Both: SDS and VxVM

[Doug Hughes]

>In reference to Hubert's question:
>
>We switched from SDS to VxVM because it provided so much greater
>functionality and flexability for managing the raw database volumes and
>filesystems volumes. Several systems also use Qualix HA+ with
>cross-connected SSAs.
>
>Since we were moving to VxVM anyway, we encapsulated and mirrored the
>root disk & swap slice. We have occasionally had trouble with boot-up,
>or (of course) when the original root drive fails, recovery can be
>complicated.
>
>Is there an advantage to going back to SDS for the root drive only?
>

This topic actually comes up somewhat regularly. 

The main argument for using SDS for root drives are:
- simplicity - SDS is very simplistic and does this simple operation
quite easily.

against:
- you sacrifice one kind of simplicity for another. If you've already got
VxVM installed, you now have to keep up to date 2 volume management products
on your system and learn two sets of terminology and commands.

It's a personal choice.

--
____________________________________________________________________________
Doug Hughes					Engineering Network Services
System/Net Admin  				Auburn University
			doug@eng.auburn.edu