> On Dec 23, 2014, at 10:53 AM, Garrett D'Amore via illumos-discuss 
> <[email protected]> wrote:
> 
> For various reasons, I’m trolling through the bowels of the illumos IP stack, 
> and there is a bunch of stuff there to support the Solaris Cluster product.  
> This is an HA clustering solution offered by Oracle on Solaris.  It does a 
> fair bit in the kernel.
> 
> In theory Oracle open sourced the HA cluster product a while ago.  I can’t 
> find the source at the moment, though.
> 
> I’m curious, has anyone *ever* successfully gotten this product to run on 
> illumos?  Has anyone ever *tried*?

That is a trick question. The code you're referring to was (mostly?) for the 
global networking option
for SunCluster... back in the day when it was to-be the VAXCluster killer. 
AFAIK, nobody has used 
the global networking or pxfs since around 2004. The intended use case was for 
applications like
Oracle RAC. The more typical use case is for a traditional failover cluster 
where neither global
networking nor pxfs are used.

So the real question is: does anyone use global networking or pxfs? 
NB: pxfs only works for raw, UFS and (IIRC) HSFS... does not work for ZFS
 -- richard 

> 
> Rationale here is that if it doesn’t work, and is never going to work, I can 
> clean up some dead code that is on very hot code paths.  This can have 
> ramifications for performance, particularly in latency sensitive parts of the 
> stack.  (Where I live, every us counts.)
> 
>       - Garrett
> 
> 
> 
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