Thanks, actually I've quite a lot to do with storage and also solid state drives, I just haven't thought of the impact here while being so blown away by the fact that our full backup with about 500GB transfers takes about 3 1/2 hours, whereas the incremental with only 30GB transfers takes about 1 1/2 hours. But yeah, random I/O is THE problem today; hopefully SSDs will find their way into enterprise storage systems (for acceptable costs) in the next years.
I actually think solid state drives will push virtualization a second time like x64 did.
It's funny by the way how everyone talks about CBT and incremental backups being that muuuuch faster. I mean, in theorey that's true, for sure. But in pracice everyone still needs to be aware of incrementals resulting in random workloads which in nature are much slower than sequential ones
Anyway, all clear now, thanks for getting me back to reality