This resolution is only applicable if you are experiencing the events described in the Symptoms section. There are several alerts that can be generated by these health checks, you should check the event description and the link provided with the event before proceeding. Most alerts are discussed here: http://technet.microsoft.com/en-us/library/ff686788.aspx
In order to update the SharePoint databases, you must manually run the PSconfig utility. To run the utility:
1. Open an Administrative command prompt.
2. Change directory to C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\14\BIN
3. Run PSConfig.exe -cmd upgrade -inplace b2b -force -cmd applicationcontent -install -cmd installfeatures
If you are a Small Business customer, find additional troubleshooting and learning resources at the Support for Small Business site.
Source :
http://support.microsoft.com/kb/2580174
Informations de référence sur la ligne de commande PSConfig (SharePoint Server 2010)
http://technet.microsoft.com/fr-fr/library/cc263093(v=office.14).aspx