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Clustered mailbox server error while installing exchange 2007 in CCR

Hi,
I m installing exchange 2007 active mailbox server in CCR but getting attached error.
i have already installed and configured cluster and added both nodes and file witness successfully. everything was green during cluster validation exception storage options because my disks was online when i ran the validatiaon.

Please help me ASAP, i m stuck in middle.  
Exchange-Install-Error-2.JPG
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Commented:
I dont install exchange on secondary node yet and my CMS is alos looking offline.
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Commented:
Check if you cluster group is online.
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BRONZE EXPERT

Commented:

Author

Commented:
i checked and both nodes was online at the time of installation and cluster group was also coming while checking from CMD.

Author

Commented:
after few restart of the server and cluster server the error is changed.
The clustered mailbox server's group 'myCMS' was not found, and should already exist.

Author

Commented:
my domain controllers running on 2003.
i have resolved it my own.
it was actually a permission issue. Exchange cluster computer account should be a member of local admins on your exchange 2007 and the same account must have delegation for read and write on your active directory domain.

Author

Commented:
thanks

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