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 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 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 facsímile, incluyendo lo adjunto, es para el uso exclusivo del destinatario(s) y puede contener información confidencial y/o información protegida de salud. En virtud de la Ley Federal (HIPAA), el destinatario tiene la obligación de mantener esta información segura y confidencial. Cualquier divulgación a terceros sin la autorización de los miembros de lo permitido por la ley está prohibido y penado en virtud de la Ley Federal. Si usted no es el destinatario, por favor, póngase en contacto con el remitente por teléfono y destruir todas las copias del mensaje original ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~
