X / DRM (Direct Rendering Manager) Architectural OverviewMoriyoshi Koizumi
This document contains diagrams and descriptions related to the X Window System architecture for direct and indirect graphics rendering. It shows how OpenGL applications interact with the X server and Mesa library to perform direct graphics rendering using the kernel's Direct Rendering Infrastructure (DRI) and devices' direct rendering capabilities. It also summarizes the DRM authentication process where an application receives a magic cookie from the kernel to authenticate with the DRM driver.
Kubernetes와 Kubernetes on OpenStack 환경의 비교와 그 구축방법에 대해서 알아봅니다.
1. 클라우드 동향
2. Kubernetes vs Kubernetes on OpenStack
3. Kubernetes on OpenStack 구축 방벙
4. Kubernetes on OpenStack 운영 방법
X / DRM (Direct Rendering Manager) Architectural OverviewMoriyoshi Koizumi
This document contains diagrams and descriptions related to the X Window System architecture for direct and indirect graphics rendering. It shows how OpenGL applications interact with the X server and Mesa library to perform direct graphics rendering using the kernel's Direct Rendering Infrastructure (DRI) and devices' direct rendering capabilities. It also summarizes the DRM authentication process where an application receives a magic cookie from the kernel to authenticate with the DRM driver.
Kubernetes와 Kubernetes on OpenStack 환경의 비교와 그 구축방법에 대해서 알아봅니다.
1. 클라우드 동향
2. Kubernetes vs Kubernetes on OpenStack
3. Kubernetes on OpenStack 구축 방벙
4. Kubernetes on OpenStack 운영 방법
IoT Devices Compliant with JC-STAR Using Linux as a Container OSTomohiro Saneyoshi
Security requirements for IoT devices are becoming more defined, as seen with the EU Cyber Resilience Act and Japan’s JC-STAR.
It's common for IoT devices to run Linux as their operating system. However, adopting general-purpose Linux distributions like Ubuntu or Debian, or Yocto-based Linux, presents certain difficulties. This article outlines those difficulties.
It also, it highlights the security benefits of using a Linux-based container OS and explains how to adopt it with JC-STAR, using the "Armadillo Base OS" as an example.
Feb.25.2025@JAWS-UG IoT
14. 設計 リアルタイム・レプリケーション サーバ 1 KVM QEMU QEMU ゲスト OS 1 ゲスト OS 2 iSCSI イニシエータ サーバ 1 KVM QEMU QEMU ゲスト OS 1 ゲスト OS 2 iSCSI イニシエータ サーバ 1 KVM DRBD QEMU QEMU ゲスト OS 1 ゲスト OS 2 LVM2 iSCSI ターゲット サーバ 2 KVM QEMU QEMU ゲスト OS 3 ゲスト OS 4 LVM2 iSCSI ターゲット iSCSI イニシエータ DRBD ( セカンダリ ) DRBD LVM2 iSCSI ターゲット DRBD ( プライマリ ) LVM2 iSCSI ターゲット 1 2 3 4 フェールオーバ
15. 設計 リアルタイム・レプリケーション サーバ 1 KVM DRBD QEMU QEMU ゲスト OS 1 ゲスト OS 2 LVM2 iSCSI ターゲット iSCSI イニシエータ サーバ 1 KVM DRBD ( プライマリ ) QEMU QEMU ゲスト OS 1 ゲスト OS 2 LVM2 iSCSI ターゲット iSCSI イニシエータ サーバ 1 KVM DRBD QEMU QEMU ゲスト OS 1 ゲスト OS 2 LVM2 iSCSI ターゲット サーバ 2 KVM QEMU QEMU ゲスト OS 3 ゲスト OS 4 LVM2 1 2 3 4 iSCSI イニシエータ DRBD ( プライマリ ) QEMU QEMU ゲスト OS 1 ゲスト OS 2 QEMU QEMU ゲスト OS 1 ゲスト OS 2 ダウン! 物理サーバがダウン
16. 設計 ボンディング iSCSI アクセス用 ボンディング DRBD データ用 SAS SAS SAS SAS RAID (BBWC) eth0 eth1 eth2 eth3 eth4 eth5 SAS SAS SAS SAS RAID (BBWC) eth0 eth1 eth2 eth3 eth4 eth5 LAN 監視用