debasis maity

12+ years of rich experience on Database Administrations and on Infrastructure Solution Architect. AWS Certified Solution Architect and Senior Oracle DBA
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debasis maity 's Posts

This document will explain docker UCP for Enterprise grade cluster management What is Docker UCP Docker Universal Control Plane (UCP) is the enterprise-grade cluster management solution from Docker. You install it on-premises or in your virtual private cloud, and it helps you manage your Docker swarm and applications through a… Continue Reading DOCKER CONCEPT FOR DBA – PART 6 Installation of docker UCP

Register for free subscriptions 1.Please type url to your favorite browser https://cloud.oracle.com/home 2.Click on green button 3.Please click on “Create a Free Account” 4.Please fill all details along with your credit card information   Note:-Please select among following region(Default Data Region).If you select EMEA or NA you will get more… Continue Reading Oracle DBaaS 1z0-160 part 2:-How to subscribe to Oracle cloud free

Oracle DBaaS cloud services overview A.Oracle DBaaS cloud services level A.1 The Oracle Database Cloud Service – Virtual Image —You have to install this software yourself, and you are responsible for all maintenance operations for this software. You have root privilege, so you can load and run software in the… Continue Reading Oracle DBaaS 1z0-160 part 1:-Oracle DBaaS cloud services overview

KBHS-00712: ORA-29024 received from local HTTP service during backup in RAC Oracle cloud The backup of Oracle RAC DBaaS may fail during manual as well automatic backup. If you manually invoke following command,The backup may not get successful. Login to opc. [opc@pocracdemo1 ~]$ raccli describe job 17 {   “requestStatus”… Continue Reading KBHS-00712: ORA-29024 received from local HTTP service during backup in RAC Oracle cloud

What is a docker swarm? A swarm consists of multiple Docker hosts which run in swarm mode and act as managers (to manage membership and delegation) and workers (which run swarm services). A given Docker host can be a manager, a worker, or perform both roles. When you create a service, you define… Continue Reading DOCKER CONCEPT FOR DBA– PART 5 Installation of Docker Swarm

Docker concept – part 4 Install demo docker and test [user@debasiseric1 ~]$ sudo su – [sudo] password for user: Last login: Mon Apr 9 12:20:36 UTC 2018 on pts/0 [root@debasiseric1 ~]# cd /etc/docker [root@debasiseric1 docker]# docker images REPOSITORY TAG IMAGE ID CREATED SIZE centos 6 70b5d81549ec 3 days ago 195MB… Continue Reading Docker concept for DBA- part 4 Install demo docker and test

DOCKER Use the Device Mapper storage driver Device Mapper is a kernel-based framework that underpins many advanced volume management technologies on Linux. Docker’s devicemapper storage driver leverages the thin provisioning and snapshot capabilities of this framework for image and container management. This article refers to the Device Mapper storage driver as devicemapper, and… Continue Reading DOCKER CONCEPT FOR DBA -PART 3 device mapper for Dcoker

You need to change group to docker for user (non-privileged user) otherwise you get following error:- [user@debasiseric1 ~]$ docker images Got permission denied while trying to connect to the Docker daemon socket at unix:///var/run/docker.sock: Get http://%2Fvar%2Frun%2Fdocker.sock/v1.37/images/json: dial unix /var/run/docker.sock: connect: permission denied Now I will login to root sudo su… Continue Reading docker concept for DBA-part-2 Run docker for non-privileged user (Other than root)

A. Basic Concept of docker   Docker is a platform for developers and sysadmins to develop, deploy, and run applications with containers. The use of Linux containers to deploy applications is called containerization. Containers are not new, but their use for easily deploying applications is. Containerization is increasingly popular because containers are: Flexible:… Continue Reading Docker concept -part 1-Concept and Installation of docker in CentOS

Step by step procedure of GI upgrade from 11.2.0.3 to 11.2.0.4 using CLI or SILENT mODE   In this section we will guide you how to upgrade the GI using cli. Step 1: Before upgrade the ‘HAS’ shows version 11.2.0.3 for release and software version. $ crsctl query has releaseversion… Continue Reading STEP BY STEP PROCEDURE OF GI UPGRADE FROM 11.2.0.3 TO 11.2.0.4 USING CLI OR SILENT MODE