Exchange, MSSQL, File Services, SharePoint and AD...Microsoft applications play major roles in most IT environments these days. It's not accidental that the major storage vendors are making great effort to easily integrate with these applications. VSS Framework seems to be the prevailing wind.
For those who still question the maturity of the technology I would remind you that its underpinnings are loosely based on journal file system concepts which I was first exposed to in the open systems world in the early 1990's through the Digital UNIX ADVFS file system. (Remember those guys?) This type of file system abstracts the address level of the file system from the data level, creating pointers from the address level to common data sets at the data level. First used for pointer-based snapshots, this concept has since been leveraged for deduplication storing only unique data blocks at the data level and using the address level as a reference.
Quick introduction; I am writing this blog "Storage Navigator" to hopefully distill practical solution architectures from all the technology "BUZZ" so common in this industry. I have been involved in deploying storage solutions and managing infrastructures since the early 1990's, with companies such as Invincible Technology(ITC), Berkshire Computer, Glasshouse Technology and now Daymark Solutions.