Fajar Priyanto wrote:
> Hi all,
> Sorry for the OT.
> I've got an IBM N3300-A10 NAS. It runs Data Ontap 7.2.5.1.
> The problem is, from the docs it says that it only supports either
> RAID-DP or RAID4.
> What I want to achieve is Max Storage Capacity, so I change it from
> RAID-DP to RAID4, but with RAID4, the maximum disk in a RAID Group
> decrease from 14 to 7. In the end, either using RAID-DP or RAID4, the
> capacity is the same.
>
> Now, why RAID5 is not supported? I believe using RAID5, I can get more
> storage capacity, can't I?
>
Design/marketing decision for the features of the board?
> I also notice with some onboard RAID controller, they only support
> either RAID0, RAID1, or RAID1+0. No RAID5.
>
They do not want to go through the trouble of implementing raid5 for
that particular board or they want raid5 to be available on more
expensive options or ...etc
> What's wrong with RAID5, is there any technical limitation with RAID5?
>
Not with the technology itself. They are just not offering raid5. If you
have a problem with that, get another product or go to another company.
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