Re: NFS Export of Data Set File System

2024-01-10 Thread Paul Gilmartin 
On Wed, 10 Jan 2024 10:02:54 -0600, Lionel B. Dyck wrote:

>Not to argue - they should have a User's Guide but they don't.  The key with 
>dsfs is that once you understand the /dsfs/type (txt/bin/rec/sysout) that is 
>it no different than using any other file in a filesystem.
>
Case sensitivity?

Directory links to files in other directories?

Symbolic links?

Concurrent updates to the same file by multiple jobs with O_APPEND?

Unless such things are handled transparently by the "Colony address space"
and the "Utility file system" there's need for a User's Guide.  The product
shouldn't have gone to GA without one.

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gil

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Re: NFS Export of Data Set File System

2024-01-10 Thread Lionel B. Dyck 
Not to argue - they should have a User's Guide but they don't.  The key with 
dsfs is that once you understand the /dsfs/type (txt/bin/rec/sysout) that is it 
no different than using any other file in a filesystem.


Lionel B. Dyck <><
Github: https://github.com/lbdyck

“Worry more about your character than your reputation. Character is what you 
are, reputation merely what others think you are.”   - - - John Wooden

-Original Message-
From: IBM Mainframe Discussion List  On Behalf Of 
Paul Gilmartin
Sent: Wednesday, January 10, 2024 10:00 AM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: Re: NFS Export of Data Set File System

On Wed, 10 Jan 2024 09:12:29 -0600, Lionel B. Dyck  wrote:

>There is no users guide ...
>
Has IBM not noticed the lack?

>... but there is an admin guide at 
> https://www.ibm.com/docs/en/zos/3.1.0?topic=administration-dsfs-guide
>
That's for admins.  But if there are differences between DSFS and a POSIX 
filesystem they should be described in a User's Guide.

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Re: NFS Export of Data Set File System

2024-01-10 Thread Paul Gilmartin 
On Wed, 10 Jan 2024 09:12:29 -0600, Lionel B. Dyck  wrote:

>There is no users guide ...
>
Has IBM not noticed the lack?

>... but there is an admin guide at 
> https://www.ibm.com/docs/en/zos/3.1.0?topic=administration-dsfs-guide
>
That's for admins.  But if there are differences between DSFS and a POSIX
filesystem they should be described in a User's Guide.

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gil

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Re: NFS Export of Data Set File System

2024-01-10 Thread kekronbekron 
But, if you're willing to pay, this can do it - https://virtualzcomputing.com/


On Wednesday, January 10th, 2024 at 20:36, Paul Gilmartin 
<042bfe9c879d-dmarc-requ...@listserv.ua.edu> wrote:


> On Wed, 10 Jan 2024 14:37:22 +, Mark Jacobs wrote:
> 
> > Can /dsfs and the directories under it be NFS exported such that 
> > Windows/Linux clients can connect to it and then directly read/write z/OS 
> > datasets?
> 
> What are you looking for beyond:
> https://www.ibm.com/docs/en/zos/3.1.0?topic=introduction-zos-conventional-mvs-data-sets
> 
> 
> Where's the DSFS User's Guide, which ought to treat such topics?
> 
> --
> gil
> 
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Re: NFS Export of Data Set File System

2024-01-10 Thread Lionel B. Dyck 
There is no users guide but there is an admin guide at 
https://www.ibm.com/docs/en/zos/3.1.0?topic=administration-dsfs-guide


Lionel B. Dyck <><
Github: https://github.com/lbdyck

“Worry more about your character than your reputation. Character is what you 
are, reputation merely what others think you are.”   - - - John Wooden

-Original Message-
From: IBM Mainframe Discussion List  On Behalf Of 
Paul Gilmartin
Sent: Wednesday, January 10, 2024 9:07 AM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: Re: NFS Export of Data Set File System

On Wed, 10 Jan 2024 14:37:22 +, Mark Jacobs wrote:

>Can /dsfs and the directories under it be NFS exported such that Windows/Linux 
>clients can connect to it and then directly read/write z/OS datasets?
>
What are you looking for beyond:
<https://www.ibm.com/docs/en/zos/3.1.0?topic=introduction-zos-conventional-mvs-data-sets>

Where's the DSFS User's Guide, which ought to treat such topics?

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gil

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Re: NFS Export of Data Set File System

2024-01-10 Thread Paul Gilmartin 
On Wed, 10 Jan 2024 14:37:22 +, Mark Jacobs wrote:

>Can /dsfs and the directories under it be NFS exported such that Windows/Linux 
>clients can connect to it and then directly read/write z/OS datasets?
>
What are you looking for beyond:


Where's the DSFS User's Guide, which ought to treat such topics?

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Re: NFS Export of Data Set File System

2024-01-10 Thread kekronbekron 
Ah yes sorry.
Although what I said sounds "interesting", thinking about it a bit more, I 
don't think what I said below is possible.

User has to interact with the unionfs and the "root" of it has to be NFS (for 
reachability over network).
But, I don't think NFS allows its sub-tree or whatever to be anything other 
than further NFS sub-mounts.


On Wednesday, January 10th, 2024 at 20:20, Mark Jacobs 
<0224d287a4b1-dmarc-requ...@listserv.ua.edu> wrote:


> Do you mean the Union File System?
> 
> Mark Jacobs
> 
> Sent from ProtonMail, Swiss-based encrypted email.
> 
> GPG Public Key - 
> https://api.protonmail.ch/pks/lookup?op=get&search=markjac...@protonmail.com
> 
> 
> On Wednesday, January 10th, 2024 at 9:42 AM, kekronbekron 
> 02dee3fcae33-dmarc-requ...@listserv.ua.edu wrote:
> 
> 
> 
> > Something called OverlayFS was recently added to zOS.
> > So in theory,
> > 
> > top-level overlayfs --> NFS mount in zOS --> DSFS underneath (serving some 
> > paths/directories for the overlayFS)
> > 
> > ... this sounds possible?
> > 
> > On Wednesday, January 10th, 2024 at 20:07, Mark Jacobs 
> > 0224d287a4b1-dmarc-requ...@listserv.ua.edu wrote:
> > 
> > > Can /dsfs and the directories under it be NFS exported such that 
> > > Windows/Linux clients can connect to it and then directly read/write z/OS 
> > > datasets?
> > > 
> > > Mark Jacobs
> > > 
> > > Sent from ProtonMail, Swiss-based encrypted email.
> > > 
> > > GPG Public Key - 
> > > https://api.protonmail.ch/pks/lookup?op=get&search=markjac...@protonmail.com
> > > 
> > > --
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Re: NFS Export of Data Set File System

2024-01-10 Thread Mark Jacobs 
Do you mean the Union File System?

Mark Jacobs 

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On Wednesday, January 10th, 2024 at 9:42 AM, kekronbekron 
<02dee3fcae33-dmarc-requ...@listserv.ua.edu> wrote:


> Something called OverlayFS was recently added to zOS.
> So in theory,
> 
> top-level overlayfs --> NFS mount in zOS --> DSFS underneath (serving some 
> paths/directories for the overlayFS)
> 
> 
> ... this sounds possible?
> 
> 
> 
> On Wednesday, January 10th, 2024 at 20:07, Mark Jacobs 
> 0224d287a4b1-dmarc-requ...@listserv.ua.edu wrote:
> 
> 
> 
> > Can /dsfs and the directories under it be NFS exported such that 
> > Windows/Linux clients can connect to it and then directly read/write z/OS 
> > datasets?
> > 
> > Mark Jacobs
> > 
> > Sent from ProtonMail, Swiss-based encrypted email.
> > 
> > GPG Public Key - 
> > https://api.protonmail.ch/pks/lookup?op=get&search=markjac...@protonmail.com
> > 
> > --
> > For IBM-MAIN subscribe / signoff / archive access instructions,
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> 
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Re: NFS Export of Data Set File System

2024-01-10 Thread kekronbekron 
Something called OverlayFS was recently added to zOS.
So in theory, 

top-level overlayfs --> NFS mount in zOS --> DSFS underneath (serving some 
paths/directories for the overlayFS)

... this sounds possible?



On Wednesday, January 10th, 2024 at 20:07, Mark Jacobs 
<0224d287a4b1-dmarc-requ...@listserv.ua.edu> wrote:


> Can /dsfs and the directories under it be NFS exported such that 
> Windows/Linux clients can connect to it and then directly read/write z/OS 
> datasets?
> 
> Mark Jacobs
> 
> Sent from ProtonMail, Swiss-based encrypted email.
> 
> GPG Public Key - 
> https://api.protonmail.ch/pks/lookup?op=get&search=markjac...@protonmail.com
> 
> --
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NFS Export of Data Set File System

2024-01-10 Thread Mark Jacobs 
Can /dsfs and the directories under it be NFS exported such that Windows/Linux 
clients can connect to it and then directly read/write z/OS datasets?

Mark Jacobs

Sent from [ProtonMail](https://protonmail.com), Swiss-based encrypted email.

GPG Public Key - 
https://api.protonmail.ch/pks/lookup?op=get&search=markjac...@protonmail.com

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