RAID Fans Test

If the fan suddenly stops running, then the temperature of the storage system hardware will soar, causing serious damage to the core components of the device. This is why, its good practice to keep track of the fan status using the raid Fans test. For each fan available on the storage system, this test reports how healthy the fan is and what is its current operational state.

Every aspect of storage performance – from the health of the hardware (batteries, LED sensors, power supply units etc.) to the health of core components of the storage device – e.g., disks, LUNs, RAID ports, controllers – is monitored in an agentless manner. Failures, error conditions, high load situations, load balancing irregularities and hot-spots are detected and alerted to administrators so they can initiate corrective actions.

Target of the test : An SMI-S compliant storage device

Agent deploying the test : A remote agent

Outputs of the test : One set of results for each fan on the storage system.

Configurable parameters for the test
Parameter Description

Test period

How often should the test be executed

Host

The IP address of the storage device.

Port

The port number at which the storage device listens to. By default, this is NULL.

User and Password

Specify the credentials of a user who has the right to execute API commands on the storage device and pull out metrics. The exact role that is to be assigned to such a user will differ from one device to another – for instance, when monitoring 3PAR, you will have to provide the credentials of a user who has been assigned the Monitor role, here. 

Confirm Password

Confirm the password by retyping it here.

SSL

Set this flag to Yes, if the storage device being monitored is SSL-enabled.

IsEmbedded

If this flag is set to True, it indicates that the SMI-S provider is embedded on the storage platform. On the other hand, if this flag is set to False, it indicates that the SMI-S provider has been implemented as a proxy.

SerialNumber

If the SMI-S provider has been implemented as a proxy, then such a provider can be configured to manage multiple storage devices. This is why, if the IsEmbedded flag is set to False, you will have to explicitly specify which storage system you want the eG agent to monitor. Since each storage system is uniquely identified by a SerialNumber, specify the same here. The format of this number and where you can find it will differ from one storage system to another. You are hence advised to contact the storage administrator to know what to enter against SerialNumber. For example, the serial number for an EMC CLARiiON device will be of the format, FCNMM094900059.

NameSpace

Specify the namespace that uniquely identifies the profiles specific to the provider in use.

Measurements made by the test
Measurement Description Measurement Unit Interpretation

Health state

Indicates how healthy this fan currently is.

 

The values that this measure can report and their corresponding numeric values are discussed in the table below:

Numeric Value Measure Value
0 OK
1 Unknown
2 Degraded/Warning
3 Minor failure
4 Major failure
5 Critical failure
6 Non-recoverable error

Note:

By default, this measure reports the Measure Values discussed above to indicate the state of a fan. The graph of this measure however, represents the state of the fans using the numeric equivalents only.

Operational status

Indicates the current operational state of this fan.

 

The values that this measure can report and their corresponding numeric values are discussed in the table below:

Numeric Value Measure Value
0 OK
1 In Service
2 Power Mode
3 Completed
4 Starting
5 Dormat
6 Other
7 Unknown
8 Stopping
9 Stressed
10 Stopped
11 Supporting Entity in Error
12 Degraded or Predicted Failure
13 Predictive Failure
14 Lost Communication
15 No Contact
16 Aborted
17 Error
18 Non-Recoverable Error

Note:

By default, this measure reports the Measure Values discussed above to indicate the operational state of a fan. In the graph of this measure however, operational states are represented using the numeric equivalents only.

Detailed operational state

Describes the current operational state of this fan.

 

This measure will be reported only if the API provides a detailed operational state.

Typically, the detailed state will describe why the fan is in a particular operational state. For instance, if the Operational status measure reports the value Stopping for a fan, then this measure will explain why the fan is being stopped.

The values that this measure can report and their corresponding numeric values are discussed in the table below:

Numeric Value Measure Value
0 Online
1 Success
2 Power Saving Mode
3 Write Protected
4 Write Disabled
5 Not Ready
6 Removed
7 Rebooting
8 Offline
9 Failure

Note:

By default, this measure reports the Measure Values discussed above to indicate the detailed operational state of a fan. In the graph of this measure however, detailed operational states are represented using the numeric equivalents only.