SP sensor 是通过threshhold-based 的机制来判断是否有component有问题

System sensors     输出系统中sensor的信息

System sensors get sensor_name 可以得到更加详细的某个sensor的信息

一个sensor的reading值由下面的判断机制定义：

• LCR     Lower Ciritcal
• LNC     Lower Noncritical
• UNC   Upper Noncritical
• UCR    Upper Critical

有些sensors没有这四个值，对于这样的sensors，missing的数值显示为na

对于输出结果中的 System_Fw_status的解读，输出内容的形式是 0xAABB，根据这个AA和BB的组合来判断sensor的condition

AA 可以是下面的值:

01 System firmware error

02 System firmware hang

04 System firmware progress

BB 可以是下面的值:

00 System software has properly shut down

01 Memory initialization in progress

02 NVMEM initialization in progress (when NVMEM is present)

04 Restoring memory controller hub (MCH) values (when NVMEM is present)

05 User has entered Setup

13 Booting the operating system or LOADER

1F BIOS is starting up

20 LOADER is running

21 LOADER is programming the primary BIOS firmware. You must not power down the system.

22 LOADER is programming the alternate BIOS firmware. You must not power down the system.

2F Data ONTAP is running

60 SP has powered off the system

61 SP has powered on the system

62 SP has reset the system

63 SP watchdog power cycle

64 SP watchdog cold reset

举个例子：System_FW_Status sensor status 0x042F 含义是 "system firmware progress (04),

Data ONTAP is running (2F)."

System_watachdog 的解读

0x0080 The state of this sensor has not changed

0x0081 Timer interrupt

0x0180 Timer expired

0x0280 Hard reset

0x0480 Power down

0x0880 Power cycle

举例，System_Watchdog sensor status 0x0880 含义是 watchdog timeout occurs and

causes a system power cycle.

PSU1_Input_Type and PSU2_Input_Type 解读

DC电源的，这个数值没有意义，

0x01xx 220V PSU type

0x02xx 110V PSU type

NetApp的存储系统大部分是SP来监控的，但也有一些model型号是通过BMC来监控的，在BMC下也有相对应的命令，叫做sensor show，输出内容一样，如下图举例所示。

BMC 是 sensor show