Why don't you ATTACH the LPAR Linux volume's device address to your VM
Linux guest? Then you should be able to dynamically add the address
(using that /proc interface that I keep forgetting). Once you've done
that, simply do a "mount" command. Oh, make sure that the filesystem is
not mounted on the LPAR Linux.

Another possibility is to "read only" mount the LPAR volume to the LPAR
linux, then use DD or z/OS to COPY the contents to another address, then
do the above.


--
John McKown
Senior Systems Programmer
UICI Insurance Center
Information Technology

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> -----Original Message-----
> From: Linux on 390 Port [mailto:[EMAIL PROTECTED] On 
> Behalf Of James Melin
> Sent: Friday, October 08, 2004 12:34 PM
> To: [EMAIL PROTECTED]
> Subject: Re: Moving an LPAR Linux to VM - Problem
> 
> 
> I have a GBE. You thinking NFS mount them?
> 
> Is there a way to just have z/OS native LPAR linux volumes 
> show up readable
> by linux in VM?
> 
> 
> 
> 
> 
>              "Post, Mark K"
>              <[EMAIL PROTECTED]
>              m>                                               
>           To
>              Sent by: Linux on         [EMAIL PROTECTED]
>              390 Port                                         
>           cc
>              <[EMAIL PROTECTED]
>              IST.EDU>                                         
>      Subject
>                                        Re: Moving an LPAR 
> Linux to VM -
>                                        Problem
>              10/08/2004 11:46
>              AM
> 
> 
>              Please respond to
>              Linux on 390 Port
>              <[EMAIL PROTECTED]
>                  IST.EDU>
> 
> 
> 
> 
> 
> 
> How much network bandwidth do you have between the Linux LPAR 
> and the Linux
> Guest, compared to how much data you need to move?
> 
> 
> Mark Post
> 
> -----Original Message-----
> From: Linux on 390 Port [mailto:[EMAIL PROTECTED] On 
> Behalf Of James
> Melin
> Sent: Friday, October 08, 2004 8:45 AM
> To: [EMAIL PROTECTED]
> Subject: Moving an LPAR Linux to VM - Problem
> 
> 
> Hello learned list members... got a good one for you.
> 
> Once upon a time, when we first built Linux, we went with 
> LPAR mode because
> this was strictly under the radar. I was given some disk, and 
> as it turns
> out, our Storage Administrator at the time fat-fingered the 
> amount of space
> for the 'mod-9' volumes, and we had 10116 cyl volumes instead 
> of 10016 cyl.
> So my volumes were 100 cyl 'fat'. We found this out at a 
> Disaster recovery
> exercise.
> 
> Anyway, an attempted solution was to re-allocate the space 
> for the linux
> partion to be slightly less than a real mod 9. 150250 tracks, 
> I believe. We
> were still doing full volume backups on those because we 
> hadn't discovered
> the 'tracks' option for dfsms.
> 
> We have the following  situation. 1) We cannot define the 
> 'fat' mod 9's to
> VM. Or at least we don't know how. When we tried that with 
> one that was
> empty, we were unable to get VM to recognized the disk with 
> 10116 cyls.
> They
> worked if we just told it they were 10016 cyls.  That said, I 
> cannot simply
> put those devices in the VM configuration and mount them for 
> copy of the
> file system to new disk.
> 
> Conversely, the Linux LPAR's are device restricted, in that 
> they cannot see
> all of the disk farm. They are also on a different 
> mainframe(z/800 - VM on
> z/900), though the disk is shared. I'm told dynamically 
> adding mod 9 disk
> that z/VM knows about to the z/800 is not possible, so I 
> cannot mount those
> volumes and do a disk copy.
> 
> I attempted to do a 'tracks' backup of the disk volume to 
> just cover the
> tracks where the z/linux file system was residing and then 
> restore it to
> disk that VM can use via z/os. That didn't seem to work. I 
> didn't get a
> mountable file system on the VM defined disk under a freshly 
> defined linux
> guest.
> 
> The only thing I can think of is try to find a mod 9 or two 
> that the z/800
> Lpar,  and VM Lpar can all see, and do something like locally 
> mount the
> mod-9, copy the file system and then attempt to mount it 
> under a vm linux
> guest.
> 
> If anyone else has an idea, I'm all ears. This pretty much 
> took my entire
> day yesterday, trying different variations on this.
> 
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