I configured a single-node cluster simulator the other day, but now I want to convert it to an HA pair cluster by joining another node, could someone tell me how?
I have searched some documents, but could not find related doc.
And if it is supported with physical nodes?
Hi JianGong Dai,
HA is not supported in simulators
>And if it is supported with physical nodes?
HA is supported on physical nodes
please see the documentation here -- http://support.netapp.com/knowledge/docs/simulate_ontap/Simulate_ONTAP_8.2_Installation_and_Setup_Guide.pdf
check page 6
Thank you for your response.
I know simulator doesn't support HA features, but my point is that how can I convert a single-node cluster to be part of an HA pair cluster with physical node?
Is there any documentation covering this?
I searched the KB, but could not find something related.
Hi JianGong Dai,
>how can I convert a single-node cluster to be part of an HA pair cluster with physical node?
>Is there any documentation covering this?
>I searched the KB, but could not find something related.
i am curious to know the usecase here.
>can I convert a single-node cluster to be part of an HA pair cluster with physical node?
This is not supported either.(actually not possible to do )
In a HA pair need to see the disk-shelf of there partners
For example. say i have a physical HA pairs A and B.Each of these nodes when part of HA can view partner disks (they are cabled such that)
In an event of failure of controller A the partner B takeover all the disks of partner A
Since in a simulator (simulated ontap) we don't have an ability to achieve this . i say this is not supported
so you cannot pair a vsim with physical node to create an HA
Many thanks in advance for your comments.
I am sorry I didn't make myself understood correctly, but I certainly know we cannot pair a vsim with a physical node to create an HA.
Now let me make it clearly: assume that I got a FAS2240A, and I use one controller to create a single-node cluster, and just leave the other controller not configured(but with 8.2 cDOT image installed). Now I want to convert the single-node cluster to pair the unused controller to create an HA pair cluster. what is the specific conversion processes?
Hi JianGong Dai,
I guess you incorrectly posted it to SIMULATOR page. But thats ok.
This question is more on the physical ontap front.
Aah i read the subject line -- which clearly states your point.
well i will try and answer this one.(though i may be incorrect -- request you to check and post a similar query on ontap community page)
also i would try and find an answer myself because this looks like an interesting scenario too
If you buy two physical nodes i would ideally configure both (will not try to have a single node)
Since you have tried to create a single node cluster only . I would ideally bring up the second node with same ontap version
I will have to connect the disk shelf appropriately for HA (as mentioned in my above post)
I would need an interconnect cable running between these clusters nodes
i will make the second node up and join the first node (making it a 2 node cluster)
after this on for HA i will have to enable storage failover on each nodes
storage failover modify -node nodeA -enabled true
storage failover modify -node nodeB -enabled true.
storage failover show (would show me both nodes connected)
I got what I want to know, thank you so much for your input.
Actually it was a simulator(8.2 cDOT) environment, and I use one vsim to create a single-node cluster, and I want to convert this single-node cluster to a two node cluster by adding another vsim, I just didn't know how to do this.
Now I got it, thanks again.