Service pack Installation at SharePoint 2010

Here ar ethe steps which would help SharePoint admins to install SharePoint 2010 patches: 1) Save the 14 hive backups at all servers 2) Get ready the full backup of all the SharePoint databases. 3) Disconnect DBs through commands 4) Install the patch at Central admin server --> one by one at all the servers --> Do not start the Configuration wizard at any server unless and untill it is installed at all the SharePoint servers. 5) Start the configuration wizard at central admin and then rest of servers. 6) Attach content db through command(try to do not use central admin for this purpose). It would take more time according to the db size. At this stage the db will be upgrade to same level 7) Check the upgraded service pack through Central admin for all servers. --> Servers in farm

After Successful retraction of solution from SharePoint farm, still showing that status as deployed

Most of the times you can see that after successful retraction of a solution through central admin the status is still showing as deployed. This happens because the solution might be deployed at central admin as well. So follow the below steps: Steps to work around this issue: Retract the solution from all content URLs Retract the solution from the Central Administration web application explicitly .