Our experience with VM and Z/os is that they may not survive. It appears to me to that it drops the second connection too soon after the first one is put back online. We always close system down. With our system it takes about 2 hours to do all three software updates Crispin Hugo Systems Programmer, Macro 4 <http://www.macro4.com/ <http://www.macro4.com/> > Macro 4 plc, The Orangery, Turners Hill Road, Worth, Crawley, RH10 4SS Direct Line: +44 (0)1293 872121 Switchboard: +44 (0) 1293 872000 Fax: +44 (0) 1293 872001 This message contains confidential information and is intended only for the individual named. If you are not the named addressee you should not disseminate, distribute or copy this e-mail. Please notify the sender immediately by e-mail if you have received this e-mail by mistake and delete this e-mail from your system. E-mail transmission cannot be guaranteed to be secure or error-free as information could be intercepted, corrupted, lost, destroyed, arrive late or incomplete, or contain viruses. The sender therefore does not accept liability for any errors or omissions in the contents of this message which arise as a result of e-mail transmission. If verification is required please request a hard-copy version. This message is provided for informational purposes and should not be construed as a solicitation, offer or acceptance of any offer. -----Original Message----- From: The IBM z/VM Operating System [mailto:[email protected]] On Behalf Of Edward M Martin Sent: 23 January 2009 20:26 To: [email protected] Subject: DS6800 concurrent microcode updates Hello Everyone, I am looking into updating the DS6800 to Bundle 6.2.2.85 (ZIP file). We are a z890 with 4 ficon connections to two racks. Each rack has is cross connected to the Ficon connections. I was wondering about how well the actual concurrent update works in the real world. The update indicates that it will drop the first connection, reconnect, drop the second connection and reconnect. Seems I saw on one of these sites that there was some problems with the losing of connections. And I am not sure of a backout plan or if there is an option for backing out. Finally, does anyone have a time frame on how long it takes? Ed Martin Aultman Health Foundation 330-588-4723 ext 40441
________________________________________________________________________ This email has been scanned for all known viruses by the MessageLabs Email Security Service and the Macro 4 plc internal virus protection system. ________________________________________________________________________ ________________________________________________________________________ This email has been scanned for all known viruses by the MessageLabs Email Security Service and the Macro 4 plc internal virus protection system. ________________________________________________________________________
