Cisco MDS 9000 Family Data Mobility Manager Configuration Guide
Getting Started
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Getting Started

Table Of Contents

Getting Started

Installing Cisco MDS DMM Software

Using DMM Software Licenses

DMM Management Installation and Configuration Tools

DMM CLI

DMM GUI (Fabric Manager)

Installing Fabric Manager

Configuring SSH on the Switch

Configuring IP Connectivity

Enabling the DMM Feature

Enabling DMM with the CLI

Enabling DMM with Fabric Manager

Configuring Migration Rate

Configuring Migration Rate Using the CLI

Configuring Migration Rate Using Fabric Manager


Getting Started


This chapter describes how to install and configure the Cisco MDS DMM software. The required tasks are described in the following sections:

Installing Cisco MDS DMM Software

Using DMM Software Licenses

DMM Management Installation and Configuration Tools

Configuring IP Connectivity

Enabling the DMM Feature

Configuring Migration Rate

Installing Cisco MDS DMM Software

The Cisco MDS DMM feature runs on the Storage Service Module (SSM) in a MDS 9000 series switch.

The DMM software package is included in the SSI image as a part of the SAN-OS or NX-OS.

For information on how to install the SSM image, refer to Cisco MDS 9000 Family Storage Services Module Software Installation and Upgrade Guide.

Using DMM Software Licenses

You can use the Cisco MDS DMM software without a license for a period of 120 days.

To purchase a license for DMM, use one of the following product identifiers for the MDS 9500 family:

M95DMMS1K9 perpetual license for one SSM.

M95DMMTS1K9 time-based license (one SSM for 180 days).

Use one of the following product identifiers for the MDS 9200 family:

M92DMMS1K9 perpetual license for one SSM.

M92DMMTS1K9 time-based license (one SSM for 180 days).

You may purchase a DMM license for an SSM in a fabric that does not have a Fabric Manager license. In this configuration, you can open multiple fabrics in Fabric Manager and use the DMM functionality. Full Fabric Manager functionality is not available. For example, performance manager, desktop client remote login, and web client fabric reporting are not available without an Fabric Manager license.

For more information about installing or upgrading software licenses, refer to Cisco MDS 9000 Family NX-OS Licensing Guide.


Note If the DMM license for an SSM expires, all scheduled and in-progress jobs will continue to execute. You cannot create new jobs with an expired license.


DMM Management Installation and Configuration Tools

Cisco MDS DMM supports a CLI tool and a GUI tool for configuring and managing data migrations. The tools are described in these sections:

DMM CLI

DMM GUI (Fabric Manager)

DMM CLI

The Cisco MDS DMM feature uses the CLI on the MDS switch and on the SSM.

No DMM-specific tasks are required to install or configure the CLI. For additional information about the CLI, refer to "Related Documentation" section on page -x.

DMM GUI (Fabric Manager)

The Cisco MDS 9000 Fabric Manager, a Java-based GUI, manages Cisco MDS 9000 Family switches using SNMP. The GUI for the Cisco MDS DMM is integrated into Fabric Manager.

To use the DMM GUI, complete the following tasks:

Installing Fabric Manager

Configuring SSH on the Switch

Installing Fabric Manager

The DMM GUI software is bundled into the Fabric Manager software package.

For information about installing Fabric Manager software, refer to the Cisco Fabric Manager Fundamentals Configuration Guide.

Configuring SSH on the Switch

The DMM GUI communicates with the SSM using a secure shell protocol (SSH) connection. Before using DMM, you need to enable SSH on the switch that hosts the SSM.

For information about configuring SSH, see the SSH chapter of the Cisco Fabric Manager Security Configuration Guide and the Cisco MDS 9000 Family NX-OS Security Configuration Guide.

Configuring IP Connectivity

SSMs and the supervisor module in an MDS switch communicate over VSAN 1 using IP. You need to configure an IP subnetwork for VSAN 1 on the MDS switch.

SSMs communicate with their peer SSMs using the management IP network (See Figure 2-1). Each DMM-enabled SSM on the management IP network must have a unique subnetwork address configured for VSAN 1.

Configuring IP over Fibre Channel (IPFC) for an SSM consists of the following tasks:

Create the VSAN 1 interface and configure an IP address for this interface.

The IP subnet can use a private address space because these addresses will not be advertised. As noted, the subnet number needs to be unique for each SSM-enabled MDS switch that is connected to the same management IP subnetwork.

Create a CPP interface (with an IP address) on each SSM on the switch.

CPP IP addresses needs to be in the same subnet as the VSAN 1 interface.

Configure zoning.

The CPP interfaces and the VSAN 1 interface need to be zoned together.

Enable IPv4 routing.

Configure the default gateway for each CPP interface.

Configure the default-gateway for the CPP interface to point to the VSAN 1 IP address, so that all IP traffic from the CPP interface is routed to the management interface.

Configure static routes as required to access the peer SSMs.

Configure static routes in the switch to each SSM-enabled peer switch to enable routing of packets between peer SSMs.

Figure 2-1 IP Configuration

The following example is based on the configuration and subnetwork numbers shown in Figure 2-1. The example shows the configuration for MDS switch 1:

Create VSAN 1 and configure it with an IP address:

MDS-1# configure terminal
MDS-1(config)# interface vsan 1
MDS-1(config-if)# ip address 10.10.1.1 255.255.255.0
MDS-1(config-if)# no shutdown
MDS-1(config-if)# exit

Create the CPP IPFC interface, and configure an IP address:

MDS-1(config)# interface cpp 8/1/1
MDS-1(config-if)# ip address 10.10.1.6 255.255.255.0
MDS-1(config-if)# no shutdown
MDS-1(config-if)# exit

Configure a new zone to include the pWWN of the CPP interface on the SSM and the VSAN 1 interface on the supervisor:

MDS-1(config)# zone name DMM_IP_MGMT vsan 1 
MDS-1(config-zone)# member pwwn 22:00:00:20:37:39:15:09
MDS-1(config-zone)# member pwwn 21:00:00:e0:8b:05:76:28
MDS-1(config-zone)# exit

The zone created for the IPFC interfaces must be added to the existing zone set in VSAN 1 and the zone set must be re-activated to include the new zone. If a zone set does not exist in VSAN 1, create a zone set. Add the zone to the zone set and activate the zone set.

For additional information about creating and activating zone set, refer to the Cisco Fabric Manager Security Configuration Guide and the Cisco MDS 9000 Family NX-OS Security Configuration Guide.

Enable IPv4 routing:

MDS-1(config)# ip routing

Configure the default gateway for the SSMs:

MDS-1(config)# ip default-gateway 10.10.1.1 interface cpp 8/1/1

Configure static route to access the peer SSMs:

MDS-1(config)# ip route 10.10.2.0 255.255.255.0 172.22.43.94

You can also create a host specific route to point to the ipfc interface on the peer:

ip route 10.10.2.1 255.255.255.255 172.22.43.94

The following example shows the configuration for MDS switch 2 (see Figure 2-1):

MDS-2# configure terminal
MDS-2(config)# interface vsan 1
MDS-2(config-if)# ip address 10.10.2.1 255.255.255.0
MDS-2(config-if)# no shutdown
MDS-2(config-if)# exit

MDS-2(config)# interface cpp 8/1/1
MDS-2(config-if)# ip address 10.10.2.7 255.255.255.0
MDS-2(config-if)# no shutdown
MDS-2(config-if)# exit

MDS-2(config)# zone name DMM_IP_MGMT vsan 1 
MDS-2(config-zone)# member pwwn 22:00:00:20:25:19:25:11
MDS-2(config-zone)# member pwwn 21:00:00:c0:7d:76:04:15
MDS-2(config-zone)# exit

MDS-2(config)# ip routing

MDS-2(config)# ip default-gateway 10.10.2.1 interface cpp 8/1/1

MDS-2(config)# ip route 10.10.1.1 255.255.255.0 172.22.43.95

For additional information about configuring IPFC, refer to the Cisco Fabric Manager IP Services Configuration Guide and the Cisco MDS 9000 Family NX-OS IP Services Configuration Guide.

Enabling the DMM Feature

You can use the CLI or the Fabric Manager GUI to enable the DMM feature. The two methods are described in the following sections:

Enabling DMM with the CLI

Enabling DMM with Fabric Manager

Enabling DMM with the CLI

To enable DMM on an SSM and to provision ports to use the DMM feature, follow these steps:

 
Command
Purpose

Step 1 

switch# configure terminal

Enters configuration mode.

Step 2 

switch(config)# ssm enable feature dmm module slot

Enables DMM on the SSM module in the specified slot.

switch(config)# no ssm enable feature dmm module slot

Disables DMM on the SSM module in the specified slot.

Step 3 

switch(config)# ssm enable feature dmm interface slot/port - port

Enables DMM for the interface in the specified slot and port range.

Enabling DMM with Fabric Manager

To enable DMM for an SSM and MSM using Fabric Manager, and to provision ports to use the DMM service, follow these steps:


Step 1 Expand End Devices and then double-click the Intelligent Features folder in the Physical Attributes pane.

Choose either SSM or MSM to provision DMM.

a. For SSM, click the SSM tab.

You see the set of configured services in the Information pane as shown in Figure 2-2.

Figure 2-2 SSM Tab

b. For MSM, click the MSM tab.

You see the set of configured services in the Information pane as shown in Figure 2-3.

Figure 2-3 MSM Tab

Step 2 Click the Create Row icon (third button in the tool bar, directly above the SSM or the MSM tab).

You see the Create SSM dialog box shown in Figure 2-4.

Figure 2-4 Create SSM Dialog Box

Step 3 Select the switch and SSM module where you want to enable DMM.

Step 4 The Use All Ports on Module check box is checked by default. DMM does not support provisioning a subset of the ports on the card to use this service.

Step 5 From the feature drop-down list, select dmm.

Step 6 Click Create to enable the DMM service.


Configuring Migration Rate

When a migration job is created, you can configure the migration rate as fast, medium, or slow. Use the CLI or the Fabric Manager GUI to configure the values for these rates, as described in the following sections:

Configuring Migration Rate Using the CLI

Configuring Migration Rate Using Fabric Manager

Configuring Migration Rate Using the CLI

To configure the values associated with the fast, medium, and slow migration rates, follow this step:

Step
Command
Purpose

Step 1 

switch# config t

Enters the configuration mode.

Step 2 

switch(config)# dmm module module-id rate_of_migration fast rate medium rate slow rate


Sets the migration rate for the specified SSM module. The migration rate has a range of 1 to 200 and the units are megabytes per second (MB/s).

The default values for migration rate are as follows:

Slow: 10 MB/s

Medium: 25 MB/s

Fast: 60 MB/s

The following example sets the fast migration rate to 100 MB/s for the SSM in slot 4:

MDS-1(config)# dmm module 4 rate_of_migration fast 100 medium 25 slow 10

Configuring Migration Rate Using Fabric Manager

To configure the values to associate with the fast, medium, and slow migration rates, follow these steps:


Step 1 Expand End Devices and then double-click the Intelligent Features folder in the Physical Attributes pane.

You see the SSM services in the Information pane.

Step 2 Click the DMM Rate tab.

You see the set of configured services in the Information pane as shown in Figure 2-5.

Figure 2-5 Configuring Migration Rate

Step 3 Click in the table cell that you are configuring (Fast, Medium, or Slow).

Step 4 Enter the new value for the migration rate. The units are MB/s.

Step 5 Click the Save button to save the configuration values.



Note While configuring DMM with two hosts accessing the same storage port on a per job basis, the rate limit that gets applied will be the lower configured rate as the configured rate is the total bandwidth per existing storage port and not per job. Hosts with active sessions will have this bandwidth shared between them.