RE: Raid 1 vs Raid 5 for tablespaces

How's about price? That's pretty important to some folk. :)

Rich

Rich Jesse                           System/Database Administrator
rjesse_at_qtiworld.com                  Quad/Tech Inc, Sussex, WI USA

> -----Original Message-----
> From: Matthew Zito [mailto:mzito_at_gridapp.com]
> Sent: Wednesday, August 13, 2003 11:14 AM
> To: Multiple recipients of list ORACLE-L
> Subject: RE: Raid 1 vs Raid 5 for tablespaces
>
>
>
>
> The _only_ even theoretical advantage to software RAID-0 is
> that software
> RAID implementations tend to have more flexibility than the
> hardware ones.
> For example, there are a number of software RAID
> implementations that allow
> you to grow RAID-0 volumes, something that is generally not allowed in
> hardware RAID, and most of those allow you to do it online.
> Some of the
> better software RAID implementations even allow for online volume type
> conversion - from RAID-1 to RAID-5 when adding a third disk
> to a mirrored
> pair, as a random example.
>
> Beyond that, there's no reason to have software RAID. Any
> other extraneous
> advantages can be gleaned by using a traditional VM on top of hardware
> RAID-ed devices. And even some of that stuff is better in
> hardware. :)
>
> Thanks,
> Matt
>
> --
> Matthew Zito
> GridApp Systems

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Author: Jesse, Rich
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