[pca] [[slightly] off-topic Warning]: Solaris 10 SPARC patch 144500-19 and EMC PowerPath

[Thomas Gouverneur]

Dear,

Please note that I've kept some track of this issue there
by adding comments on this patch:

http://wesunsolve.net/patch/id/144500-19

HTH,

Thomas

On Thu, 18 Aug 2011 12:05:38 +0100
John Horne <john.horne at plymouth.ac.uk> wrote:

> On Thu, 2011-08-18 at 10:30 +0100, Don O'Malley wrote:
> > Hi Loris/All,
> > 
> > Firstly, apologies that you found this out the hard way. I am in the
> > process of getting a README note added to this KU to warn customers of
> > the issue.
> > 
> > This is a late breaking issue that we are currently investigating in
> > partnership with EMC.
> > The cause of this issue is that EMC PowerPath is using private
> > interfaces in Solaris, which Oracle have changed in the latest KU
> > deliverables. While it is not strictly an Oracle problem, we are doing
> > everything we can to find a good solution for our customers that use
> > EMC PowerPath.
> > 
> > I will keep the PCA alias in the loop as I know more. Please bear with
> > us.
> > 
> > Best,
> > -Don
> > 
> > 
> > On 18/08/11 09:50, loris.serena at bnymellon.com wrote: 
> > > Just FYI, 
> > > 
> > > Installing kernel patch 144500-19 on a system with PowerPath will
> > > throw the box in a CPU panic boot loop. 
> > > (learned this the hard way) 
> > > 
> > > https://forums.oracle.com/forums/thread.jspa?messageID=9792685 
> > > 
> Hello,
> 
> We too had the above problem on our two T2000 servers. After booting a
> BAD TRAP loop involving module 'unix' occurred. Fortunately we could
> boot into failsafe mode, and then backout the kernel patch.
> 
> However, we do not use EMC powerpath, but do use Falcon IPStor with
> DynaPath. As such I would draw peoples attention to the comment
> (https://forums.oracle.com/forums/thread.jspa?messageID=9792685):
> 
>     Problem is that PowerPath and possible other multipath vendors are
>     using a Solaris private interface which is just that, private.
> 
> and 'possible other multipath vendors'. So just because EMC is
> mentioned, don't think it is only EMC and won't affect you :-)
> 
> 
> 
> 
> 
> John.
> 
> -- 
> John Horne, University of Plymouth, UK
> Tel: +44 (0)1752 587287    Fax: +44 (0)1752 587001
> 
> 


-- 
Gouverneur Thomas <tgo at ians.be>