Are proxy and phantom still need???

[Goasutlor]

i'm not sure about VCS Configuration about Proxy and Phantom , it still must use in VCS config or not. If it still must use , what is the benefit of those resource .

Thank in advance

[Gaurav_S]

Hello,

Its not a must but purely depends on the configuration you choose...

For proxy agent.... will provide you most common examples ...

1. Lets say your server have 2 NIC cards for public use (Application needs NIC/IP)  however you have more than 2 service groups to be ran on cluster. In such scenario it is never recommended that you configure same NIC resource under different service groups. SO in this situation what you do is, create a separate service group with only NIC cards in it (you can configure it as MultiNIC resources for high availability), now this service group with NIC card will run in parallel on all the nodes & will be online on all the nodes since NIC on all servers are different. NOw with configuration, all your application service groups instead of NIC cards can have proxy resource which will point to NIC card resource under this NIC service group.

For Phantom:

2. In above example, in NIC service group, only NIC resource will be there which is basically a persistent resource which means it can't be taken offline (physical device), to monitor such service groups, you need to add a dummy phantom resource which can help in declaring group state.

For more details on config, refer bundled agents guide below:

https://sort.symantec.com/public/documents/sfha/5.1sp1/solaris/productguides/pdf/vcs_bundled_agents_51sp1_sol.pdf

G

[Wally_Heim · Accepted solution]

Hi Goastlor and Gaurav,

The NIC/Proxy example given by Gaurav, is common for all non-Windows implementations of the product.  However, for Windows the NIC resource has been optimized for the Windows operating system so that there is no real benefit from using the NIC/Proxy configuration described on Windows implementations.

Thanks,

Wally