[illumos-Discuss] md aka svm aka lvm

[Erik Trimble]

  On 8/28/2010 11:13 PM, Garrett D'Amore wrote:
> Do you use or need md/svm/lvm on illumos or OpenSolaris or similar?
>
> If so, why?
>
> I'm contemplating the idea that we don't need this baggage anymore,
> given the existence of ZFS.
>
> Perhaps I'm missing some fundamentally crucial point.  If I am, please
> tell me what it is.
>
> 	- Garrett

Right now, given that there are some things that ZFS doesn't currently 
support (disk concatenation is one),  SVM still does have a use.

Also, if you need to use UFS (and, yes, there are places where UFS has 
to remain the current filesystem of choice due to limitations in ZFS 
performance), then SVM is needed.

Sorry, gotta keep it around for awhile longer. At the current rate, it's 
probably going to be mid-decade before we can kiss UFS goodbye for all 
use cases.

-- 
Erik Trimble
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