iSCSI port 3
Ethernet
management port
* Port 2 and 3 are available on 1Gb iSCSI MD3200i-series storage arrays only
Recognizing iSCSI Host Port Problems
Problems occurring due to misconfigured or nonfunctional iSCSI host ports on your storage array's RAID
controller modules can appear in a number of different ways. However, typical iSCSI host 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 set incorrectly in factory)
Basics: Cabling, Power and Network Switches
Simple issues, such as an improperly seated iSCSI 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 iSCSI host
port(s) and your host server and/or network switch.
If you are using a network switch, verify the following:
2.
All active link and link status LEDs are lit (an unlit activity LED is not necessarily a
-
problem)
The Ethernet switch you are using matches the speed of your RAID controller module
-
(for example, do not use a 1GB switch on a 10Gb iSCSI storage array)
Do not connect an Ethernet switch with a speed of less than 1Gb to the storage array
-
Your switch speed settings in MD Storage Manager match settings on your host server
-
(see Using Ethernet Jumbo Frames)
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.)
4. Ensure that all cabling and connectors are functional. If uncertain, swap current cables with
known good cables and determine whether the problem resolves.
*
192.168.133.101
192.168.128.101
192.168.133.102
255.255.255.0
192.168.128.102
255.255.255.0
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