Curtis, >> Data Domain has good market share, but very few DD customers use VTL.
Really? That surprises me a little (i.e., the marginalised VTL usage) and isn't necessarily representative of the TSM customers I've spoken to or worked with using DDRs, many of whom still use the VTL functionality. I can't comment on whether this is so much the case with shops that use other backup software though (e.g., I know NBU has its own OST interface). In any case, whether through VTL or NFS/CIFS the principle is the same and of course you're right, pre-appliance compression or even encryption can be catastrophic to data de-dupe ratios. Without knowing any more, it sounds like you may have to make a compromise somewhere without changing your current config Nancy, either in terms of backup data storage footprint or RPO. Cheers, __________________ David McClelland London, UK On 26 Aug 2010, at 19:10, Nobody <wcplis...@gmail.com> wrote: > Data Domain has good market share, but very few DD customers use > VTL.
