How to Discover EMC Unity devices?

[Subhamoy Maitr1]

Hi,

I have gone through the documentation and other posts regarding the SMI-S and CIM discovery. What I need to understand is what set up is needed at the EMC side and what set up is needed at the ServiceNow side. Can anyone list this out?

[Prasanna44]

These are the requirements for storage discovery via SMI-S and CIM from EMC Side

1. A CIM server using SMI-S 1.5 or later.

2. NAS and SAN systems from major vendors such as EMC, Hitatchi, HP, and NetApp. SAN storage devices must use FC.

3. FC switches from major vendors such as Brocade and Cisco.

4. The CIM credentials must be available for SMI-S configuration and should have administrative rights. The CIM credentials can be different than the credentials for the system hosting the CIM server.

Note: Because the SMI-S Provider caches storage device information, the Discovery query to the provider does not affect storage device performance.

[Akshatha Ballal]

Set up at EMC side:

1. Check if CIM/SMI-S is running natively on the Unity device. The storage team managing the device would have an idea on this. If it's a yes and it would be in most cases, you have no problem discovering it OOB from servicenow.
2. Unisphere management interface is generally used to manage Unity device using GUI. A local user with the 'Operator' role in the unisphere for the unity box you're trying to discover. Make a note of its credentials which should be provided to servicenow.

Set up at Servicenow side:

1. A new CIM credentials in servicenow. Discovery-credentials-new- CIM credentials. Give the same username and password that the storage team has used for the local user with operator role.
2. Firewall access from port 427 (slp- portprobe), 5989 and 5988 (wbem-portprobe) from the MID server to the Unity Box IP

Go ahead and try to discover Unity.

Avoid using an AD user as that didn't work in my case, try to get a local user on the device. Also check if the CIM credential is validated for that IP of unity. 

If you take care of these, I believe you're good to go.

[Chaitanya86]

Hi,

Can i used EMC Unisphere login credentials to Discover Storages?

[Subhamoy Maitr1]

Hi, We are facing issues while opening port 427. Is it mandatory to open this port? What is the purpose of this port? I have read the docs but unable to understand it.