Backup vs Archiving
A while back I posted an open question on twitter regarding backing up verses archiving, and it seems that everyone is in agreement regarding the core difference for media professionals. What I have yet to understand is why these same media professionals who understand the concept of long term archival long to use backup practices to achieve this. Either deploying binders full of optical media, shelves full of USB driven external storage, or a huge rack of SAN.
Simply trying to adding to a SAN or a RAID strategy for accommodating an every growing amount of data is NOT the path to archival bliss. Studies by IT experts show that the costs for doing this are deceptive – individual disk drives are cheap but not the infrastructure to support them. Adding rack space, power, and cooling requirements is just impractical. Also according to the Clipper Group Inc., the costs for a Terabyte stored long term on SATA disk versus LTO data tape is about 23, to as much as 290 times more! The issue with trying to grow your storage you will always grow faster than you anticipate. (more…)

