OpManager monitors all the critical parameters of your VMware servers and allows you to generate reports on the collected value. It provides over 70 different reports out-of-the-box, helping you get an insight into the performance trend and top hosts and VMs. All these reports are grouped under host reports & Virtual Machines reports. Further, they are subdivided based on system resources such as CPU, Memory, Network & Disk. The complete list of reports supported by OpManager is given in Table 3 for reference.
Host Reports:
View the reports for resources such as CPU, Memory, Network & Disk. Moreover, OpManager offers views to compare the
performance of each VMs in a host. Say for example, when you see a gradual rise in Host CPU utilization trend, it would be useful to know which VM got affected due to the rise in physical resource. This information helps you quickly identify and fix the problem. With OpManager, you can select 'per VM' view (refer the screenshot given below) to compare the performance of VMs in that host.
VM Reports:
VM Reports offer reports for each individual VMs. Refer the screenshot given below.
Accessing Reports:
You can generate reports from the snapshot page or directly access the Reports tab. For ease of use, all the reports of the VMs and hosts are grouped under Virtual Devices category under the Reports tab. Click on the report name to generate the report.
Example: The screenshot below shows the memory used report for a host. You can select the required performance report from the Select Report dropdown menu. If you wish to view the report for another host, select the required host from For Host dropdown menu. To view the amount of memory used by each VM, select the per VM check box.
OpManager User Guide
VMware Monitoring
The screenshot below shows the legend summary and table view. Legend summary provides the minimum, maximum and average values of memory used by the host. Table view provides the same values collected during the recent polls.
The reports can be exported to PDF or XLS format. You can also schedule reports and email them. Table 3: Out-of-the-box reports that are offered by OpManager
S.No. Report Virtual
Device Type
System
Resource Description
1 CPU Utilization per core Host CPU Percentage (%) of actively used CPU of the Host per core 2 CPU Used Host CPU Amount of time (in Milliseconds) CPU used per core 3 CPU Idle Host CPU Amount of time (in Milliseconds) CPU is kept idle / unused.
4 CPU Overall Utilization Host CPU Average CPU utilization of all cores, gives a quick overview of overall performance of the CPU in the host.
5 Memory Usage Host Memory Percentage (%) of memory used of total configured memory. 6 Memory Used Host Memory Average size (in KBytes) of memory used in overall
7 Memory Active Host Memory Amount of memory (in KBytes) that is actively used
8 Memory Overhead Host Memory Sum of overhead metrics for all powered-on virtual machines, and the overhead of running services on the host.
9 Memory Shared Host Memory Sum of shared virtual memory of all powered-on VM's. This shared memory can be larger than the amount of machine memory available, if memory is over committed. This statistic reflects how effective transparent page sharing and memory overcommitment are saving machine memory.
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10 Memory Shared Common Host Memory Sum of shared machine memory by all powered-on VM's. Subtractthis metric from the shared metric to calculate how much machine memory is saved due to sharing:
shared - sharedcommon = machine memory (host physical memory) savings (KB)
11 Memory Swap In Host Memory Sum of swapin values for all powered-on virtual machines on the host 12 Memory Swap Out Host Memory Sum of swapout metrics from all powered-on virtual machines on the
host
13 Memory Swap Used Host Memory Sum of memory swapped of all powered on VM's
14 Network Usage Host Network Sum of data transmitted and received (KBps) across all physical NIC instances connected to the Host
15 Network Received Speed Host Network The rate (KBps) at which data is received across each physical NIC instance on the host.
16 Network Transmitted
Speed Host Network The rate (KBps) at which data is transmitted across each physical NICinstance on the host. VM: The rate at which data is transmitted across the VM's vNIC 17 Network Packets Received Host Network Total number of packets received on all all physical NIC present on
the host. 18 Network Packets
Transmitted Host Network Total number of packets transmitted across all physical NIC presentin the host. VM:Number of packets transmitted by each vNIC on the VM
19 Disk I/O Usage Host Disk Aggregated disk I/O rate. The rates for all virtual machines running on the host.
20 Disk Read Speed Host Disk Rate (KBps) at which data is read for each LUN on the Host. Read Speed = (Number of blocksRead per second x blockSize) 21 Disk Write Speed Host Disk Rate (KBps) at which data is written to each LUN on the Host 22 Disk Read Requests Host Disk Number of times data was read from each LUN on the host 23 Disk Write Requests Host Disk Number of times data was written to each LUN on the host 24 Disk Bus Resets Host Disk Number of SCSI-bus reset commands issued
25 Disk Command Abort Host Disk Number of SCSI commands aborted
26 Disk Read Latency Host Disk Average amount of time (Milliseconds) to complete read from physical device
27 Disk Write Latency Host Disk Average amount of time (Milliseconds) to complete write the physical device
28 Disk Space Usage Host Disk Disk Space utilization for each Datastore 29 Top Hosts by CPU Usage Host CPU List of Hosts by top CPU usage
30 Top Hosts by Memory
Usage Host Memory List of Hosts by top memory usage 31 Top Hosts by Swap Usage Host Memory List of Hosts by top swap usage 32 Top Hosts by Network
Usage
Host Network List of Hosts by top network usage 33 Top Hosts by Disk I/O
Usage Host Disk List of Hosts by top Disk I/O usage 34 Top Disk Space
Consumers Host Disk List of Hosts by top disk space consumption 35 CPU Usage MHz per core VM CPU Amount of actively used virtual CPU per core 36 CPU Used VM CPU Total amount of time (Milliseconds) CPU used 37 CPU Ready VM CPU Total CPU time spent in ready state
38 CPU Wait VM CPU Total CPU time spent in wait state
39 CPU Overall Utilization VM CPU Average percentage of actively used virtual CPU on all cores, gives a overview of CPU performance of the VM.
40 Memory Usage VM Memory Memory usage (%) of total configured memory for VM 41 Active Memory VM Memory Amount of guest / VM memory actively used