Hopefully someone out there is using some sort of deduplication in their SQL Server backup strategy. I am having a lot of trouble finding articles on deduplicating SQL Server backups on the web. All the vendors say they do it but are not providing much information on strategy and what works best to ensure their system can eliminate the redundant block. If anyone has a success story, I would greatly appreciate it. Even a tip for what to stay away from would be helpful. We have over 150TB of SQL Server databases online and this technology sounds like a promising way to significantly reduce backup storage costs and windows.
Some questions I have are:
Is block level or bit level deduping best?
Is inline or offline best for SQL Backups?
We use SQL Lightspeed and while the backups are much faster, will we have issues or should we go back to native backups in SQL Server?
Thanks for your help....