If you encounter in the Sql Server Agent Log "SQLServer Error: 15404, Could not obtain information about Windows NT group/user 'ISTMRKSQLHOST\Administrator', error code 0x534. [SQLSTATE 42000] (ConnIsLoginSysAdmin)" this is related with Sql Server Agent job security.
Open Sql Server Management Studio, go to Object Explorer select Jobs under SQL Server Agent. Find your Maintenance Plan and right click on it, select Properties. On the General Page change Owner to 'sa'. Then execute the maintenance plan again.
thnk you, it is all right now,
ReplyDeleteThank you it work for me.
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