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Hardware Nodes (or just Nodes) are physical servers where Virtuozzo Containers 4.0 is installed for hosting Containers. The Parallels Infrastructure Manager functionality enables you to register and manage a number of Hardware Nodes via Infrastructure Manager, group them under logical units and consolidate their IP addresses into an IP addresses pool.
The Nodes collectively registered in Parallels Infrastructure Manager are easier to manage because all of them can be available from any single machine where you run Infrastructure Manager. For information on registering Hardware Nodes refer to the Registering Hardware Nodes subsection.
When you find out that the number of registered Nodes (and, consequently, of Containers run on them) has grown, it can be convenient to divide them into a number of logical units representing certain classes - the Nodes based on a certain architecture, run Containers of a particular type or purposes, etc. To manage your Nodes this way, look at the Organising Virtuozzo Infrastructure subsection. The IP addresses of the Virtuozzo Group Hardware Nodes united into an IP addresses pool present a more convenient distribution because, when assigning IP addresses to Containers, there will be no IP conflicts and no manually entering IP addresses - they will be selected from the pool. This is described in the Managing IP Pool subsection.
To distribute workload, you can migrate Containers between the Nodes registered in Infrastructure Manager.
On the Hardware Nodes screen you can review the Hardware Nodes list currently registered via Infrastructure Manager and see the Nodes details shown as the following table:
Column Name |
Description |
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Hostname |
The hostname assigned to the Node. |
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IP Address |
The IP address of the Node used to connect to Infrastructure Management. |
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VT |
The virtualization solution used on the server. Currently, Infrastructure Manager allows you to manage servers running the Virtuozzo Containers software only; it will support other virtualization technologies in the future. |
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Platform |
The operating system, Linux or Windows, installed on the Node. |
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Operating System |
The name and version of the operating system installed on the Hardware Node. |
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Architecture |
The architecture of the microprocessor installed on the Node. |
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CPU |
The percentage of the current CPU load of the Node. |
The information on the resources consumption by Hardware Nodes is retrieved every 10 seconds and Infrastructure Manager displays the latest values. |
Disk |
The percentage of the current disk space usage of the Node. |
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Memory |
The percentage of the current memory consumption of the Node. |
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Alert |
The level of the Node resources usage signalled by a corresponding alert. |
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Status |
The current status of the Node. |
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Note: If this screen is loaded in the Logical View, the Nodes displayed in this table are those which have been added to the Logical View, otherwise the Nodes list is empty. To add a Hardware Node to the Logical View, click Add on the Infrastructure Manager toolbar, select Hardware Node from the menu and choose the Node(s) on the screen it opens.
To manage any of the Nodes registered in Parallels Infrastructure Manager, click its name in the leftmost column of the table. To display a certain Node from a long list of Nodes, press the Show Search link on top of the table, enter the name of the Node and press the Search link; to have the list of the Nodes back, click Reset Results.
To stop manage a Hardware Node via Infrastructure Manager, select its checkbox and click Unregister; to add a new Node to the list of the Nodes managed via Infrastructure Manager, click the Add button on the Infrastructure Manager toolbar. Selecting one or more Hardware Nodes in the table and clicking the Move button opens the screen where you can sort the selected Node(s) out by distributing them over Parallels Infrastructure Manager folders.
