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This article introduces the relevant knowledge of "what is the method of manually cleaning up the RAC environment". In the operation of actual cases, many people will encounter such a dilemma, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!

1. Disable has self-startup

Systemctl disable oracle-ohasd

two。 Delete related files

Rm-rf / etc/oracle

Rm-rf / etc/ora*

Rm-rf / U01

Rm-rf / tmp/CVU*

Rm-rf / tmp/.oracle

Rm-rf / var/tmp/.oracle

Rm-f / etc/init.d/init.ohasd

Rm-f / etc/systemd/system/oracle-ohasd.service

3.dd cleans up asm disks

Dd if=/dev/zero of=/dev/asmdata1 bs=8192 count=128000

Dd if=/dev/zero of=/dev/asmfra1 bs=8192 count=128000

Dd if=/dev/zero of=/dev/asmocr1 bs=8192 count=128000

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