Re: Disk MTBF

From: Niall Litchfield <n-litchfield_at_audit-commission.gov.uk>
Date: Fri, 2 Mar 2001 14:10:02 -0000
Message-ID: <97o9kc$435$1@soap.pipex.net>

comments below

> Am concerned with how much quantifiable confidence one can put in a
> raid device to substitute it for backups.

Backups are not taken to guard against media failure. They are taken to guard against failure of the system which may include media failure. for example from an earlier thread on control files.

.....

I did it once ...

rm /u0*/oradata/dbx/*ctl

Neatly dumped them all for the wrong database - :)

....

no disk failure but database failure necessitating recovery from backup. you can have raid 14million (TM) on this system and you are still left without the proverbial paddle.

--
Niall Litchfield
Oracle DBA
Audit Commission UK

Received on Fri Mar 02 2001 - 08:10:02 CST