Retry Count ISNS Client Registration and Deregistration Target Discovery Displays Explicitly Registered Objects Node Type Target1 Node Index Node type attribute in a compact format one per line Entity Index Node Type Target1 TCP Example 35-41and Example Default Settings Parameters Default
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MDS 9000 specifications

Cisco Systems MDS 9000 series is a line of storage networking switches designed to address the unique demands of enterprise-level data centers. These switches provide high-performance solutions for connecting various storage devices, including traditional disk arrays, solid-state drives, and tape libraries. The MDS 9000 series is built for scalability, high availability, and advanced security, making it an ideal choice for organizations looking to optimize their storage infrastructure.

One of the standout features of the MDS 9000 series is its support for Fibre Channel and FICON protocols, which enable seamless integration with various storage technologies. This versatility is crucial for organizations that may be using a mix of applications and storage performance requirements. The switches support multiple speeds, including 1G, 2G, 4G, 8G, and even 16G Fibre Channel rates, ensuring that they can adapt to evolving storage needs.

The MDS 9000 is known for its advanced features in terms of management and automation. Cisco provides intelligent automation capabilities to enhance operational efficiency. Features like Flow Vision and intelligent network services allow for deep visibility into storage environments, enabling administrators to monitor performance, troubleshoot issues, and optimize resource allocation effectively. This level of visibility helps organizations to mitigate risks and ensure data availability.

Security is another paramount consideration for the MDS 9000 series. The switches are equipped with a range of security features, including role-based access controls, encryption technologies, and zoning options. These capabilities help safeguard sensitive data and ensure compliance with industry regulations, making the MDS 9000 a trusted choice for enterprises dealing with critical data.

The architecture of the MDS 9000 series is designed for high availability and resiliency. With redundant power supplies and cooling systems, these switches minimize downtime and ensure continuous operation. Additionally, they offer advanced features like non-disruptive software upgrades, which eliminate the need for scheduled outages during firmware updates.

In summary, the Cisco Systems MDS 9000 series offers a robust set of features tailored for enterprise storage networking. Its support for various protocols, intelligent management capabilities, and high availability characteristics make it a preferred choice for organizations seeking to optimize their storage infrastructure for both current and future needs. By investing in the MDS 9000 series, businesses can enhance their operational efficiency, ensure data security, and maintain a competitive edge in today's data-driven landscape.