Hi,please any one can help me regarding my problem..I have to take a backup of a coloboration portal from the production machine and restore it on the QA machine, On QA i have one site collection(http://sitename) and i have to replace the backup as a sub site for the site collection (eg:http://sitename/subsite) The backup for colloboration portal size is 15GBThe main site is Coloboration portal and got its own content database (i,e: wss_content_xxx),the sub site got its own content database (i,e: wss_content_subsite_xxx),The sub site is coloboration portal on prodction server.what I did till now :I did full backup and restored :I got a problem, i got the site collection but not sub site ,The sub site is coloboration portal.I did import and export: so i did import and export, export is sucessful but when importing i received an error Fatal error: Length cannot be less than zeroparamet name: Lengthden the import is stoped. so please any one help me how to solve the issue.Thanks in advance.

Hi Satish marru, please check the SQL server Diskspace.becuase your file size is 15gb ,if the server Dont have the space to Restore the Content it will give you the Error some times.please try other methods to restore.The below are different methods to backup and restore the Sharepoint Sevrer 2007. You can back up and restore data for Office SharePoint Server 2007 by using any of the following mechanisms: Back up a farm by using built-in tools (Office SharePoint Server 2007)Restore a farm by using built-in tools (Office SharePoint Server 2007) Back up a farm by using SQL Server tools (Office SharePoint Server 2007)Restore a farm by using SQL Server tools (Office SharePoint Server 2007) Back up and restore a farm by using DPM (Office SharePoint Server 2007)Protecting Office SharePoint Server 2007 by using System Center Data Protection Manager (white paper)refer to this http://technet.microsoft.com/en-us/library/cc262412.aspx if you are going to build a new SharePoint environment, You can just move only your Content Databasesafter you install and configure the new SharePoint, you can do this stepyou can check the post of ahmed-ammar for step by step http://ahmed-ammar.blogspot.com/2009/05/how-to-move-sharepoint-content-database.htmlThanks ,Nagaraju gurrala:)