Doesn’t the existence of the IEE025I message indicate that z/OS was trying to 
vary them online at IPL but failed?

From: IBM Mainframe Discussion List <[email protected]> On Behalf Of 
Jerry Whitteridge
Sent: Friday, December 6, 2024 11:53 AM
To: [email protected]
Subject: Re: EXTERNAL Email: Re: z/OS Devices under z/VM


If you can easily vary them online to z/OS without doing anything in z/VM check 
your IODF for the  Online at IPL setting for the device



Jerry Whitteridge

Sr Manager Managed Services

[email protected]

480 578 7889



-----Original Message-----

From: IBM Mainframe Discussion List <[email protected]> On Behalf Of 
Matt Hogstrom

Sent: Friday, December 6, 2024 9:50 AM

To: [email protected]

Subject: EXTERNAL Email: Re: z/OS Devices under z/VM



They are defined in z/OS but show offline.  I can attach them and everything 
works fine.  I’ll do some experimentation today to narrow it down.  Thanks 
Peter.



--

Matt Hogstrom



“To achieve great things two things are needed: a plan, and not quite enough 
time.”

- Leonard Bernstein



> On Dec 6, 2024, at 11:31, Farley, Peter 
> <[email protected]> wrote:

>

> That IEE025I error message sure sounds like the z/OS instances do not have 
> devices 9005 to 900F defined in their IODF’s or maybe have no CHPID’s for 
> that range, or perhaps some newer-than-my-experience virtual hardware 
> definition(s) in the VM directory.

>

> The manual description for solving the IEE025I message includes in the 
> description the statement “there are no paths of the indicated type, logical 
> or physical, available for this device or console, or the device is not in a 
> ready state.”.  The advice “Check all logical paths to the device” also 
> appears on that page.

>

> Peter

>

> From: IBM Mainframe Discussion List <[email protected]> On Behalf Of 
> Matt Hogstrom

> Sent: Friday, December 6, 2024 11:11 AM

> To: [email protected]

> Subject: Re: z/OS Devices under z/VM

>

> I have a dummy entry in the directory to define the MDISKS

>

> Here is a snippet

>

> USER MVSDUMMY NOLOG 512M 512M G

> MDISK 9000 3390 0000 END UV9000 MWV ALL ALL ALL

> MDISK 9001 3390 0000 END UV9001 MWV ALL ALL ALL

> MDISK 9002 3390 0000 END UV9002 MWV ALL ALL ALL

> MDISK 9003 3390 0000 END UV9003 MWV ALL ALL ALL

> MDISK 9004 3390 0000 END UV9004 MWV ALL ALL ALL

> MDISK 9005 3390 0000 END UV9005 MWV ALL ALL ALL

> MDISK 9006 3390 0000 END UV9006 MWV ALL ALL ALL

> MDISK 9007 3390 0000 END UV9007 MWV ALL ALL ALL

>

> . . .

>

> The UV9000 - UV9004 were predefined and accessible across all the guests and 
> work fine.

>

> I added UV9005-UV900F (only 5-7 are shown for brevity)

>

> The guests look like this

>

> USER R100 R100 8000M 12000M    (there are three guests)

>

> LINK MVSDUMMY 9000 9000 MW

> LINK MVSDUMMY 9001 9001 MW

> LINK MVSDUMMY 9002 9002 MW

> LINK MVSDUMMY 9003 9003 MW

> LINK MVSDUMMY 9004 9004 MW

> LINK MVSDUMMY 9005 9005 MW

> LINK MVSDUMMY 9006 9006 MW

> LINK MVSDUMMY 9007 9007 MW

>

> I attached the new devices to the first guest, ran DSF to init the volumes 
> and brought them online which was all good.

>

> When the system was re-ipl’d the new devices didn’t con online and give the 
> following message:

>

> RESPONSE=R12F      IEE025I UNIT 9005     HAS NO LOGICAL  PATHS

>

> When “ATTached” they are accessible.

>

> The 9000 - 9004 come online with no intervention.

>

> I’ll keep digging but this is where I’m at.

>

> All systems have write access to the volumes.

>

> --

>

> Matt Hogstrom

>

> “To achieve great things two things are needed: a plan, and not quite enough 
> time.”

>

> - Leonard Bernstein

>

>> On Dec 6, 2024, at 10:52, Farley, Peter 
>> <[email protected]<mailto:[email protected]>>
>>  wrote:

>>

>> Look at the current directory entries for any one of the VM’s and see how 
>> the z/OS disks are defined, then replicate that format for each of the 
>> “shared” disks in all of the VM directories but with RR as the read/write 
>> attribute for each shared disk.

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