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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.
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. |
10 |
Memory Shared Common |
Host | Memory | Sum of shared machine memory by
all powered-on VM's. Subtract this 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 NIC instance 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 present in 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 |
42 |
Memory Balloon |
VM | Memory | Amount of guest physical memory
that is currently reclaimed from the virtual machine through
ballooning. This is the amount of guest physical memory that has been
allocated and pinned by the balloon driver. Note: You need to install the VMware tools on VM to use this feature. Installing VMware tools provides many more performance advantages, refer vmware website to read more about benefit of installing VMware tools. |
43 |
Memory Overhead |
VM | Memory | Amount of machine memory
allocated to a virtual machine beyond its reserved amount, i.e.,
machine memory used by the VMkernel to run the virtual machine. |
44 |
Memory Shared |
VM | Memory | Amount of memory shared with
other virtual machines |
45 |
Memory Swapped |
VM | Memory | Current amount of memory swapped
out to the virtual machine's swap file by the VMkernel. Swapped memory
stays on disk until the virtual machine needs it. This statistic refers
to VMkernel swapping and not to guest OS swapping. swapped = swapin + swapout |
46 |
Memory Consumed |
VM | Memory | Amount of guest physical memory
consumed by the virtual machine for guest memory. It includes shared
memory and memory that might be reserved, but not actually used. Use
this metric for charge-back purposes. |
47 |
Network Usage |
VM | Network |
Sum of data transmitted and
received across all virtual NIC instances connected to the virtual
machine |
48 |
Network Received Speed |
VM | Network | The rate at which data is
received across the virtual machine's vNIC (virtual network interface
controller). |
49 |
Network Transmitted Speed |
VM | Network | The rate at which data is
transmitted across the virtual machine's vNIC (virtual network
interface controller). |
50 |
Network Packets Received |
VM | Network | The number of packets received
by each vNIC (virtual network interface controller) on the virtual
machine. |
51 |
Network Packets Transmitted |
VM | Network | Number of packets transmitted by
each vNIC on the virtual machine. |
52 |
Disk Read Speed |
VM | Disk |
Rate at which data is read from
each virtual disk on the virtual machine |
53 |
Disk Write Speed |
VM | Disk | Rate at which data is written to
each virtual disk on the virtual machine. |
54 |
Disk Read Requests |
VM | Disk | Number of times data was read
from each virtual disk on the virtual machine |
55 |
Disk Write Requests |
VM | Disk | Number of times data was written
to each virtual disk on the virtual machine |
56 |
Disk Bus Resets |
VM | Disk | Number of SCSI-bus reset
commands issued |
57 |
Top VMs by CPU Usage |
VM | CPU |
List of VMs by top CPU usage |
58 |
Top VMs by CPU Ready |
VM | CPU |
List of VMs by top CPU Ready
usage |
59 |
Top VMs by Memory Usage |
VM | Memory |
List of VMs by top memory usage |
60 |
Top VMs by Swap Usage |
VM | Memory |
List of VMs by top swap usage |
61 |
Top VMs by Network Usage |
VM | Network |
List of VMs by top network usage |
62 |
Top VMs by Disk I/O Usage |
VM | Disk |
List of VMs by top Disk I/O usage |
63 |
Datastore Read Speed |
Host | Datastore |
Rate of reading data from the
datastore by the host |
64 |
Datastore Write Speed |
Host | Datastore | Rate of writing data to the datastore by the host |
65 |
Datastore Write Requests |
Host | Datastore | Average number of write commands issued per second by the host to the datastore during the collection interval. |
66 |
Datastore Read Requests |
Host | Datastore | Average number of read commands issued per second by the host to the datastore during the collection interval. |
67 |
Datastore Read Latency |
Host | Datastore | Average amount of time for a
read operation from the datastore |
68 |
Datastore Write Latency |
Host | Datastore | Average amount of time for a
write operation from the datastore |
69 |
Datastore Normalized Latency |
Host | Datastore | Normalized latency in microseconds on the datastore. Data for all virtual machines is combined. |
70 |
Datastore Aggregate number of IO
Operations |
Host | Datastore | Aggregate number of IO operations on the datastore. |
71 |
Datastore Read Speed | VM |
Datastore | Rate of reading data from the datastore by the VM |
72 |
Datastore Write Speed | VM | Datastore | Rate of writing data to the datastore by the VM |
73 |
Datastore Write Requests | VM | Datastore | Average number of write commands issued per second by the VM to the datastore during the collection interval. |
74 |
Datastore Read Requests | VM | Datastore | Average number of read commands issued per second by the VM to the datastore during the collection interval. |
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