fc5 : raid array does not appear as one drive?

[Robin Laing]

Bruno Wolff III wrote:
> On Mon, Aug 28, 2006 at 10:05:18 -0700,
>   Bazooka Joe <fastfish at gmail.com> wrote:
> 
>>I used to pay for expensive true hardware raid cards then I switched
>>to software raid and never looked back.  The extra overhead is not
>>noticeable and recovery/management is easier than hardware raid IMO.
> 
> 
> There are advantages to having hardware raid with battery backed cache,
> particularly when running databases. But for home use the flexibility
> of software raid is nice.
> 

What is the benefit of battery backed cache when on a UPS?  I have never 
understood the reasoning behind this.

I am debating getting a full RAID card or using software RAID for a new 
storage box.

-- 
Robin Laing