Re: Moving LUNs using z/VM
Am 05.04.22 um 23:19 schrieb Martha McConaghy: 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. I think your last resort (using a Linux server) is actually not a bad idea as direct attached FCP is usually faster than EDEV. -- 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
Re: an interesting video about the new z16
That's nice and fun - thx for sharing Dave! On Tue, Apr 5, 2022 at 10:58 PM Dave Jones wrote: > I think that is is an interesting take. > > https://www.youtube.com/watch?v=ZDtaanCENbcHave fun. > DJ > > -- > BEST REGARDS > >DAVE JONES IBM CHAMPION [1] > Managing Director for zSystems Support, zLinux, and Cloud > ++1 281.578.7544 (Cell) > Web: www.itconline.com [2] > 18502 Purdy Ct. Houston, TX 77084 USA > > > > Links: > -- > [1] > > https://www.credly.com/badges/7c92e732-8ab1-4470-98c6-251c33506d69/public_url > [2] http://www.itconline.com/ > > -- > 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
Re: Moving LUNs using z/VM
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 on behalf of Rick Barlow Sent: Tuesday, April 5, 2022 7:30 PM To: 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 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 on behalf of David > Kreuter > Sent: Tuesday, April 5, 2022 5:41 PM > To: 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 on behalf of Martha > McConaghy > Sent: Tuesday, April 5, 2022 5:34:22 PM > To: 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 40014009 > 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 on behalf of Rick Troth > > Sent: Tuesday, April 5, 2022 5:27 PM > To: 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 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 > > > 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 > >> > > >
Re: Moving LUNs using z/VM
Yes, there’s a limit. 1 TB. Regards, Alan Alan Altmark IBM Systems Lab Services Endicott, NY USA > On Apr 5, 2022, at 6:02 PM, Neale Ferguson wrote: > > Is there a maximum edev size? > > > > You can copy the LUNs with DDR, but you have to first define an EDEVICE for > them. > > Regards, > Alan > > Alan Altmark > Senior Managing z/VM Consultant > IBM Systems Lab Services > 1 607 321 7556 Mobile > alan_altm...@us.ibm.com > >> -Original Message- >> From: Linux on 390 Port On Behalf Of >> Martha McConaghy >> Sent: Tuesday, April 5, 2022 5:20 PM >> To: LINUX-390@VM.MARIST.EDU >> Subject: [EXTERNAL] [LINUX-390] Moving LUNs using z/VM >> >> 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? > > -- > 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
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 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 on behalf of David > Kreuter > Sent: Tuesday, April 5, 2022 5:41 PM > To: 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 on behalf of Martha > McConaghy > Sent: Tuesday, April 5, 2022 5:34:22 PM > To: 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 40014009 > 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 on behalf of Rick Troth > > Sent: Tuesday, April 5, 2022 5:27 PM > To: 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 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 > > > 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 /
Re: Moving LUNs using z/VM
If you have the space, YES, copy them also to file images. Good idea. This is the beauty of FBA. There's nothing out of band, just the bytes. No track and record structure to maintain. On Tue, Apr 5, 2022, 17:46 Martha McConaghy 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 on behalf of David > Kreuter > Sent: Tuesday, April 5, 2022 5:41 PM > To: 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 on behalf of Martha > McConaghy > Sent: Tuesday, April 5, 2022 5:34:22 PM > To: 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 40014009 > 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 on behalf of Rick Troth > > Sent: Tuesday, April 5, 2022 5:27 PM > To: 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 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 > > > 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 >
Re: Moving LUNs using z/VM
I have not been able to define an EDEV larger than 1TB without getting errors. However, I have not tired it with z/VM 7.2 yet. Martha Martha McConaghy Marist: System Architect/Technical Lead SHARE Association: Secretary Marist College IT Poughkeepsie, NY 12601 From: Linux on 390 Port on behalf of Neale Ferguson Sent: Tuesday, April 5, 2022 6:01 PM To: LINUX-390@VM.MARIST.EDU Subject: Re: Moving LUNs using z/VM Is there a maximum edev size? You can copy the LUNs with DDR, but you have to first define an EDEVICE for them. Regards, Alan Alan Altmark Senior Managing z/VM Consultant IBM Systems Lab Services 1 607 321 7556 Mobile alan_altm...@us.ibm.com > -Original Message- > From: Linux on 390 Port On Behalf Of > Martha McConaghy > Sent: Tuesday, April 5, 2022 5:20 PM > To: LINUX-390@VM.MARIST.EDU > Subject: [EXTERNAL] [LINUX-390] Moving LUNs using z/VM > > 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? -- 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
Re: Moving LUNs using z/VM
Is there a maximum edev size? You can copy the LUNs with DDR, but you have to first define an EDEVICE for them. Regards, Alan Alan Altmark Senior Managing z/VM Consultant IBM Systems Lab Services 1 607 321 7556 Mobile alan_altm...@us.ibm.com > -Original Message- > From: Linux on 390 Port On Behalf Of > Martha McConaghy > Sent: Tuesday, April 5, 2022 5:20 PM > To: LINUX-390@VM.MARIST.EDU > Subject: [EXTERNAL] [LINUX-390] Moving LUNs using z/VM > > 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? -- 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
Re: Moving LUNs using z/VM
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 on behalf of David Kreuter Sent: Tuesday, April 5, 2022 5:41 PM To: 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 on behalf of Martha McConaghy Sent: Tuesday, April 5, 2022 5:34:22 PM To: 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 40014009 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 on behalf of Rick Troth Sent: Tuesday, April 5, 2022 5:27 PM To: 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 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 > 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
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 on behalf of Martha McConaghy Sent: Tuesday, April 5, 2022 5:34:22 PM To: 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 40014009 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 on behalf of Rick Troth Sent: Tuesday, April 5, 2022 5:27 PM To: 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 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 > 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
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 40014009 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 on behalf of Rick Troth Sent: Tuesday, April 5, 2022 5:27 PM To: 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 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 > 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
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 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 > 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
Re: Moving LUNs using z/VM
You can copy the LUNs with DDR, but you have to first define an EDEVICE for them. Regards, Alan Alan Altmark Senior Managing z/VM Consultant IBM Systems Lab Services 1 607 321 7556 Mobile alan_altm...@us.ibm.com > -Original Message- > From: Linux on 390 Port On Behalf Of > Martha McConaghy > Sent: Tuesday, April 5, 2022 5:20 PM > To: LINUX-390@VM.MARIST.EDU > Subject: [EXTERNAL] [LINUX-390] Moving LUNs using z/VM > > 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? -- 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
Re: Moving LUNs using z/VM
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 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
Moving LUNs using z/VM
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
an interesting video about the new z16
I think that is is an interesting take. https://www.youtube.com/watch?v=ZDtaanCENbcHave fun. DJ -- BEST REGARDS DAVE JONES IBM CHAMPION [1] Managing Director for zSystems Support, zLinux, and Cloud ++1 281.578.7544 (Cell) Web: www.itconline.com [2] 18502 Purdy Ct. Houston, TX 77084 USA Links: -- [1] https://www.credly.com/badges/7c92e732-8ab1-4470-98c6-251c33506d69/public_url [2] http://www.itconline.com/ -- 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
