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

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

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

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. >

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

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!

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

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

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

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:

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

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.

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

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

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

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