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CNCF Storage TAG

Meetings

The Storage Technical Advisory Group meets on the 2nd and 4th Wednesday of every month at 8AM PT (USA Pacific):

Join from PC, Mac, Linux, iOS or Android: https://zoom.us/j/2920471159?pwd=em1JbE44MktjZE4vbnJtUUFQcGZwdz09

Or iPhone one-tap (US Toll): +16465588656,158580155# or +14086380968,158580155#

Or Telephone: Dial: +1 646 558 8656 (US Toll) or +1 408 638 0968 (US Toll) Meeting ID: 158 580 155 International numbers available: https://zoom.us/zoomconference?m=0gvI03dCdRnx6WENPzdNhioORGmhVwYo

Mailing list and minutes

Mailing list: https://lists.cncf.io/g/cncf-tag-storage

(note: the old WG mailing list is here: https://groups.google.com/forum/#!forum/cncf-wg-storage)

Meeting minutes are recorded here: https://bit.ly/cncf-storage-sig-minutes

CNCF Storage TAG Charter

The charter is available here: https://github.com/cncf/tag-storage/blob/master/storage-charter.md

CNCF Storage Landscape Whitepaper

The whitepaper documents the storage landscape by clarifying the terminology used in the storage space including:

• The attributes of a storage system such that an end-user can understand the appropriate capabilities that might be required by an application or architectural pattern.
• The layers in a storage solution (or service) with a focus on terminology and how they impact the defined attributes covering the container, orchestrator, transport, topology, virtual/physical, data protection, data services and the non-volatile layers.
• The data access interfaces in terms of volume (including block, file system and shared file system) and application API (including object, KV and database) as high level groupings.
• Separate sections with further detail on Block Storage, File systems, Object Storage and Key Value Stores.
• The management interfaces needed to orchestrate the storage layers to facilitate composability, dynamic provisioning and self service management.

The whitepaper is available here: https://bit.ly/cncf-storage-whitepaperV2

PDF copy is available in the repo here: https://github.com/cncf/tag-storage/blob/master/CNCF%20Storage%20Whitepaper%20V2.pdf

Cloud Native Disaster Recovery Whitepaper

This document covers how disaster recovery is implemented in cloud native environments and covers:

• Definition of Cloud Native Disaster Recovery (CNDR) including failure domains, HA & DR
• CAP theorem: Consistency, Availability, Network Partitioning
• Anatomy of Distributed Stateful workloads: Replicas, Shards, API Layer, Storage Layer
• Consensus Protocols: Paxos, Raft, 2PC, 3PC
• CNDR Reference Architectures

The document is available here: https://bit.ly/cncf-cloud-native-DR

PDF copy is availaber in the repo here: https://github.com/cncf/tag-storage/blob/master/Cloud%20Native%20Disaster%20Recovery.pdf

Data on Kubernetes Whitepaper - Database Patterns

This document describes patterns of running data on Kubernetes. This is a collaboration between TAG Storage and Data on Kubernetes Community (DoKC). In this version of the whitepaper, we are focusing on database workloads. It covers the following:

• Attributes of a storage system and how they affect running data in Kubernetes
• Running data inside vs outside of Kubernetes
• Common Kubernetes patterns and features used when running data on Kubernetes
• Observability
• Security
• Day 2 operations

The document is available here.

Current CNCF Storage Projects

Graduated Projects

• etcd
• Harbor
• Rook
• TiKV
• Vitess

Incubating Projects

• CubeFS
• Dragonfly
• Longhorn

Sandbox Projects

• Carina
• Curve
• Hwameistor
• K8up
• OpenEBS
• Pravega
• Piraeus
• Vineyard
• Xline(onboarding)

Operating Model

This TAG follows the standard operating guidelines provided by the TOC unless otherwise stated here.

Current TOC Liaison: Nikhita Raghunath, Matt Farina

Co-Chairs: Alex Chircop, Xing Yang, Raffaele Spazzoli

Tech Leads: Luis Pabon, Sheng Yang, Nick Connolly

Other named roles: None at present; will be identified and staffed as needed.