Linux on 390 Port <[email protected]> wrote on 05/01/2012 06:08:43 PM:
> From: Rob van der Heij <[email protected]> > To: [email protected] > Date: 05/01/2012 06:25 PM > Subject: Re: question migrating an LPAR full of guests to a new machine > Sent by: Linux on 390 Port <[email protected]> > > On Tue, May 1, 2012 at 11:35 PM, Robert J Brenneman <[email protected]>wrote: > > > I second what Rob said - the WWPN tool is designed for this very situation. > > > > No FICON was designed for this ;-) Maybe the FCP folks never anticipated > to swap out 100's of servers in a few hours and expecting it to work. > > And we have not even told the OP that the opposite (swapping out the disk > subsystem) is even more tedious because it requires changes in each Linux > guest. I find it hard to believe that nobody tried to put a DNS into the > SAN... > > Rob Ficon wasn't designed for switch upgrades though... There should be an IBM product that starts with T to fix this problem across all platforms. Lun discovery should alleviate changes in each Linux guest a bit. The symbolic wwpn and symbolic wwnn fields in the nameserver could be used for something like a DNS. The problem is that they are optional, and the SCSI machine loader would need a few enhancements. Regards, Ray Higgs System z FCP Firmware Development Bld. 706, B42 2455 South Road Poughkeepsie, NY 12601 (845) 435-8666, T/L 295-8666 [email protected] ---------------------------------------------------------------------- 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/
