Forwarding to this thread the reply from Matthew Zito. On Fri, Apr 15, 2011 at 10:00 PM, Zito, Matthew <Matt_Zito@xxxxxxx> wrote: > > Hey guys, > > I haven't gotten this email address straightened out on Oracle-L yet, but I > figured I'd drop you a note, and you could forward it on to the list if you > cared to. > > The doc you read is correct, powerpath will cheerfully work with any of the > devices you send IOs to, because the kernel driver intercepts requests for > all devices and routes them through itself before dishing them down the > appropriate path. > > However, setting scandisks to the emcpower has the administrative benefits > of making sure the disks don't show up twice. However, even if ASM picks > the first of the two disks, it will still be load-balanced successfully. > > Thanks, > Matt Zito > (former EMC solutions architect) > ________________________________________ > From: oracle-l-bounce@xxxxxxxxxxxxx [oracle-l-bounce@xxxxxxxxxxxxx] On > Behalf Of Radoulov, Dimitre [cichomitiko@xxxxxxxxx] > Sent: Friday, April 15, 2011 9:21 AM > To: Karl Arao > Cc: ORACLE-L > Subject: Re: ASM and EMC PowerPath > > Hi Karl, > thanks! > > Unfortunately I'm not able to run such a test, at least not for now. > > So please let me/us know, if/when you have updates on this from the EMC > support. > > > Best regards > Dimitre > > > On 14/04/2011 19:01, Karl Arao wrote: > Hi Dimitre, > > I'm also curious about that.. especially on this > > "Unlike most multipath drivers, PowerPath will support full multipath > capabilites even with the regular names. PowerPath and ASMLib now work > together successfully." > > so I asked some friends from EMC. So we are still waiting for the EMC > support for their answer. > > But for a really definitive answer.. if you have a test or r&d environment > you can unplug the storage cable connection and see if the fail-over works > even if there's no scanorder or scanexclude. And if this does not work, it > will be just a simple configuration file change and restart of the nodes. > > > -- > Karl Arao > karlarao.wordpress.com<http://karlarao.wordpress.com> > karlarao.tiddlyspot.com<http://karlarao.tiddlyspot.com> > > -- Karl Arao karlarao.wordpress.com karlarao.tiddlyspot.com