Did your network folks specifically specify Gbe for the port? If you just let it be negotiated we've found it doesn't work with our switches. We ask the network folks to specify Gbe.
-----Original Message----- From: VM/ESA and z/VM Discussions [mailto:[EMAIL PROTECTED] Behalf Of Aria Bamdad Sent: Wednesday, January 18, 2006 11:28 AM To: [email protected] Subject: Re: OSA Express GbE performance Thanks Adam and Marcy for your comments. I guess for now I will stick with the fast ethernet. I am running zVM 4.3 and moving to 5.2 in a month or so. Level 2 will not want to work with 4.3 so there is no point in trying. Once I am on 5.2 and if I still see the same problem, I will open a PMR. Aria On Wed, 18 Jan 2006 09:59:51 -0600 Marcy Cortes said: >We have seem some lousy FTP performance too. I had a PMR open, but no >time to work on it so it got closed.=20 > >There is a slowness associated with multiple outbound FTP interfaces and >equalcostmultipath. I did receive new module for that. > >But my old 9672 system, with a single OSA FDDI card was much faster than >a new z990 system with 4 OSA GbE interfaces. I don't think it's the GbE >though - z/OS here with same network configuration can get 12,000K - >23,000K per second. They have more engines, but still...=20 > >Open a PMR - I still think there's something not right. Just wish I had >more time to work on that. Glenn S. in Level 2 will be familiar with my >PMR. > >Marcy Cortes >Wells Fargo > >"This message may contain confidential and/or privileged information. >If you are not the addressee or authorized to receive this for the >addressee, you must not use, copy, disclose, or take any action based on >this message or any information herein. If you have received this >message in error, please advise the sender immediately by reply e-mail >and delete this message. Thank you for your cooperation." > > >-----Original Message----- >From: VM/ESA and z/VM Discussions [mailto:[EMAIL PROTECTED] On >Behalf Of Aria Bamdad >Sent: Wednesday, January 18, 2006 7:16 AM >To: [email protected] >Subject: [VMESA-L] OSA Express GbE performance > >Hi, > >I was wondering if others have seen the problem I am seeing on a OSA >Express Gigabit Ethernet as compared to a regular OSA Express Fast >Ethernet. > >When testing an FTP put from VM to a local FTP server, it appears that I >get two to three times better performance when I use the OSA-E FE than >the GbE. > >Both OSAs are connected to the same physical switch. I have looked at >the port statistics on the switch and don't see any errors or anything >else odd. I don't expect to get better performance out of the GbE port >with this test (since the FTP server is on a Fast Ethernet port) but I >would at least expect similar numbers. > >Thanks in advance. > >Aria. ************************************************************************* This communication, including attachments, is for the exclusive use of addressee and may contain proprietary, confidential and/or privileged information. If you are not the intended recipient, any use, copying, disclosure, dissemination or distribution is strictly prohibited. If you are not the intended recipient, please notify the sender immediately by return e-mail, delete this communication and destroy all copies. *************************************************************************
