Performance Evaluation of Automated Tape Library Systems
- Ilias Iliadis
- Linus Jordan
- et al.
- 2021
- MASCOTS 2021
Magnetic tape data storage systems are experiencing a renaissance driven by the widespread utilization by hyperscale cloud companies. The increasing adoption of tape is driven by the convergence of two trends: 1) the continued exponential growth in data which averages about a 40% compound annual growth rate (CAGR) and 2) the recent slowdown in the areal density scaling of hard disk drives (HDDs). The net result: we are creating data at a much faster rate than we can afford to store it, at least if we want to store it all on spinning disk.
Fortunately, a large fraction of the world’s data, approximately 80%, is cold data, i.e. data that is infrequently accessed and hence can tolerate higher access latencies. For such applications, tape has multiple advantages: