My problems are huge at this time. I have problems editing a file within my Linux SLES8 environment without having my putty connection drop. I can try cycling zVM and/or also my Linux guests. Cycling Linux is pretty drastic, even though it can be completed quickly cycling zVM and all guests could be catastrophic in a large, high used environment. That isn't my case today but it is sure a place I would like to be. If no one else is experiencing this I would suspect a configuration error within my environment although I have not cycled VM in some time. We are planning a cycle this weekend. Do people concer a good place to start is IPL? My problems seem to be guest lan / SLES8 qeth, qdio only. I have SLES7 running on VCTC and these run fine. How often are people IPL'ing VM? What types of changes mandate VM IPLs in your environment? Major hardware adds/moves? Network infrastructure? Poor performance? Thanks For the Info, Al Schilla State of Minnesota
-----Original Message----- From: Hall, Ken (IDS ECCS) [mailto:[EMAIL PROTECTED] Sent: Thursday, October 23, 2003 1:52 PM To: [EMAIL PROTECTED] Subject: Re: suse 8 guestlan poor response, dropped packets We're in the middle of analyzing something like this with IBM now. We don't see connection drops on anything but Samba, but ping times (normally .4 ms.) go to 5-10 ms. with spikes up to 1000. This seems to require a VM IPL to correct. Periodically, a single Linux instance will start experiencing ping times of 600-3000 ms. until the instance is rebooted. > -----Original Message----- > From: Linux on 390 Port [mailto:[EMAIL PROTECTED] Behalf Of > Alan Schilla > Sent: Thursday, October 23, 2003 2:48 PM > To: [EMAIL PROTECTED] > Subject: [LINUX-390] suse 8 guestlan poor response, dropped packets > > > We are running a number of qdio qeth guest lans that are > experencing very > poor response. While accessing these servers via putty SSH I will drop > connection often. Sometimes within 5 minute intervals. I when > so far as to > try ping 1000 from an iptables guest lan server that > front-ends an apache > webserver guest lan and this ping received multiple > multi-second responses > (as high as 59 seconds) as well as a 48% packet loss 516 out > of 1000 packets > accepted. I have been following this listserv and noticed > Micheal Lambert's > zVM 4.4 guestlan problems thread and thought this may be > related but we run > zVM 4.3 planning to upgrade to 4.4 shortly. Has anyone seen > this type of > response from guestlan on zVM 4.3 for qeth, qdio? Any > thoughts on how I > should troubleshoot? > Environment: > osa-2 100m > | > zvm tcpip > | > guest lan firewall > | > guest lan apache server > > Al Schilla > State of Minnesota >
