Dell EMC ME4084 Owner's Manual page 23

LED Description
8 Network Port Link Active Status
9 Network Port Link Speed
10 Expansion Port Status
1
When in FC mode, the SFPs must be qualified 8Gb or 16Gb fiber optic option. A 16 Gb/s SFP can run at 16 Gb/s, 8 Gb/s, 4 Gb/s, or
auto-negotiate its link speed. An 8 Gb/s SFP can run at 8 Gb/s, 4 Gb/s, or auto-negotiate its link speed.
2
When in 10 GbE iSCSI mode, the SFPs must be a qualified 10 GbE iSCSI optic option.
3
When powering up and booting, iSCSI LEDs are on/blinking momentarily, then they switch to the mode of operation.
4
Cache Status LED supports power on behavior and operational (cache status) behavior. See also
behavior.
5
When port is down, both LEDs are off.
Figure 32. LEDs: ME4 Series 10Gbase-T controller module
Table 7. LEDs: ME4 Series 10Gbase-T controller module
LED Description
1
Host 10Gbase-T iSCSI
Link Status/ Link Activity
2
Host 10Gbase-T iSCSI
Link Speed
3 OK
4 Fault
5
5
Definition
Off — No link detected.
Green — The port is connected and the link is up.
Blinking green — The link has I/O activity.
Off — The link is not established, or the link is down.
Green — The link is up at 10 G negotiated speed.
Amber — The link is up at 1 G negotiated speed.
Green — The controller is operating normally.
Blinking green — System is booting.
Off — The controller module is not OK, or is powered off.
Off — The controller is operating normally.
Amber — A fault has been detected or a service action is required.
Definition
cache, so a green cache status LED does not, by itself, indicate that any
user data is at risk or that any action is necessary.
Off—In a working controller, cache is clean (contains no unwritten data).
This is an occasional condition that occurs while the system is booting.
Blinking green—A CompactFlash flush or cache self-refresh is in progress,
indicating cache activity.
Off—The Ethernet link is not established, or the link is down.
Green—The Ethernet link is up (applies to all negotiated link speeds).
Off—Link is up at 10/100 base-T negotiated speeds.
Amber—Link is up and negotiated at 1000 base-T.
Off—The port is empty or the link is down.
Green—The port is connected and the link is up.
Table 9. Cache Status LED – power on
Storage system hardware 23