NetApp DiskShelf14mk2 FC, Руководство по аппаратуре и обслуживанию

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Chapter 2: Monitoring the Disk Shelf 15
Monitoring the 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 16 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 system console.
This section also describes the different types of messages that appear on the
system console in response to a command monitoring the ESH2 or 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... ESH2 ESH4
Input X X
Output X X
Fault X X
1-Gb operation - X
2-Gb operation X X
4-Gb operation - X
ELP (future functionality) - X