Re: DFSMShsm questions

[Lionel B Dyck]

Wayne - thank you very much


Lionel B. Dyck <
Website: https://www.lbdsoftware.com

"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 
Glenn Wilcock
Sent: Thursday, May 28, 2020 4:26 PM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: Re: DFSMShsm questions

First, I'm impressed that your subject line has 'DFSMShsm' as opposed to DFHSM 
or any of the other names that it's gone by over the years.

Background on the design for selecting the data set backup target tier, first 
created when physical tape was still dominant  - for small data sets, you don't 
want the overhead of a tape mount for a one-off backup, and for large data sets 
you don't want them going to disk and eating up all of your space.  So, we 
created a SETSYS called DSBACKUP where you could fine tune just which data set 
backups go to disk and which go to tape and the tasking level for each.  With 
virtual tape, this is no longer quite an issue, but the parameters still 
persist.  If you always want you individual backup copies to go to disk, you 
can set the parameters to do so.  

In the DFSMShsm Storage Administration manual SETSYS chapter, there is a 
section names 'SETSYS fast-path for DFSMShsm Functions'.  In this section you 
will find a table with the parameters that affect tape processing. But, Chapter 
10 of the DFSMShsm Implementation & Customization Guide is an exhaustive guide 
for establishing the DFSMShsm tape environment.

Glenn Wilcock
DFSMShsm Architect

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Re: DFSMShsm questions

[Glenn Wilcock]

First, I'm impressed that your subject line has 'DFSMShsm' as opposed to DFHSM 
or any of the other names that it's gone by over the years.

Background on the design for selecting the data set backup target tier, first 
created when physical tape was still dominant  - for small data sets, you don't 
want the overhead of a tape mount for a one-off backup, and for large data sets 
you don't want them going to disk and eating up all of your space.  So, we 
created a SETSYS called DSBACKUP where you could fine tune just which data set 
backups go to disk and which go to tape and the tasking level for each.  With 
virtual tape, this is no longer quite an issue, but the parameters still 
persist.  If you always want you individual backup copies to go to disk, you 
can set the parameters to do so.  

In the DFSMShsm Storage Administration manual SETSYS chapter, there is a 
section names 'SETSYS fast-path for DFSMShsm Functions'.  In this section you 
will find a table with the parameters that affect tape processing. But, Chapter 
10 of the DFSMShsm Implementation & Customization Guide is an exhaustive guide 
for establishing the DFSMShsm tape environment.

Glenn Wilcock
DFSMShsm Architect

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Re: DFSMShsm questions

[Allan Staller]

Comments interspersed

-Original Message-
From: IBM Mainframe Discussion List  On Behalf Of 
Lionel B Dyck
Sent: Wednesday, May 27, 2020 12:54 PM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: DFSMShsm questions

[CAUTION: This Email is from outside the Organization. Unless you trust the 
sender, Don’t click links or open attachments as it may be a Phishing email, 
which can steal your Information and compromise your Computer.]

I can spell HSM and am learning more about it - I have these questions that I 
haven't found the answer to in the pubs (yet).



1.  How can I change the default unit for HBACKDS datasets from tape to
disk?

SETSYS BACKUP(DASD) (might also need SETSYS UNITNAME. Check the fine manual).

2.  I have 2 virtual tape libraries - how do I force HSM to only use the
tapes in one of them (it is currently using the 1st libraries tapes)?

There are a number of approaches here.
1) ETM volume pooling
2) esoteric unit name (in conjunction w/DFHSM SETSYS USERUNITTABLE)

HTH,





Thank you - answers would be ideal (and then I can move on to other
projects) or  a pointer to pub/chapter would also be appreciated.



Y'all be safe, healthy, and blessed.





Lionel B. Dyck <
Website:  
<https://apc01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.lbdsoftware.com%2F&data=02%7C01%7Callan.staller%40HCL.COM%7C1ab40981e42f4d04dcc108d802670120%7C189de737c93a4f5a8b686f4ca9941912%7C0%7C0%7C637261988736235381&sdata=3eKQoBy0KgNAptmoU8Nn5fyn4gPWHDyfoTAIOj2sRJ0%3D&reserved=0>
 
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Re: DFSMShsm questions

[Henri Kuiper]

Lionel,
It's been a long time since I was spaceman...

Do recall that I used to direct HSMBACKUPS to the correct Library (I did my
fair share of ATL migrations lol) via the ACS constructs...based on name a
Dataclass, based on the dataclass a storgrp

link the (tape) storgrp to the correct set of volumes/ATL and presto

Met vriendelijke groeten,

*Henri Kuiper*
*zdevops B.V.*

*Keeping the "z" in Enterprise IT*

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On Wed, May 27, 2020 at 7:54 PM Lionel B Dyck  wrote:

> I can spell HSM and am learning more about it - I have these questions that
> I haven't found the answer to in the pubs (yet).
>
>
>
> 1.  How can I change the default unit for HBACKDS datasets from tape to
> disk?
> 2.  I have 2 virtual tape libraries - how do I force HSM to only use
> the
> tapes in one of them (it is currently using the 1st libraries tapes)?
>
>
>
> Thank you - answers would be ideal (and then I can move on to other
> projects) or  a pointer to pub/chapter would also be appreciated.
>
>
>
> Y'all be safe, healthy, and blessed.
>
>
>
>
>
> Lionel B. Dyck <
> Website:   https://www.lbdsoftware.com
>
> "Worry more about your character than your reputation.  Character is what
> you are, reputation merely what others think you are." - John Wooden
>
>
>
>
> --
> For IBM-MAIN subscribe / signoff / archive access instructions,
> send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
>

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Re: DFSMShsm questions

[Lizette Koehler]

When standing up HSM you should have an ARCCMDxx member that has a lot of
that information in it.

Then there is the SETSYS command to change some things on the fly.

http://www.redbooks.ibm.com/redbooks/pdfs/sg245272.pdf
The Redbook on HSM PRIMER could be helpful


Lizette


-Original Message-
From: IBM Mainframe Discussion List  On Behalf Of
Lionel B Dyck
Sent: Wednesday, May 27, 2020 10:54 AM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: DFSMShsm questions

I can spell HSM and am learning more about it - I have these questions that
I haven't found the answer to in the pubs (yet).

 

1.  How can I change the default unit for HBACKDS datasets from tape to
disk?
2.  I have 2 virtual tape libraries - how do I force HSM to only use the
tapes in one of them (it is currently using the 1st libraries tapes)?

 

Thank you - answers would be ideal (and then I can move on to other
projects) or  a pointer to pub/chapter would also be appreciated.

 

Y'all be safe, healthy, and blessed.

 

 

Lionel B. Dyck <
Website:  <https://www.lbdsoftware.com> https://www.lbdsoftware.com

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

 


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DFSMShsm questions

[Lionel B Dyck]

I can spell HSM and am learning more about it - I have these questions that
I haven't found the answer to in the pubs (yet).

 

1.  How can I change the default unit for HBACKDS datasets from tape to
disk?
2.  I have 2 virtual tape libraries - how do I force HSM to only use the
tapes in one of them (it is currently using the 1st libraries tapes)?

 

Thank you - answers would be ideal (and then I can move on to other
projects) or  a pointer to pub/chapter would also be appreciated.

 

Y'all be safe, healthy, and blessed.

 

 

Lionel B. Dyck <
Website:   https://www.lbdsoftware.com

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

 


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Re: Silly DFSMShsm questions

[Glenn Wilcock]

If it happens again, open a pmr.  ISPF uses device type to determine if 
MIGRAT'x' corresponds to ML'1', ML'2' or ML'C'.  Since you are seeing a 'C', 
but have never targeted 'C'loud object storage, there could be a defect in 
which the device type is not being set appropriately.  Thx.

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Re: Silly DFSMShsm questions

[Chris Taylor]

One last thought.  It would have been interesting to see what the device type 
was in the catalog entries.  This is what is used by ISPF 3.4 to determine 
whether a migrated data set is MIGRAT1, MIGRAT2 or MIGRATC.

Chris Taylor

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Re: Silly DFSMShsm questions

[Chris Taylor]

Oops, never mind.  Missed the part that you had not tried out the cloud support.

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Re: Silly DFSMShsm questions

[Chris Taylor]

Hi,

Is there a chance that someone has tried out the Cloud support in HSM?  MIGRATC 
would normally indicate that a data set has been migrated to a cloud platform 
of some kind.

Chris Taylor

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Re: Silly DFSMShsm questions

[Allan Staller]

I suspect a case of fat finger syndrome (outside of dfHSM). As an alternative, 
you could have recataloged them to MIGRAT

-Original Message-
From: IBM Mainframe Discussion List  On Behalf Of 
Pommier, Rex
Sent: Monday, July 29, 2019 8:25 AM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: Silly DFSMShsm questions

Hi Listers,

Low priority, curiosity, silly question for you.  How does one get a migrate 
status of MIGRATC?  I was doing some cleanup for a developer on Friday and 
stumbled across 2 catalog entries for datasets that were in MIGRATC status.  We 
don't do anything with the cloud and so have never set up anything like this.  
I hadn't even ever seen MIGRATC before.  I was able to delete them by simply 
using "d" in ISPF 3.4 but am pondering where these may have come from.  Any 
ideas?

This does qualify as a Friday type question because I found the datasets on 
Friday.

Thanks,

Rex

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Silly DFSMShsm questions

[Pommier, Rex]

Hi Listers,

Low priority, curiosity, silly question for you.  How does one get a migrate 
status of MIGRATC?  I was doing some cleanup for a developer on Friday and 
stumbled across 2 catalog entries for datasets that were in MIGRATC status.  We 
don't do anything with the cloud and so have never set up anything like this.  
I hadn't even ever seen MIGRATC before.  I was able to delete them by simply 
using "d" in ISPF 3.4 but am pondering where these may have come from.  Any 
ideas?

This does qualify as a Friday type question because I found the datasets on 
Friday.  

Thanks,

Rex

The information contained in this message is confidential, protected from 
disclosure and may be legally privileged.  If the reader of this message is not 
the intended recipient or an employee or agent responsible for delivering this 
message to the intended recipient, you are hereby notified that any disclosure, 
distribution, copying, or any action taken or action omitted in reliance on it, 
is strictly prohibited and may be unlawful.  If you have received this 
communication in error, please notify us immediately by replying to this 
message and destroy the material in its entirety, whether in electronic or hard 
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