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Urgent help with SMSQL

[ Edited ]

Hi, I'm not be able to make a backup in a SQL 2008 R2 cluster. When I run the backup, it raises this error:

An error occurred while collecting backup information. Details: Item allready aggregated. Dictionary key: 'I' Key aggregated: 'I'.

Thank you very much.

Re: Urgent help with SMSQL

Problem was caused by MPIO lack: host detec duplicate LUNs. Installing MPIO and all right.