We're a site with over 100 servers and we're considering a switch from traditional file-level backups (using Netbackup) to block-level (using Acronis). Of course, with this, we're also considering a switch from the traditional tape based system (using a tape-library) to performing backups to disk.
I would like to know if anyone has done a similar switch (specially between these 2 products) and if so, what are your experiences?
As a final note, I want to mention that what grabbed my attention from Acronis is its ability to perform ONLINE image-backups as well as INCREMENTAL image-backups. I'm a little bit skeptic about performing ONLINE image-backups as I have always performed them on COLD systems in the past. I haven't properly test the product but will be pretty soon.