Introduction - The Emergence Of A New Architecture For Long-Term Data Retention
Storage Technology Fundamentals
- Disk Areal Density = Linear Density x Tracks/mm
- Disk Bandwidth = Linear Density x Rotational Speed
- Disk bandwidth is improving at the CGR of disk linear density = √ Areal Density CGR of 20% = 9.6%.
- 38% lower license costs:
- Fewer core, lower database maintenance, lower infrastructure software costs.
- Higher storage costs:
- More than 50%, lower maintenance, simplified management.
- 17% Fewer Servers:
- Fewer cores, fewer network connections, lower maintenance.
- 74% lower environmental costs:
- Power, space, cooling, etc.
- 35% lower operational costs.
Tape Never Died
- Tape Areal Density = Linear Density x Track/mm
- Tape Bandwidth is Linear Density x Tape Speed x Tracks Read, therefore:
- Tape bandwidth CGR ≅ Areal Density CGR = 30% (Assuming tape speed remains constant)
Time To First Byte Vs. Time To Last Byte
Liner Tape File System - LTFS
- Quickly and easily migrated to tape,
- Quickly found and recalled from tape,
- Easily managed on tape.
Making Flape Even More Usable
- Copy Management,
- Compression / Deduplication and
- REST API’s
- Long-term Retention,
- Scale-out NAS,
- Cloud, and
- Tiered Storage.