Time for an old one… NO_SMS_ON_DRIVE.SMS. It is still valid and should be used on disks that shouldn’t be used by Configuration Manager, it goes for all versions. It is an empty text file mentioned above, which tells Configuration Manager not to use that disk. I still see this not being used at many customers and in the forums, therefor time for this little reminder.
A great example would be when you use a remote SQL Server, a cluster perhaps, the SMS Executive files will be installed on the largest volume and not on the local C: drive bur perhaps a clustered disk which will cause errors when the cluster fails over. Another example would be a file server used as a DP as well, the largest disk will be used if the selected one is filled up.
It is also documented here: http://technet.microsoft.com/en-us/library/bb632890.aspx
So don’t forget to create the NO_SMS_ON_DRIVE.SMS file.