Re: How to simulate a disk failure

From: Yong Huang <yong321_at_yahoo.com>
Date: 5 Feb 2002 20:06:43 -0800
Message-ID: <b3cb12d6.0202052006.15072273@posting.google.com>

I wonder what difference there really is between DOS copy and Oracle ocopy. When the database is open, copy'ing a datafile works fine (only delete doesn't work). Why do we need ocopy?

Just did a test. FC command (for those who don't know, its equivalent in UNIX is diff) with /b switch gives "FC: no differences encountered" on the two files I copied and ocopied, with or without ALTER TABLESPACE BEGIN BACKUP in sqlplus prior to [o]copy outside of sqlplus.

Yong Huang

Connor McDonald <connor_mcdonald_at_yahoo.com> wrote in message news:<3C603914.7DB3_at_yahoo.com>...
>
> 'ocopy' is designed for backing up datafile whilst they are still open,
> ie, 'ocopy datafile-name backup-location'. I haven't tried, but maybe
> you could try 'ocopy piece-of-junk datafile-name'
Received on Tue Feb 05 2002 - 22:06:43 CST