On Thu, 26 Apr 2001, root wrote:
>
> OK, a stupid follow-up question: if I start with 3 drives in a RAID5, I
> will have 2 data drives and 1 parity drive, correct? Now, if I add 3 more
> drives as a second logical volume, will I have to devote 1 of them to
> parity again, or can the initial parity drive be used for both? I would
> like reserve as many of the drives for data as possible, even if it means
> spending more money in the near term to get all 6 drives.
>
In raid 4 you have a parity disk, in raid 5 the parity is stripped across
all disks.
>
> Thanks for all the help. Basic real-world questions like this don't tend
> to make it into faqs, but can go a long way to helping you make informed
> buying decisions.
>
Why not try software raid? Its faster and cheaper.
Holger
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