> I think if you turn on software compression this only applies > to the data "in-flight", i.e. it is compressed by the client but > decompressed by the server, regardless of the type of storage unit. ^^^^^^^^^^^^^^^^^^^^^^^^^^
What makes you say this? > link. Even on a WAN many WAN routers use compression to improve > throughput. I never thought of this. Cool. Do you have an example that I can study? > There are now VTLs that compress the data going to disk; they always have > a bit of a gamble as to how well they can mimic the way the real tape > compresses data; I'm told they just use very conservative > estimates, to make sure the disk image will fit on the tape. ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ This makes no sense to me. No tape software ever, AFAIK, guarantees that a medium is a certain length or holds a certain amount of data. That's just not the way tape has ever worked. _______________________________________________ Veritas-bu maillist - Veritas-bu@mailman.eng.auburn.edu http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu