HSM Duplexing

2013-11-11 Thread Munif Sadek
Dear Listers

We are installling new tape libraries and thinking of migrating from HSM  
duplexing between Production and DR site to controller level  hardware 
mirroring..  We are z/os, hsm, rmm, oam multiplex site..  can it be done  with 
minumum risk..Final  goal is to save some CPU cycles, align Virtual tape 
libraries with the disks and decomission old tape libraries..

regards,
Munif.

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Re: HSM Duplexing

2013-11-11 Thread Lizette Koehler
What level of z/OS are you running?

What tape libraries will you be using?

Do you mean Replication between Tape Libraries?

How far apart are the Production and DR Sites for the tape libraries?

Lizette


 -Original Message-
 From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On
 Behalf Of Munif Sadek
 Sent: Monday, November 11, 2013 4:10 AM
 To: IBM-MAIN@LISTSERV.UA.EDU
 Subject: HSM Duplexing
 
 Dear Listers
 
 We are installling new tape libraries and thinking of migrating from HSM  
 duplexing
 between Production and DR site to controller level  hardware mirroring..  We 
 are
 z/os, hsm, rmm, oam multiplex site..  can it be done  with minumum 
 risk..Final  goal
 is to save some CPU cycles, align Virtual tape libraries with the disks and
 decomission old tape libraries..
 
 regards,
 Munif.

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Re: HSM Duplexing

2013-11-11 Thread Munif Sadek
Hi Lizette

z/OS 1.13.. and libararies are 8 KMs apart..


regards 
munif

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Re: HSM Duplexing

2013-11-11 Thread R.S.

W dniu 2013-11-11 12:09, Munif Sadek pisze:

Dear Listers

We are installling new tape libraries and thinking of migrating from HSM  
duplexing between Production and DR site to controller level  hardware 
mirroring..  We are z/os, hsm, rmm, oam multiplex site..  can it be done  with 
minumum risk..Final  goal is to save some CPU cycles, align Virtual tape 
libraries with the disks and decomission old tape libraries..

...and what is the question?

BTW: IMHO your goal - to save CPU cycles is not realistic. CPU savings 
on duplex-monoplex change will be marginal.
Of course hardware duplexing (only possible for virtual tapes) is fine, 
because you can duplex any tape, not only HSM tapes.


Regards

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Radoslaw Skorupka
Lodz, Poland






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Re: HSM Duplexing

2013-11-11 Thread Munif Sadek
Thanks Mr Skorupka
Duh..Question is how to migrate from HSM duplexing to Hardware mirroring.. Can 
not find any easy way except than migrating HSM duplexing as it is now  to new 
libraries and then convert overnight to Hardware mirroring.. 
For us better would be to make old library read only ( or seletive volumes) and 
let  new srcatch requirements go to  new Libraries and eventually recycle old 
HSM tapes..

regards Munif.

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Re: HSM Duplexing

2013-11-11 Thread Lizette Koehler
Munif,

We will be changing from HSM Copy of ML2 data to a single copy and that Tape 
Library will replicate to the DR site.

So we will recycle tapes as needed.  And allow new scratch work to go to the 
new Library and allow the tapes in the old library (VTS/ATL) slowly fall off.

We will setup ACS code and a new ESOTERIC for the new Library.

Hope that helps.

Lizette


 -Original Message-
 From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On
 Behalf Of Munif Sadek
 Sent: Monday, November 11, 2013 5:50 PM
 To: IBM-MAIN@LISTSERV.UA.EDU
 Subject: Re: HSM Duplexing
 
 Thanks Mr Skorupka
 Duh..Question is how to migrate from HSM duplexing to Hardware mirroring.. Can
 not find any easy way except than migrating HSM duplexing as it is now  to new
 libraries and then convert overnight to Hardware mirroring..
 For us better would be to make old library read only ( or seletive volumes) 
 and let
 new srcatch requirements go to  new Libraries and eventually recycle old HSM
 tapes..
 
 regards Munif.
 

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