Did you disable receive-side scaling in Win2k3 on both sides?
Z Edward E. Ziots, CISSP, Security +, Network + Security Engineer Lifespan Organization [email protected] From: David Lum [mailto:[email protected]] Sent: Thursday, October 25, 2012 11:48 AM To: NT System Admin Issues Subject: Hyper-V puzzler New 2008 R2 physical server (Called SERVER001) with Hyper-V, three physical NIC's (well, six, but three are disconnected). Two 2008 R2 guests on SERVER001, called VM01 and VM02 SERVER001 uses NIC0 VM01 uses NIC1 VM02 uses NIC02 Other physical server onsite: 2003 SBS server, called 2003Server Tests: File Copy from 2003Server --> SERVER001 = FAST File Copy from 2003 Server --> VM01 or VM02 = SLOW Change: Assign VM01 NIC to NIC0 Test: File Copy from 2003 Server --> VM01 = SLOW Change: Add "Legacy Network Adapter" to VM01, assign it to NIC1 Test: File Copy from 2003 Server --> VM01 = FAST Why would a legacy adapter in 2008 R2 VM be faster than the standard network emulation? I have set up other Hyper-V environments and not run into this issue before. Google-Fu gives several suggestions that I may go through, but I was wondering if anyone else has seen this? David Lum Sr. Systems Engineer // NWEATM Office 503.548.5229 // Cell (voice/text) 503.267.9764 ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to [email protected] with the body: unsubscribe ntsysadmin ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to [email protected] with the body: unsubscribe ntsysadmin
