Interface controller problems, Led indicators, Basic troubleshooting – HP EML E-series Tape Libraries User Manual
Page 61: Led indicators basic troubleshooting
Table 27 Interface Manager card LED fault isolation (continued)
Procedures
Indicators
Off
Blinks 4x per 5 second
interval
Blinks 1x per 5 second
interval
Off
•
Reset the Interface Manager card (see
).
•
If the Interface Manager card does not have access to the DHCP
server and the library firmware is at release 2.4 or greater, access
the CLI from a serial connection and execute the command set
network config eml
.
•
If the Interface Manager card does not have access to the DHCP
server and the library firmware is at an earlier version than 2.4,
use a valid service password to enter the IM CLI service mode then
use the set network config eml command.
•
If the problem persists, replace the Interface Manager card.
Interface Manager card is in discovery mode. If problem persists, it
can be due to an incomplete topology. Refer to
.
Blinks 2x per 5 second
interval
Off
Processes are running. If the problem persists, check the configuration
and the IP address.
Blinks 3x per 5 second
interval
Off
Interface controller problems
Most problems with the interface controller occur during the initial installation. Before proceeding
with advanced troubleshooting techniques, make sure that all connections are correct and review
the configuration and firmware. If a new interface controller was installed, the library may need
to be rebooted for the controller configuration to be set.
LED indicators
The LED indicators on the interface controllers (see
and
) are useful for
diagnosing various problems:
•
FC port LEDs--Indicate FC activity (ACT) and link (LNK) status. If the link LED is not lit, it can
indicate a problem with an FC link. Make sure that the FC port configuration and cabling is
correct.
•
Ethernet LEDs--Indicate activity and link status. If one of these indicators is not lit or stays
continuously lit, it can indicate a problem with the network connection or cabling. Make sure
that the network connection is correct. The port must be connected to a 10/100Base-T Ethernet
network to function properly.
Basic troubleshooting
Simplify the installation by reducing it to the most basic configuration. Then, add elements one at
a time, making sure that the library operates correctly after each step.
Basic troubleshooting includes making sure that the setup and connections are correct:
•
The FC port connection
•
The interface controller configuration
•
Devices
•
Host configuration
•
HBA device driver information
•
Serial port configuration
Each of these topics is discussed in the following sections.
Troubleshooting
61