Network Appliance DiskShelf 14mk2 FC, Hardware And Service Manual

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16 Monitoring the LRC, ESH, ESH2, or ESH4 modules
Monitoring the LRC, ESH, ESH2, or ESH4 modules
About monitoring
the modules All the modules have LEDs that indicate whether it is functioning normally or if
there are any problems with the hardware. The following table identifies the type
of LED that is available for each type of module.
Note
The Fault LED is amber. The input and output LEDs are green. See “ LED status
on the modules ” on page 18 for an illustrated explanation of the LED functions.
On ESH4, the appropriate loop speed LED lights up to indicate the speed of
operation.
You can also identify any hardware failure associated with the module from the
error messages displayed on your storage controller console.
This section also describes the different types of messages that appear on the
storage controller console in response to a command monitoring the
ESH/ESH2/ESH4.
Location of the
module LEDs The modules are in the middle of the back of the disk shelf. Because module A is
inverted, the location of the module A LEDs is the inverse of what is shown in
some of the illustrations.
LED indicating... LRC ESH ESH2 ESH4
Input X X X X
Output X X X X
Fault X X X X
1-Gb operation - - - X
2-Gb operation - X X X
4-Gb operation - - - X
ELP (future
functionality) - - - X