Techwatch: Storage sub-WG

Table of Contents:

• Storage Areas
• Structure for each of the areas:
• Working document
• Meetings
• Resources

Storage Areas

The following are the areas within the Storage sub-WG:

• Hard Disks (HDDs)
• Solid-State Disks (SDDs)
• Storage Class Memory
• Storage infrastructure
• Tape
• Others (optical, holographic, etc)

Structure for each of the areas:

• Technology specifications, status and outlook
  • capacity, density, sequential and random I/O performance
  • reliability and required/possible redundancy levels
  • lifetime
  • relevance to HEP use cases
  • comparisons within same area (e.g. HAMR vs MAMR)
• Market status and outlook
  • % market, units/PB shipped, annual growth rate
  • pricing evolution, (discount rates)
  • vendors and their status and market share, sales, net revenues
  • impact on HEP
• Comparisons
  • e.g. disk vs SSD vs tape vs… [this section needs then to be consolidated across all areas]
  • comparison (in particular wrt cost) to Cloud based Storage
• Documentation
  • relevant documentation links: references, specs, news and rumour pages, etc

Working document

• Google doc skeleton
• By mid January 2019, contributors have agreed to fill in the skeleton doc.
• A summary is to be presented at next WLCG workshop and HEPiX (both in March)

Meetings

• Agenda page for meetings, including notes

Resources

• Bernd Panzer’s Computing Technologies and Markets reports: https://twiki.cern.ch/twiki/bin/view/Main/TechMarketPresentations