Rob Sobers from VaronisÂ provides a great summary on the differences between SMB and CIFS
This day and age, you should always use the acronym SMB.
I know what youâ€™re thinking â€“ â€œbut if theyâ€™re essentially the same thing, why should I always use SMB?â€
1.) The CIFS implementation of SMB is rarely used these days.Â Under the covers, most modern storage systems no longer use CIFS, they use SMB 2 or SMB 3.Â In the Windows world, SMB 2 has been the standard as of Windows Vista (2006) and SMB 3 is part of Windows 8 and Windows Server 2012.
2.) CIFS has a negative connotation amongst pedants.Â SMB 2 and SMB 3 are massive upgrades over the CIFS dialect, and storage architects who are near and dear to file sharing protocols donâ€™t appreciate the misnomer.Â Itâ€™s kind of like calling an executive assistant a secretary.
Source:Â The Difference between CIFS and SMB