Slides from 'Lean UX (User Experience) Workshop' held 29 Jan. 2014 at Movida Japan, based on the #leanuxbook published in Japanese - http://sprmar.io/leanuxbookja.
Slides from 'Lean UX (User Experience) Workshop' held 29 Jan. 2014 at Movida Japan, based on the #leanuxbook published in Japanese - http://sprmar.io/leanuxbookja.
WalB: Real-time and Incremental Backup System for Block Devicesuchan_nos
WalB is an open-source backup system that consists of block devices, called WalB devices, and userland utilities, called WalB tools. A WalB device records write-I/Os. WalB tools extracts them to create restorable snapshots in an incremental manner.
Compared with dm-snap and dm-thin, WalB is designed to achieve small I/O latency overhead and short backup time. We conducted an experiment to take an incremental backup of a volume under random write workload. The result confirms those advantages of WalB.
Cybozu cloud platform, which has 500TB volumes and processes 25TB write-I/Os per day, is required to achieve (1) stable workload performance without I/O spikes which may affect application user experience and (2) short backup interval specified in our service level objective. WalB satisfies the requirements, while dm-snap is not enough to and dm-thin is not expected to.
Dockerをちゃんと使おうと考えていたらKubernetesに出会いました。ERPのシステム開発でkubernetesを使おうとして苦労した、あるいは現在進行形で苦労していることを、そもそもKubernetesが解決しようとしている課題やそのアーキテクチャそのものにも言及しながらお話します。Dockerをベースにシステム設計を行おうとしている方にノウハウ(主に苦労話)を共有します。
July 24th, 2016 July Tech Festa 2016
Workshop at the Regional Scrum Gathering Tokyo 2017 about Management 3.0.
In this workshop we experienced how to energize people with a simple card game called “Moving Motivators”, developed by Jurgen Appelo, the founder of Management 3.0.
Management 3.0 is a movement of innovation and leadership with management as a group responsibility. Its goal is to help you grow and transform organizations into becoming great places to work.
The Moving Motivators Game is not only a tool for learning about each others intrinsic motivation, it is also an effective communication exercise and it is always great fun for all participants.
プロジェクトの目的をメンバーみんなですり合わせて、楽しく仕事をするための方法をご紹介します。
I introduce a method to work happily. By the members are all on the same page for the Project's Objectives.