Thanks, Rick. That is very cool. I don't think I'll need PIPEDDR right now, since it will be pretty easy for me to have both EDEVs on the same VM system. But that is a good trick to keep in mind. Luckily, none of these LUNs are very big, only 120G each. (Gosh, I remember when I would have thought that was huge.)
Martha Martha McConaghy Marist: System Architect/Technical Lead SHARE Association: Secretary Marist College IT Poughkeepsie, NY 12601 ________________________________ From: Linux on 390 Port <LINUX-390@VM.MARIST.EDU> on behalf of Rick Barlow <rrhbar...@gmail.com> Sent: Tuesday, April 5, 2022 7:30 PM To: LINUX-390@VM.MARIST.EDU <LINUX-390@VM.MARIST.EDU> Subject: Re: Moving LUNs using z/VM I moved LUNs from a DS8880 in CA to a new DS8910 in OH. I defined EDEVs on both ends and used PIPEDDR to send it across TCPIP most of the way across the country. I can probably share more details if you need them. a 4G LUN took about 10 minutes depending on how much real data was there. I even moved a 400G LUN. Rick Barlow Velocity Software, Inc On Tue, Apr 5, 2022 at 5:47 PM Martha McConaghy <martha.mccona...@marist.edu> wrote: > That's also a good idea. Thanks, Dave, Alan and Rick! I think, while I'm > at it, I could DDR them to file images so I have a back up too. > > Martha > > > Martha McConaghy > > Marist: System Architect/Technical Lead > > SHARE Association: Secretary > > Marist College IT > > Poughkeepsie, NY 12601 > > ________________________________ > From: Linux on 390 Port <LINUX-390@VM.MARIST.EDU> on behalf of David > Kreuter <dkreu...@vm-resources.com> > Sent: Tuesday, April 5, 2022 5:41 PM > To: LINUX-390@VM.MARIST.EDU <LINUX-390@VM.MARIST.EDU> > Subject: Re: Moving LUNs using z/VM > > Hi Martha > I did this successfully some years back. Make the input a “full pack “ > mini on edev link it read only to reduce stress. > Good luck > Dave > ________________________________ > From: Linux on 390 Port <LINUX-390@VM.MARIST.EDU> on behalf of Martha > McConaghy <martha.mccona...@marist.edu> > Sent: Tuesday, April 5, 2022 5:34:22 PM > To: LINUX-390@VM.MARIST.EDU <LINUX-390@VM.MARIST.EDU> > Subject: Re: Moving LUNs using z/VM > > OK, I want to make sure I am understanding it clearly. Its an interesting > idea, but I really can't afford to blow away the original disks, so want to > be really sure. > > The existing disks are used by the virtual machine by having LOADDEV > statements in the directory for the vm and then IPLing the raddr of the > NPIV port on the FC channel, i.e.: > > LOADDEV PORT 500507630628D700 > LOADDEV LUN 4001400900000000 > IPL 2000 > > Now, the idea is to define an EDEV to VM that points to the same LUN, as > well as one that points to the new LUN on the DS8910. Attach both edev > devices to my machine and then use DDR to copy from the old one to the new > one. Very interesting idea. As long as I don't try to write to the > original LUN, define a minidisk on it, etc, it should be OK, in theory. > Has anyone ever tried this? > > Martha > > > Martha McConaghy > > Marist: System Architect/Technical Lead > > SHARE Association: Secretary > > Marist College IT > > Poughkeepsie, NY 12601 > > ________________________________ > From: Linux on 390 Port <LINUX-390@VM.MARIST.EDU> on behalf of Rick Troth > <r...@casita.net> > Sent: Tuesday, April 5, 2022 5:27 PM > To: LINUX-390@VM.MARIST.EDU <LINUX-390@VM.MARIST.EDU> > Subject: Re: Moving LUNs using z/VM > > What I mean is: > define them even temporarily as EDEVs for the DDR and go for it. > > > > On Tue, Apr 5, 2022, 17:25 Rick Troth <r...@casita.net> wrote: > > > If they're defined as EDEVs then you can use DDR. > > > > FBA (EDEV or 3370, etc al) being fixed block, copying the whole disk will > > include the boot partition. (Partition tables are not really needed on > > fixed block disks, even laptop SSDs, but don't get me started.) Any > > "partition table", and all partitions, would be included in the DDR copy. > > > > > > > > On Tue, Apr 5, 2022, 17:19 Martha McConaghy <martha.mccona...@marist.edu > > > > wrote: > > > >> I have a few RHEL servers that run on z/VM but boot off of a direct > >> attached SAN LUN (not an EDEV or ECKD). They reside on an old DS8870 > and I > >> need to move them to a new DS8910. (No PPRC, GDPS, etc.) Is there a > way > >> that I could use VM to copy these LUNs to the new storage? I was > looking > >> at DDR, but wasn't sure if the FB-512 type would work for these. They > >> aren't CMS format disks, obviously, so that isn't an option. I'm > trying to > >> avoid having to attach them to a Linux server to do the work, but will > if > >> that is the only option. Since these are boot volumes, I have to copy > the > >> boot partition and boot record, not just the filesystems. So, a > physical > >> copy would be the best. > >> > >> Any ideas? > >> > >> Martha > >> > >> > >> Martha McConaghy > >> > >> Marist: System Architect/Technical Lead > >> > >> SHARE Association: Secretary > >> > >> Marist College IT > >> > >> Poughkeepsie, NY 12601 > >> > >> > >> ---------------------------------------------------------------------- > >> For LINUX-390 subscribe / signoff / archive access instructions, > >> send email to lists...@vm.marist.edu with the message: INFO LINUX-390 > or > >> visit > >> http://www2.marist.edu/htbin/wlvindex?LINUX-390 > >> > > > > ---------------------------------------------------------------------- > For LINUX-390 subscribe / signoff / archive access instructions, > send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or > visit > http://www2.marist.edu/htbin/wlvindex?LINUX-390 > > ---------------------------------------------------------------------- > For LINUX-390 subscribe / signoff / archive access instructions, > send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or > visit > http://www2.marist.edu/htbin/wlvindex?LINUX-390 > > ---------------------------------------------------------------------- > For LINUX-390 subscribe / signoff / archive access instructions, > send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or > visit > http://www2.marist.edu/htbin/wlvindex?LINUX-390 > > ---------------------------------------------------------------------- > For LINUX-390 subscribe / signoff / archive access instructions, > send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or > visit > http://www2.marist.edu/htbin/wlvindex?LINUX-390 > ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www2.marist.edu/htbin/wlvindex?LINUX-390 ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www2.marist.edu/htbin/wlvindex?LINUX-390
