Tag Archives: linux

How to Configuration GRID/ASM for single instance using UDEV

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Configuration GRID/ASM for single instance using UDEV

UDEV Linux configuration:

What I’m preparing in the background is a RAC installation using two virtual machine running under VirtualBox. For this I have attached to my first virtual machine four fixed size of 1GB disks like this

 

To attach those disks in another virtual machine go to Virtual Media Manager and change their property to shareable like this

udev02

Once you start your guest OS you should see something:

[root@localhost ~]# fdisk -l
.
.
.
Disk /dev/sdb: 1073 MB, 1073741824 bytes, 2097152 sectors
Units = sectors of 1 * 512 = 5
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How to Install Grid/ASM for Single Instance on Oracle cloud:

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Installation of  Grid/ASM for single instance on cloud:

First open the browser any browser and type oracle cloud.

And sign-in your Oracle cloud
And select the three-line bar beside Oracle cloud.

And Select the option of Bare metal and VM and Exa data

After selecting that the next step is select Create DB system
1. Select a compartment name which is you want to provide
Name your DB system which is you want to provide
Select an availability domain
Select a shape type which is virtual machine
Select a shape vm standard 2.2 2 Available Core Count, 1 Node Count which are basic if you want u can change

 … Read more

Installation of 18c oracle binaries and Database at same time

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In this Article you will se how to install oracle 18c binaries as well as Database

Step 1 :
Disable firewall and selinux:
first check the status of firewalld status weather is active or not:

[root@localhost /]# systemctl status firewalld
● firewalld.service – firewalld – dynamic firewall daemon
Loaded: loaded (/usr/lib/systemd/system/firewalld.service; enabled; vendor preset: enabled)
Active: active (running) since Mon 2021-05-03 01:47:30 IST; 4h 12min ago
Docs: man:firewalld(1)
Main PID: 957 (firewalld)
Tasks: 2
CGroup: /system.slice/firewalld.service
└─957 … Read more

RAT

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Real Application Testing – step by step
Source Oracle: 11204 (single instance)
Target Oracle: 12102 (2 nodes RAC cluster+pluggable db)

Pre Requisit:
@Source
Need to decide/find the times, when would like to capture the load, it’s recommended to start small; 15 mins, 30 mins or max 1 hr
We did for couple of hours, not recommended, but not a bad idea, but should start small first and then proceed, if reports look good (6-11, 9-11, 14-16, 19-22)
Let’s assume our company peak time is 10 am – 11 am… Read more