| 29 | | As you will see later in this session, once the slice is initialized, you will be able to use a web-based terminal to connect to your nodes just by clicking on a node in the topology diagram. You will also be able to copy files to your nodes and will have the ability to run commands on all the nodes (or a subset of nodes) in your topology at the same time. Any time you try to work with a slice in the GENI Desktop, the GENI Desktop will automatically initialize the slice if it has not already been initialized. |
| 30 | | |
| 31 | | [[Image(wiki:GEMINI/Tutorial/Images:gd_simple2.png,50%)]] |
| 32 | | [[Image(wiki:GEMINI/Tutorial/Images:gd_simple3.png,50%)]] |
| 33 | | |
| 34 | | |
| 35 | | |
| 36 | | == Instrument your Slice == |
| | 28 | The initializing process loads some basic software onto the experimental nodes that allows GENI Desktop a basic level of interaction with them. Some basic functionality between GENI Desktop and the experimental nodes becomes available during this time including file copying and the ability to run remote commands. Every slice accessed by GENI Desktop is initialized. |
| 39 | | Intrumentize is the process of adding monitoring software to the nodes in your slice. The GENI Desktop does this automatically so that it can show traffic graphs and other measurement information about the slice. The statistics are collected by passively probing the nodes. Passive measurements may include, monitoring the traffic flow on links/nodes, system statistics like CPU and Memory monitoring, monitoring of system processes, IP tables and routes. All data collected is from the activity being performed by you on your nodes. For this to happen, we install and setup several well-known data collection and monitoring tools. This operation can take a considerable amount of time depending on which Disk Image is loaded on your nodes. If using a GENIDesktop enabled Disk Image, this phase should complete within 10 minutes. If you use your own Disk Image on the nodes in your slice (assuming it is supported by GENIDesktop), this phase may take as much as 30 minutes. (Notes: If you did not select a Disk Image when using JACKS to create your slice, then you are using one of the GENIDesktop Enabled Disk Images). |
| | 31 | The instrumentization process adds monitoring software to the nodes in your slice. The GENI Desktop does this automatically so that it can show traffic graphs and other measurement information about the slice. The statistics are collected by passively probing the nodes. Passive measurements include monitoring the traffic flow on links/nodes, system statistics like CPU and RAM usage, monitoring of system processes, IP tables and routes. All data collected is representative of the activity being performed by you on your nodes. |
| | 32 | |
| | 33 | Several well-known data collection and monitoring tools are installed during this process and installation can take a considerable amount of time depending on which disk image is loaded on your nodes. If using a GENI Desktop enabled Disk Image, this phase should complete within 10 minutes. If you use your own Disk Image on the nodes in your slice (assuming it is supported by GENI Desktop), this phase may take as much as 30 minutes. (Notes: If you did not select a Disk Image when using JACKS to create your slice, then you are using one of the GENI Desktop enabled Disk Images). |
| 42 | | Once instrumentized, you can use all the capabilities of the GENIDesktop. This includes viewing network and system graphs, tabular data collected from your nodes, and re-configuring the data you want collected and displayed. You can also archive your data to your Irods account created at the !GENI Portal. Once instrumentized, there will be additional data collection routines and daemons running on your nodes. The additional system and memory load should be minimal though and should not affect the performance of your nodes. You should also be able to use features you had when you initialized your slice. All slices are automatically instrumentized when using the GENIDesktop. |
| 43 | | |
| 44 | | [[Image(wiki:GEMINI/Tutorial/Images:gd_simple4.png,50%)]] |
| | 36 | Once instrumentized, you can use all the capabilities of the GENI Desktop. This includes viewing network and system graphs, tabular data collected from your nodes, and re-configuring the data you want collected and displayed. You can also archive your data to your Irods account created at the !GENI Portal. Once instrumentized, there will be additional data collection routines and daemons running on your nodes. The additional system and memory load should be minimal though and should not affect the performance of your nodes. You should also be able to use features you had when you initialized your slice. All slices are automatically instrumentized when using the GENIDesktop. |
