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correct some format issues

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immarvin
2015-09-18 04:37:38 -04:00
committed by GONG Jie
parent 08d39cca31
commit 6de2502b35
1 changed files with 4 additions and 4 deletions
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8
docs/source/guides/admin-guides/basic_concepts/network_planning/network_cfg/xcat_net_planning.rst
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@@ -10,10 +10,10 @@ Service Nodes
`````````````
For very large clusters, xCAT has the ability to distribute the management operations to service nodes. This allows the management node to delegate all management responsibilities for a set of compute or storage nodes to a service node so that the management node doesn't get overloaded. Although xCAT automates a lot of the aspects of deploying and configuring the services, it still adds complexity to your cluster. So the question is: at what size cluster do you need to start using service nodes?? The exact answer depends on a lot of factors (mgmt node size, network speed, node type, OS, frequency of node deployment, etc.), but here are some general guidelines for how many nodes a single mgmt node (or single service node) can handle:
Linux:
* **[Linux]:**
Stateful or Stateless: 500 nodes
Statelite: 250 nodes
AIX:
* **[AIX]:**
150 nodes
These numbers can be higher (approximately double) if you are willing to "stage" the more intensive operations, like node deployment.
@@ -58,6 +58,6 @@ When you have NFS-based diskless (statelite) nodes, there is sometimes the motiv
If you still have reasons to pursue HA service nodes:
* For AIX, see [TODO XCAT_HASN_with_GPFS]
* For linux, a couple prototype clusters have been set up in which the NFS service on the SNs is provided by GPFS CNFS (Clustered NFS). A howto is being written to describe the setup as an example. Stay tuned.
* For **[AIX]** , see [TODO XCAT_HASN_with_GPFS]
* For **[Linux]** , a couple prototype clusters have been set up in which the NFS service on the SNs is provided by GPFS CNFS (Clustered NFS). A howto is being written to describe the setup as an example. Stay tuned.