Great numbers !!! Here, we limit to 64 sub-channels for each physical channel... each guest use 2 sub-channels from different cards.. works well :)
On Sat, Oct 8, 2011 at 10:05 PM, Lu GL Gao <[email protected]> wrote: > We had finished multipathing work in our environment. Our problem we > perviously had is caused by using too much FCP sub-channels of every one > physical channel.I summarize our problem resolution below: > (1)The number of FCP sub-channels(for every FCP physical channel) used > should <= 32. > The total number of connections for every FCP physical channel should <= > 128. (note: a connection is subchannel->hba_port->LUN) > (2)After prolem fixed, we had update MCF for Ficon Express card from > G40938.006 to G40938.007, based on Raymond's advice. > (3)Sometimes, if you add too much zfcp devices through YAST, it will be > occasionally happened that wwpn list of luns can not fetched by clicking > "get LUN" button. > I don't know why it happens. But we can bypass it by defining few zfcp a > time. > > Finally, thanks everybody here to share your experience for this problem! > > ---------------------------------------------------------------------- > For LINUX-390 subscribe / signoff / archive access instructions, > send email to [email protected] with the message: INFO LINUX-390 or > visit > http://www.marist.edu/htbin/wlvindex?LINUX-390 > ---------------------------------------------------------------------- > For more information on Linux on System z, visit > http://wiki.linuxvm.org/ > ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 ---------------------------------------------------------------------- For more information on Linux on System z, visit http://wiki.linuxvm.org/
