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