Re: To RAID or not to RAID ??

Since typically a data warehouse is read only, I would have to agree with the vendor and mirror the stuff.

Sudheer Marisetti <marisett_at_bellatlantic.net> wrote in article <335E076D.3358_at_bellatlantic.net>...
> Hi,
>
> I know there were many discussions and threads on this topic. My
> apologies for reigniting the topic. I am looking for people who have
> used RAID for building data warehouse.
>
> We are designing and building a data warehouse about the size of 40-60
> GB on Oracle 7.3.2. Based on my research on this topic I believe RAID-5
> is most suitable in this case. But the hardware vendor providing the
> machine has installed RAID-1 (disk mirroring) and vehemently opposes
> changing this to RAID-5 on the basis that their experience tells them
> that RAID-5 gives a very poor performance for any database applications,
> including data warehousing. Also I received recommendation on using a
> combination of RAID-0+1 (stripping and mirroring).
>
> I would really appreciate if any of you could share your experiences
> with RAID-1 or RAID-5 or RAID-0+1 while building or using data
> warehouses or any database. Here is the set up we have:
>
> - HP9000/K260 Server
> - PA 8000 180 MHz processor (2 of them)
> - HP-UX 10.2
> - 384 MB memory
> - Database: Oracle 7.3.2
>
  Received on Wed Apr 23 1997 - 00:00:00 CDT