Re: NotesFromClass-BackUP & Recovery

From: Andrew Mobbs <andrewm_at_chiark.greenend.org.uk>
Date: 26 Mar 2001 10:58:19 +0100 (BST)
Message-ID: <-5C*Us8Ro@news.chiark.greenend.org.uk>

Bruce Walker <rbwalker1_at_mindspring.com> wrote:
>
>DON'T put your REDO logs on a RAID array.
>as the redo logs are sequential.
>could someone elaborate on this....

Depends - if somebody can show me a single HDD that can sustain 20MB/s, and keep queue+write time below 10ms, I'll put my redo logs on a single disk. Until then, I'll use a RAID.

The advice should be "don't put your redo logs on RAID unless you _have_ to".

-- 
Andrew Mobbs - http://www.chiark.greenend.org.uk/~andrewm/

Received on Mon Mar 26 2001 - 03:58:19 CST