VCEM - MAC/WWN address ranges

[chuckk281]

Keith has a customer VCEM question:

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Got the following from a customer.  Any suggestions or whitepapers/best practices I can point them to?

We are standing up 2 VCEM environments (within local environment where VCEM already exists).  We need to understand the a bit deeper on the possibilities and workarounds to make sure duplicate VCEM address do not exists.   

Thanks!

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Reply from Chad:

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The User Guide talks about setting up exclusion ranges. Here are the ranges for MACs and WWNs split up in 8192 chunks. They would need to determine which VCEM server will use which range and exclude the other server’s range. Note the current profiles being used if any.

VCEM Defined MAC Range                          MAC Start MAC End

VCEM Defined 00-21-5A-9B-00-00            00-21-5A-9C-FF-FF

VCEM Defined WWN Range                        WWN Start WWN End

VCEM Defined 50:01:43:80:02:A3:00:00 50:01:43:80:02:A4:FF:FF

MAC ranges with 8192 MACs per range

1              00215A9B0000 - 00215A9B1FFF

2              00215A9B2000 - 00215A9B3FFF

3              00215A9B4000 - 00215A9B5FFF

4              00215A9B6000 - 00215A9B7FFF

5              00215A9B8000 - 00215A9B9FFF

6              00215A9BA000 - 00215A9BBFFF

7              00215A9BC000 - 00215A9BDFFF

8              00215A9BE000 - 00215A9BFFFF

9              00215A9C0000 - 00215A9C1FFF

10           00215A9C2000 - 00215A9C3FFF

11           00215A9C4000 - 00215A9C5FFF

12           00215A9C6000 - 00215A9C7FFF

13           00215A9C8000 - 00215A9C9FFF

14           00215A9CA000 - 00215A9CBFFF

15           00215A9CC000 - 00215A9CDFFF

16           00215A9CE000 - 00215A9CFFFF

VCEM Defined WWN Range

1              5001438002A30000 - 5001438002A31FFF

2              5001438002A32000 - 5001438002A33FFF

3              5001438002A34000 - 5001438002A35FFF

4              5001438002A36000 - 5001438002A37FFF

5              5001438002A38000 - 5001438002A39FFF

6              5001438002A3A000 - 5001438002A3BFFF

7              5001438002A3C000 - 5001438002A3DFFF

8              5001438002A3E000 - 5001438002A3FFFF

9              5001438002A40000 - 5001438002A41FFF

10           5001438002A42000 - 5001438002A43FFF

11           5001438002A44000 - 5001438002A45FFF

12           5001438002A46000 - 5001438002A47FFF

13           5001438002A48000 - 5001438002A49FFF

14           5001438002A4A000 - 5001438002A4BFFF

15           5001438002A4C000 - 5001438002A4DFFF

16           5001438002A4E000 - 5001438002A4FFFF

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Other comments or suggestions?

[chuckk281]

Some more info from Hiro:

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From VCEM v7.0, you can configure Sub-Ranges so that you can use multiple VCEM in the same environment.

http://h18000.www1.hp.com/products/quickspecs/12860_div/12860_div.html

• VCEM Sub-Ranges: Installing multiple instances of VCEM, such as a multi-CMS environment or a HP IO Federated CMS

Hope this helps.

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