Check OS

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How to check/verify the current existing Operating System (Unix/Linux)

Open a terminal program (get to a command prompt) and type uname -a. This will give you your kernel version, but might not mention the distribution your running. To find out what distribution of linux your running (Ex. Ubuntu) try lsb_release -a or cat /etc/*release or cat /etc/issue* or cat /proc/version.

Ref: https://whatsmyos.com/… 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

Oracle & +++

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