how to speed up discovery?

[vimal11592]

Hi,

Just now I have started working on discovery so While running the discovery I have noticed the following two points:

• Before running the discovery I have stored all the credential in SNOW and ran it.But I have noticed it will try all username and pass and get the valid one and discover the machine.So it takes much time.Is there any way we can speed up this process by doing some kind of tagging.
• While doing discovery it discovers all the cameras and it will still try the credential.But there is no credential for this.It will just update logs with errors and we need to confirm the local resource what is it and exclude it.But may be in future that device is down and IP is getting used for the server.It can be a problem.

Can someone please advise on these points and guide me.I am looking into discovery pattern not sure is it going help or not?

Thanks,

Vimal

[tony_barratt]

Hi Vimal,

The initial discovery will try all available credentials as you suggest.

Can you invoke a 2nd discovery and check if the discovery is faster and better?

There is an explanation below which explains why a 2nd discovery should be faster.

Credential affinity for Discovery and Orchestration

..

It is not necessary to associate credentials with a device within Discovery.

When Discovery or Orchestration first attempts to access a device, they try all available credentials until they find the correct ones. After identifying the credentials for a device, Discovery and Orchestration create an affinity between the credentials and the device using the Credential Affinity [dscy_credentials_affinity] table. All subsequent discoveries or Orchestration activities attempt to match the credentials in this table with a device for which an affinity exists. If credentials for a device change, Discovery and Orchestration try all available credentials again until they create a new affinity.

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[vimal11592]

Hi Anthony,

Thanks for the reply!!

This is really helpful.I was not aware of this.I have just one doubt, before running discovery what if I create entries manually in dscy_credentials_affinity table.Will that help to speed up the discovery.

Thanks,

Vimal

[tony_barratt]

Hi Vimal,

Interesting thought but it is probably better to carry out an initial disco and check results and the entries in the affinity table.

Generally the affinity table is populated as you would want - sometimes more than one userid and password can succeed and the better combo loses out - then manual tweaking would be useful.

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[vimal11592]

Thanks !!

I will try both ways.Let's see how it goes.

is there any link you can provide for my second point or any information that can help.

Thanks,

Vimal