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Recognizing Issues Involving the Ethernet Management Port

Problems occurring due to misconfigured or nonfunctional Ethernet management ports on your storage

array's RAID controller modules can appear in a number of different ways. However, typical

management port issues may include:

−

Status LEDs on iSCSI ports not lit or indicating fault (refer to Table 2 for LED values)

−

Unable to ping an iSCSI port from the host server on the same subnet

−

Dynamic Host Configuration Protocol (DHCP) is unable to assign an IP address for one or more

of your RAID controller modules

−

Duplicate IP addresses appear (either manually set or multiple arrays with the same factory

default IP addresses)

Simple issues, such as an improperly seated Ethernet cable or a defective and/or powered-down

hardware component, are often the root cause of a number of problems. If a physical link error occurs

or you are unable to connect to a storage array in MD Storage Manager, it is always useful to perform a

simple, standard troubleshooting protocol:

1. Verify you have a solid, well-seated connection between the RAID controller module's Ethernet

management port(s) and your host server and/or network switch.

If you are using a network switch, verify the following:

All active link and link status LEDs are lit (an unlit activity LED is not necessarily a

problem)

The Ethernet switch you are using is compatible with your RAID controller module (for

example, is compatible with 1Gb MD3200i-series and/or 10Gb MD3600i-series arrays)

Do not connect an Ethernet switch with a speed of less than 1Gb to the storage array

3. Verify that MD-series storage array enclosures and RAID controller modules are powered on and

show the proper LED status configurations. (See Table 2.) For additional MD-specific LED

diagnostic information, see support.dell.com/manuals.

4. Ensure that all cabling and connectors are functional. If uncertain, swap current cables with

known good cables to determine if the problem is related.