Pretty incredible timing. One of my analysts just informed me about an hour ago that he upgraded one of our test 2008 boxes to 2008 R2 and the SAN allocated disks dissappeared. I had to uninstall and re-install PowerPath to resolve the issue.
It appeared that even though the PowerPath service was running, the PowerPath monitor wasn't working. Attempting to manually start the PowerPath monitor caused an error stating "RPC Server Unavailable. Check that the PowerPath Service is running". The service would fail to start successfully after attempting to restart it. - Sean On Thu, Jul 29, 2010 at 9:45 AM, Ziots, Edward <ezi...@lifespan.org> wrote: > We have to uninstall and then reinstall Powerpath 5.3 SP1 on ours and > reboot to get it to work. > > > > Z > > > > Edward E. Ziots > > CISSP, Network +, Security + > > Network Engineer > > Lifespan Organization > > Email:ezi...@lifespan.org <email%3aezi...@lifespan.org> > > Cell:401-639-3505 > > > > *From:* Steven M. Caesare [mailto:scaes...@caesare.com] > *Sent:* Thursday, July 29, 2010 1:40 PM > > *To:* NT System Admin Issues > *Subject:* RE: EMC Powerpath and Windows 2008 R2 > > > > I think we ARE seeing this issue. > > > > We seem to see four versions of the disc: one for each route (2 HBAs x 2 FC > switches to SAN). > > > > PowerPath is new here, so trying to get a handle on this. > > > > > > -sc > > > > *From:* Jim Holmgren [mailto:jholmg...@xlhealth.com] > *Sent:* Thursday, July 29, 2010 8:59 AM > *To:* NT System Admin Issues > *Subject:* RE: EMC Powerpath and Windows 2008 R2 > > > > I’m running PowerPath v5.3 (build 11) on a 2008R2 server connected to my > CX4-240. I haven’t seen this behavior. Dell r710 with QLogic HBAs. > > > > To the best of my understanding, you are correct – PowerPath basically > makes sure that even though there are multiple physical paths to the target > LUN, only one is ‘seen’ by Windows. > > > > Jim > > > > > > Jim Holmgren > > Manager of Server Engineering > > XLHealth Corporation > > The Warehouse at Camden Yards > > 351 West Camden Street, Suite 100 > > Baltimore, MD 21201 > > 410.625.2200 (main) > > 443.524.8573 (direct) > > 443-506.2400 (cell) > > www.xlhealth.com > > > > > > > > *From:* Ziots, Edward [mailto:ezi...@lifespan.org] > *Sent:* Thursday, July 29, 2010 8:53 AM > *To:* NT System Admin Issues > *Subject:* RE: EMC Powerpath and Windows 2008 R2 > > > > Not using MirrorView… > > > > We have a DMX 1000 SAN, on the backend and Qlogic HBA’s on the server, > along with the Powerpath V5.3 SP1, which claims via the documentation to > support Windows 2008 R2. > > > > Z > > > > Edward E. Ziots > > CISSP, Network +, Security + > > Network Engineer > > Lifespan Organization > > Email:ezi...@lifespan.org <email%3aezi...@lifespan.org> > > Cell:401-639-3505 > > > > *From:* Mayo, Bill [mailto:bem...@pittcountync.gov] > *Sent:* Thursday, July 29, 2010 8:37 AQlogic > *To:* NT System Admin Issues > *Subject:* RE: EMC Powerpath and Windows 2008 R2 > > > > I don't have PowerPath on any 2008 servers, so I can't speak to that. Are > you using MirrorView? If so, it is possible that you are seeing the mirror > copy of the disk as well as the original. > > > > Bill Mayo > > > ------------------------------ > > *From:* Ziots, Edward [mailto:ezi...@lifespan.org] > *Sent:* Thursday, July 29, 2010 8:32 AM > *To:* NT System Admin Issues > *Subject:* EMC Powerpath and Windows 2008 R2 > > Folks, > > > > Is anyone out there using EMC powerpath with Windows 2008 R2, to present > LUN’s from an EMC SAN to servers/Clusters etc etc? > > > > My SAN Guy, basically is telling me that the role service of Multipath I/O > is added to the server when the EMC Powerpath is added but when the drives > are presented we are seeing two disks in disk management, not one, which the > Multipath software in EMC Powerpath is supposed to take care of. ( We are > using Version 5.3 SP1, on X64 Windows 2008 R2) > > > > Nothing showing up on the EMC site accordingly, Any ideas accordingly? > > > > Z > > > > Edward E. Ziots > > CISSP, Network +, Security + > > Network Engineer > > Lifespan Organization > > Email:ezi...@lifespan.org <email%3aezi...@lifespan.org> > > Cell:401-639-3505 > > > > > > > > > > > > > > > > > > > > > CONFIDENTIALITY NOTICE: This email, including attachments, is for the sole > use of the intended recipient(s) and may contain confidential and/or > protected health information. Under the Federal Law (HIPAA), the intended > recipient is obligated to keep this information secure and confidential. Any > disclosure to third parties without authorization from the member of as > permitted by law is prohibited and punishable under Federal Law. If you are > not the intended recipient, please contact the sender by reply e-mail and > destroy all copies of the original message. > > NOTA DE CONFIDENCIALIDAD: Este mensaje incluyendo cualquier anejo es para > uso exclusivo del (los) destinatario (s) y puede incluir información > confidencial y/o información de salud protegida. 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