No, configchange on the dmx fixed that. All seems fine now on the rhel5-box.
Read-slowness actually shows up on rhel4.5, but only after multipathing a device with dm. Using Powerpath on the same server shows no performance degradation. -- Jussi > Hi Jussi. > > Are you still seeing the links going up and down? The present > default DM-MPIO policy for the Symmetrix is to fail immediately. If > you're having link issues then you'll continue to bounce back and forth > between paths and this will affect the performance. > You've stated that the performance was degraded when DM-MPIO is > used. Was the performance better without the use of DM-MPIO and the > setting of the D bit on the FA? > > Regards, > Wayne. > > > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Jussi Silvennoinen > Sent: Wednesday, May 30, 2007 6:31 AM > To: [email protected] > Subject: [rhelv5-list] Re: rhel5 + qlogic + DMX3 (Was: nothing) > > > Jussi, > > > > Sounds like a simple configuration issue. > > > > Try checking that the D bit has been set on the FA per the EMC Host > > Connectivity Guide for Linux on PowerLink: > > > > > https://powerlink.emc.com/nsepn/webapps/btg548664833igtcuup4826/km/live1 > /en_US/Offering_Technical/Technical_Documentation/300-003-865_a04_elccnt > _0.pdf?mtcs=ZXZlbnRUeXBlPUttQ2xpY2tDb250ZW50RXZlbnQsZG9jdW1lbnRJZD0wOTAx > NDA2NjgwMjU3MzhhLG5hdmVOb2RlPVNvZndhcmVEb3dubG9hZHMtMg__ > > > > Regards, > > Thanks, got it sorted. > > Still a bit puzzled why I'm seeing very slow reads from the array after > I > multipath it. _______________________________________________ rhelv5-list mailing list [email protected] https://www.redhat.com/mailman/listinfo/rhelv5-list
