Monitoring UPS Devices and Environmental Sensors Using ehealth

Transcription

1 Focus Topic August 2005 Monitoring UPS s and Environmental s Using ehealth Uninterruptible Power Supplies (UPS) and Environmental s are widely deployed in IT environments. A UPS provides reliable power to critical devices. Environmental sensors detect environmental problems that could cause critical devices to fail. Many UPS devices and sensors are SNMP enabled with a MIB and agent that the ehealth software can poll and certify. The ehealth Suite now offers enhanced support for UPS and Environmental s. A generic set of UPS and variables are supported in addition to variables for specific brands of this type of equipment. Many devices, such as high end routers, contain environmental sensors for temperature, humidity, power, or fan. Large devices may have multiple sensors of any given type, for example, multiple temperature monitors or multiple fans. There are also devices that are dedicated to environmental monitoring. These support many sensors of multiple types, everything from door sensors, to light, power, and water. Some devices include a built in UPS; others have external UPS devices with built in SNMP agents and a network card that allows them to be managed remotely. A UPS typically monitors input power, the battery, and output power at minimum. Because a UPS can have multiple inputs and multiple outputs, we have multiple elements that correspond to those parts. For UPS devices a standard MIB is defined in RFC1628, and many UPS vendors have private MIBs. For environmental sensors there is no standard MIB, but there are many private MIBs, most of which allow us to poll for the value of a sensor. Most also include the ability to send traps when a sensor or the UPS detects a problem. For example we have certified traps for Cisco's ENVMON MIB and the APC MIB. You can monitor these devices using the ehealth system to ensure that your service is performing as expected. When performance does not meet expectations, ehealth reports can help you pinpoint the cause of the problem. For a complete list of certified UPS and Environmental vendors that have been certified, refer to the Certification page of the web site. ehealth s Solution for Uninterruptible Power Supplies (UPS) and Environmental s This topic describes how to actively monitor UPS devices and environmental sensors using ehealth reports. It contains the following sections: Element Overview describes the types of elements that ehealth creates for UPS devices and environmental sensors. These elements represent the devices that you can monitor. License and Software Requirements lists the release requirements, third party support, and ehealth licensing information. Reports describes how to run At-a-Glance, Trend, and TopN reports for UPS and environmental sensor devices. Reference Information provides lists of supported Trend and Top N variables and At-a-Glance charts, and describes how to get a list of the variable data mappings for UPS devices and environmental sensors.

2 Monitoring UPS s and Environmental s Using ehealth License and Software Requirements Support for the UPS devices described in this topic is available with ehealth release Patch 6 and later, and release 5.7 Patch 2 and later. To discover your UPS devices and manage them using ehealth, you use the Router discover mode. When ehealth discovers your devices, it associates the UPS element with whatever device its connected to. If you run a report on the device with which the UPS is associated, you can drill down to the UPS element. If you run a report on a UPS, you can follow a link to a report on the associated device. The UPS element uses the standard licensing model; each UPS element consumes one element license. Element Overview This section describes the types of UPS devices and environmental sensors covered by this object model, then describes the elements created for each device type. Types of s Covered by this Model The ehealth UPS and Environmental element model covers the following types of devices: Simple UPS Simple Environmental with Embedded Environmental s Complex UPS with Extra s Simple UPS. This standalone, SNMPmanageable UPS device has a battery, one or more input power lines, one or more output power lines, zero, one or more bypass power lines, one or more network interface cards, and an SNMP agent. Figure 1 shows the elements in a simple UPS. The model depicted in Figure 1 covers the simplest UPS that has a single battery, a single input line, a single output line, and optionally a single bypass line. It would normally have a single network interface, but this model does support a UPS with multiple interfaces and/or a CPU. Router CPU UPS Bypass Line Bypass Line Figure 1. Simple UPS 2

3 Monitoring UPS s and Environmental s Using ehealth Simple Environmental. These are standalone, SNMP-manageable and networkaddressable environmental sensor devices. The elements used to model this device are shown in Figure 2. The Rittal CMC 7000 series of environmental sensors are an example of these devices. Router, System, or RAS Router CPU Other element Other element Figure 2. Simple Environmental The model in Figure 2 covers the case of a simple dedicated environmental monitoring device. Such a device generally supports MIB2, a single interface, and one or more environmental sensors. Such a device could have a CPU, or it could have multiple interfaces, but these are rare. An example of an environmental sensor is the RITTAL CMC-TC in certification request with Embedded Environmental s. These are dedicated environmental monitoring devices, or devices with embedded environmental sensors. The elements used to model either of these devices are shown in Figure 3. A Cisco router that supports the Cisco environment monitoring MIB is an example of such a device. Note that any kind of device could include environmental monitoring sensors, a router, switch, system, or RAS. Figure 3. with Embedded Environmental s The model in Figure 3 covers a device, such as a router, switch, system, or RAS that also includes environmental sensors within its chassis. These environmental sensors might measure the temperature at different places, or might monitor a pair of redundant power supplies. In both cases, the model is a device with sensor elements associated with it. Examples include the NEC IX2010 with the NEC-Pico MIB, or a Cisco Router with the CISCO-ENVMON MIB. Note that we have partially supported the CISCO- ENVMON MIB in then past by storing temperature, fan, and power status in router CPU elements. This only supports a single sensor of a given type, but the device can have multiple sensors and we currently cannot represent those. To migrate to the new model, we will continue to support the existing temperature, fan, and power status variables in routers and router CPU elements. However, we will create new sensor elements for each distinct sensor in the device. In some future release, we can remove the support for these variables from the router and router CPU elements. 3

4 Monitoring UPS s and Environmental s Using ehealth Complex UPS with Extra s. These are devices with embedded sensors and UPS devices. The elements used to model these devices are shown in Figure 4. Any kind of device can include a UPS and environmental sensor. The model in Figure 4 represents the complete picture, a device, like a router or switch, with an embedded UPS and multiple sensors. If a UPS has multiple batteries there are two ways this can be modeled: as multiple UPS elements or as a single UPS with multiple battery sensor objects. Which is appropriate depends on how the UPS works. If every output line gets its power from one battery, then each battery should be considered as a separate UPS. But if the output lines get they power from all of the batteries, then it should be modeled as one UPS, with multiple child battery sensor objects. If the complex UPS is embedded in a device with some other function, a router, switch, system, or RAS, the model in Figure 4 will support that case. If the device also has environmental sensors unrelated to the UPS, they are modeled by unparented elements with a association to the device element. Router, System, or RAS CPU UPS Bypass Line Bypass Line Figure 4. Complex UPS with Extra s 4

5 Monitoring UPS s and Environmental s Using ehealth Element Types Two new element types are included in this model: UPS and. These elements are part of the router technology type, and are generally associated with a device element such as a Router, System, or RAS. association allows for drill-down from the toplevel device element to the UPS. The ehealth system discovers UPS as the parent element. The software can discover as child elements:,, and Bypass Line elements, or Power, Temperature, Humidity, Fan, and Contact elements. UPS. A UPS element models the battery in a UPS, and is the parent of the input, output, and bypass power lines that are part of the UPS. All power line elements are modeled as power line sensor elements. The name of a UPS is normally sysname-ups. If a system has multiple UPS elements, then a description or name field is added as in sysname-upsdescr-ups. An example of a upsdescr is the upsidentname MIB variable from the RFC1628 UPS.MIB.. There are many types of s. Each is a separate element. The statistics supported depend on the sensor type. Power. This element is used to monitor power lines, including following types of lines: UPS Input Power Line. UPS Output Power Line. UPS Bypass Power line. Power used to monitor power lines or power supplies for devices that don t have UPS. Temperature. Measures air temperature. Humidity. Measures moisture in the air. Fan. Detects if the server s fan is working. Contact s. Contact types include: Door Open Alarms when door or window is opened. Door Closed Alarms when door is closed. Lock Alarms when door is unlocked. Generic Contact This element type should be used only as a last resort. Whenever possible, add a new sensor element type. The name of a sensor is normally sysnamesensorname-env, for example: NYUPS32-InPwr01-ENV. Reports ehealth offers Top N, Trend and At-a-Glance reports for UPS and Environmental elements. Use these reports to gain insight into the health of your UPS devices and the performance of your Environmental s. To generate these reports, select the variables that represent the data that you want to monitor for each device. Refer to the list of Trend and TopN variables on page 7 and the list of At-a-Glance charts on page 7 to understand the variables that you can choose for each element. At-a-Glance reports contain a set of pre-defined charts that provide insight into the performance of the elements. Review the list of At-a-Glance charts on page 7 to understand which charts appear for each element. You can use the At-a-Glance reports to compare variables and look for combinations of problems that could indicate problem sources. From At-a-Glance charts, you can drill down to Trend reports and view performance data in greater detail. The ehealth software supports drill downs between the At-a-Glance reports associated with the UPS and Environmental elements. This allows you to navigate to a higher or lower view for a resource, and enable you to review the performance of related elements. Trend reports allow you to view more granular data on a particular performance variable or group of variables for an element. You can also view trends over time from both At-a-Glance and Trend reports. Top N reports provide information on groups of elements. These reports use the same variables as Trend reports, but in addition, they offer information such as peak values. You use this report type when you want to compare variables for multiple elements in a group. For example, you might want to understand which UPS devices have the most Battery Low Time, or show the highest Battery Temperature. When you run Top N reports, you select a pre-defined group of elements and the variables that you want ehealth to compare for each element in that group. ehealth supports numerous drill downs between the At-a-Glance reports associated with the UPS and Environmental elements at different levels in the hierarchies. This allows you to navigate to a higher or lower view for the resource that can help you to troubleshoot problems by reviewing the performance of related elements. 5

6 Sample At-a-Glance Report When you run At-a-Glance reports for UPS devices and you choose a Technology, be sure to select one of the device types that UPS devices can be embedded in or connected to, including: Router/Switch LAN/WAN LAN Generic LAN This At-a-Glance report displays several charts for the bass:9509 UPS element. The charts show the percentage of time without power, battery charge remaining, and other conditions of the UPS element in the previous 24 hours. The report output also supplies links in the left pane to view charts for additional variables associated with this element. Monitoring UPS s and Environmental s Using ehealth Sample Trend Report Review Table 1 on page 7 to identify the variables associated with UPS elements. When you run a Trend report for one of these elements, you select one or more variables. This Trend report shows battery voltage and battery charge remaining for a two hour period during which there was a power interruption. It can help you determine how well the UPS device performed during the power loss. The report shows that the UPS device provided power for about 40 minutes while maintaining steady voltage, then recharged normally after power was restored. Sample Top N Report Review Table 1 on page 7 to identify the variables associated with UPS elements. When you run a Top N report, you can select a group of elements for which you want to view common values, and then select up to six variables for comparison. The sample Top N report displays the percentage of battery charge remaining for the UPS elements in the selected group. 6

7 Monitoring UPS s and Environmental s Using ehealth Reference Information This section lists the following: Supported Trend and Top N variables for the Control Switch and Active Directory elements and their subordinate elements. Supported At-a-Glance charts for the UPS element and its subordinate elements Supported Trend and Top N Variables Table 1. Trend and Top N Variables for the UPS Element Element Trend Variables Element Trend Variables UPS Battery Charge Remaining Battery Battery Current Time when Battery Normal Time when Battery Low Time when Battery Depleted Tim e on Battery Time Without Output Power Percent Time when Battery Normal Percent Time when Battery Low Percent Time when Battery Depleted Percent Time on Battery Percent Time without Output Power Seconds Until Battery Depleted Minutes Until Battery Depleted Battery Temperature Celsius Battery Temperature Fahrenheit Times Input Out of Tolerance Current Power Frequency Normal TIme Warning Time Alarming Time Percent Normal Time Percent Warning Time Percent Alarming Time Value Temperature (C) Temperature (F) Fan RPM At-a-Glance Charts Table 2. List of Charts in Each At-a-Glance Report Element Charts Element Charts UPS Time Without Output Power Battery Charge Remain Battery Temperature Battery Condition Load Availability Latency Current Power Frequency Availability Latency Current Power Frequency Load Availability Latency Bypass Line Current Power Availability Latency 7

8 Monitoring UPS s and Environmental s Using ehealth Variable Data Mappings For a complete description of the UPS and Environmental elements, data mappings, and trendable variables, go to the Certified s Web page on the Website. As a registered user, you can obtain important information about UPS devices and associated Environmental s, such as: Available MIB Translation Files (MTFs) General Information Database Column Mappings Polled MIB Variables Trend Variables Figure 5 shows a Certified s page for a UPS element. Figure 5. Certified s Page for a UPS Element In addition, you can use the ehealth Element Variable report (available from the ehealth Web interface Organization Page) to obtain detailed information about the Trend variables and polled MIB OIDs for each element. Figure 6 shows a sample report with the Trend variables for the UPS element. It shows how ehealth combines and evaluates the MIB variables to obtain the data for each Trend variable for the element. Figure 6. Element Variable Report for a UPS Element Copyright 2006 Concord Communications, Inc. ehealth, the Concord Logo, Live Health, Live Status, SystemEDGE, AdvantEDGE and/or other Concord marks or products referenced herein are either registered trademarks or trademarks of Concord Communications, Inc. Other trademarks are the property of their respective owners. 8