Power Supply Statistics Test
The HP Procurve switch comes with two redundant power supplies. A sudden failure, erratic voltage fluctuations and abnormal power usage can cause the power supplies to crash, leading to critical damage of the target switch. To avoid such an unpleasant eventuality, administrators need to keep an eye on the power supplies of the switch. The Power Supply Statistics test helps administrators in this regard!
This test auto-discovers the power supplies of the target switch and reports the current status of each power supply. In addition, this test also reveals the count of failure events, the current voltage and temperature, and the maximum amount of power utilized from each power supply. Using these statistics, administrators can easily find out the power supply failures, abnormalities in power usage, if any and take remedial measures accordingly.
Target of the test : A HP Procurve Switch
Agent deploying the test : An external Agent
Outputs of the test : One set of results for every power supply in the HP Procurve switch that is being monitored.
Parameter | Description |
---|---|
Test Period |
How often should the test be executed. |
Host |
The IP address of the host for which this test is to be configured. |
Port |
The port at which the device listens. By default, this will be NULL. |
SNMPPort |
The port at which the monitored target exposes its SNMP MIB; The default value is 161. |
SNMPVersion |
By default, the eG agent supports SNMP version 1. Accordingly, the default selection in the SNMPversion list is v1. However, if a different SNMP framework is in use in your environment, say SNMP v2 or v3, then select the corresponding option from this list. |
SNMPCommunity |
The SNMP community name that the test uses to communicate with the switch. This parameter is specific to SNMP v1 and v2 only. Therefore, if the SNMPVersion chosen is v3, then this parameter will not appear. |
UserName |
This parameter appears only when v3 is selected as the SNMPVersion. SNMP version 3 (SNMPv3) is an extensible SNMP Framework which supplements the SNMPv2 Framework, by additionally supporting message security, access control, and remote SNMP configuration capabilities. To extract performance statistics from the MIB using the highly secure SNMP v3 protocol, the eG agent has to be configured with the required access privileges – in other words, the eG agent should connect to the MIB using the credentials of a user with access permissions to be MIB. Therefore, specify the name of such a user against this parameter. |
Context |
This parameter appears only when v3 is selected as the SNMPVersion. An SNMP context is a collection of management information accessible by an SNMP entity. An item of management information may exist in more than one context and an SNMP entity potentially has access to many contexts. A context is identified by the SNMPEngineID value of the entity hosting the management information (also called a contextEngineID) and a context name that identifies the specific context (also called a contextName). If the Username provided is associated with a context name, then the eG agent will be able to poll the MIB and collect metrics only if it is configured with the context name as well. In such cases therefore, specify the context name of the Username in the Context text box. By default, this parameter is set to none. |
AuthPass |
Specify the password that corresponds to the above-mentioned Username. This parameter once again appears only if the SNMPVersion selected is v3. |
Confirm Password |
Confirm the AuthPass by retyping it here. |
AuthType |
This parameter too appears only if v3 is selected as the SNMPversion. From the AuthType list box, choose the authentication algorithm using which SNMP v3 converts the specified username and password into a 32-bit format to ensure security of SNMP transactions. You can choose between the following options:
|
EncryptFlag |
This flag appears only when v3 is selected as the SNMPVersion. By default, the eG agent does not encrypt SNMP requests. Accordingly, the this flag is set to No by default. To ensure that SNMP requests sent by the eG agent are encrypted, select the Yes option. |
EncryptType |
If the EncryptFlag is set to Yes, then you will have to mention the encryption type by selecting an option from the EncryptType list. SNMP v3 supports the following encryption types:
|
EncryptPassword |
Specify the encryption password here. |
Confirm Password |
Confirm the encryption password by retyping it here. |
Timeout |
Specify the duration (in seconds) within which the SNMP query executed by this test should time out in this text box. The default is 10 seconds. |
Data Over TCP |
By default, in an IT environment, all data transmission occurs over UDP. Some environments however, may be specifically configured to offload a fraction of the data traffic – for instance, certain types of data traffic or traffic pertaining to specific components – to other protocols like TCP, so as to prevent UDP overloads. In such environments, you can instruct the eG agent to conduct the SNMP data traffic related to the monitored target over TCP (and not UDP). For this, set this flag to Yes. By default, this flag is set to No. |
Engine ID |
This parameter appears only when v3 is selected as the SNMPVersion. Sometimes, the test may not report metrics when AES192 or AES256 is chosen as the Encryption type. To ensure that the test report metrics consistently, administrators need to set this flag to Yes. By default, this parameter is set to No. |
Measurement | Description | Measurement Unit | Interpretation | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Power supply state |
Indicates the current status of this power supply. |
|
The values reported by this measure and its numeric equivalents are mentioned in the table below:
Note: By default, this measure reports the Measure Values listed in the table above to indicate the current status of each power supply. The graph of this measure however, represents the status of the power supply using the numeric equivalents only - 1 to 6. |
||||||||||||||
Power supply failure count |
Indicates the number of times this power supply failed during the last measurement period. |
Number |
A zero value is desired for this measure. |
||||||||||||||
Power supply temperature |
Indicates the current temperature of this power supply. |
Celsius |
|
||||||||||||||
Power supply voltage |
Indicates the current voltage of this power supply. |
Volts |
The value of this measure should be in the admissible range. If the threshold is violated due to erratic fluctuations, administrators should further initiate investigations. |
||||||||||||||
Power supply current wattage |
Indicates the amount of power that this power supply currently supplies. |
Watts |
|
||||||||||||||
Power supply maximum wattage |
Indicates the maximum amount of power that this power supply can supply. |
Watts |
The value of this measure should be in the admissible range. |