8. vCloud Management and Monitoring Examples : 8.1 vCenter Operations Manager : 8.1.9 Management Cluster
   
8.1.9 Management Cluster
The Management cluster has several different components that must be monitored for continued operation of the cloud. A sample Management Dashboard is shown in Figure 72. The example monitors the following cloud management components:
*SQL Server (vCenter/vCloud Director databases).
*vCenter Server.
*vCloud Director cell.
*vCenter Operations Manager.
*Chargeback.
*vCloud Networking and Security Manager.
Figure 72. Management Cluster Dashboard
 
The first widget is used to monitor the SQL database for database size and transactions metrics. The Hyperic agent is used to collect these metrics and display them in a scoreboard widget.
The following metrics are used for this widget:
*Metric used: Microsoft SQL Server 2008 (database SQL01-Server MSSQLSERVER).
*Databases: VCD and vCenter (the SQL databases).
Metric
Unit
Green Range
Yellow Range
Orange Range
Red Range
vCenter SQL Active Transactions
#
100
100–200
200–300
300
vCenter SQL Database File Size
MB
60000-70000
70000–80000
80000–90000
900000
vCenter SQL Transactions per Minute
#
100
100–200
200–300
300
VCD SQL Active Transactions
#
100
100–200
200–300
300
VCD SQL Database File Size
MB
10000
10000–20000
20000–30000
30000
VCD SQL Transactions per Minute
#
100
100–200
200–300
300
 
Note: These threshold/ranges are only examples. These values should be based on the cluster design threshold values and the customer requirements.
The completed widget appears as follows:
Figure 73. Completed Widget
 
The following widget monitors the SQL Server free space on each logical operating system drive. This example uses the following drive letters:
*C:\ Operating system driv.
*D:\ SQL database files.
*E:\ SQL log files.
*F:\ SQL backup.
This example monitors free space available on each of these drives and configures alerts based on thresholds. The metric used is part for the resource kind Virtual Machine and data is collected using VMware Tools. This example uses the Scoreboard widget as follows.
Metric
Unit
Green Range
Yellow Range
Orange Range
Red Range
Guest File System C:\ Guest File System Free
GB
15
10–15
8–10
8
Guest File System D:\ Guest File System Free
GB
15
10–15
8–10
8
Guest File System E:\ Guest File System Free
GB
15
10–15
8–10
8
Guest File System F:\ Guest File System Free
GB
15
10–15
8–10
8
 
Note: These threshold/ranges are only examples. These values should be based on the cluster design threshold values and the customer requirements.
The completed widget appears as follows:
Figure 74. Completed Widget xxxxx
 
The same metric can be used to create a widget that monitors the vCenter and vCloud Director cells for free space. Monitor the transfer folder free space of the vCloud Director cells. Using a Scoreboard widget you can create a widget as shown in the following illustrations. Note that the transfer folder mount point is monitored. The default mount point is /opt/vmware/cloud-director/data/transfer in the Linux operating system (vCloud Director cell).
 
You can use a Metric Graph widget to monitor for historical CPU demand on the following infrastructure objects:
*SQL Server
*vCloud Networking and Security Manager
*vCloud Director cells
*vCenter Server
The following metrics are used to create the widget.
Resource
Metric
SQL Server
CPU Usage | Demand (%)
vCloud Networking and Security Manager
CPU Usage | Demand (%)
vCenter Server
CPU Usage | Demand (%)
vCloud Director Cell
CPU Usage | Demand (%)
 
The completed widget displays as follows: