DB RAID Setup
- From: "Rob Dempsey" <Rob.Dempsey@xxxxxxxxxx>
- To: <oracle-l@xxxxxxxxxxxxx>
- Date: Tue, 18 Nov 2008 17:06:20 -0000
Hi
Oracle 10g2 (data warehouse)
I thought I would ask peoples' thoughts on the following.
I have setup our database whereby the index tablespace and data
tablespace are separate. This is not for performance reason only for
ease of maintenance.
We are being advised by the SAN provider to use the following RAID
layout
Archive redo Logs - RAID 10
Redo Logs - RAID 10
Temp tablespace - RAID 10
Undo tablespace - RAID 10
Index tablespaces - RAID 10
System tablespace - RAID 5
Data tablespaces - RAID 5
Redo logs / Temp tablespace I agree with.
To use RAID 5 for data, I understand there is a write performance hit
but this is a data warehouse so should be ok (Ideally I would like that
RAID 10 as well). But to have the index tablespace on RAID 10 and data
tablespace on RAID 5 I found that strange. When I asked the reason why
I was give the response 'that is what Oracle recommends'.
Has anyone heard this before?
Rob
Other related posts:
