Since a reply has not been given do the DLM question about tape drive
attachment, I will provide it. This is no longer a supported option on the DLm
and never for some reason on the DLM8500 even though the hardware to do so is
present. Please note the words no longer supported. For those who do not know
me before retirement I worked at EMC then Dell in the DLm group and prior to
that STK/SUN. For of the 2000's I have only worked on MF virtual tape. While
not supported the DLm did have some customers use it a few years back the code
to do this was still in the DLm it may have been removed by now. I do not
believe the documentation explains how to do this any longer and not even 100%
sure the hardware is still in the DLm VTE's it was when I left 2 years ago.
One thing to know about this solution is was direct attach only and 1
tape drive per VTE only. So those who did use usually were smaller sites. Most
of these sites used DLm2100 or DLm2500's and usually had only 1 or 2 VTE's
which gave you a maximum of 2 tape drives. I hope this helps to clarify.
Most of the customers I worked with over the last decade or more have
moved away from physical tapes in favor of replication. And they do this one or
more sites usually with at least one of them made immutable. Using replication
allows for all tapes to be available at the remote sites seconds to minutes
after tape close And now all data is protected not just backups, most of the
customers I worked with wanted to protect data not backups. Thinking that the
only tapes created on a Mainframe are backups is a Open Systems thought process
which is true in most of their cases.
Another advantage in my opinion of Virtual tape is that you can use the
storage systems to take snapshots locally and then make the snap immutable
giving you controllable Point in Time recovery options from tape. This is easy
to say but the proper implementation is in the details and requires care and
planning.
And my last point is as I reviewed the suggestions offered the one
thought that kept entering my mind is do not forget about Tape Library control
if not connected to a system like a VTS. This is why the DLM only supported
stand alone drives since we did not want to code library control into the
solution.
Hope fully this provides the answer to the DLm question.
Carl Swanson
carl.swans...@verizon.net
Mobile: 215.688.1459
-----Original Message-----
From: IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU> On Behalf Of
Bodra - Pessoal
Sent: Monday, January 27, 2025 7:15 AM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: RES: Mainframe physical tape backup
Hi Peter,
I can´t answer this question about DLM8500. We use Luminex MVTe solution. Sorry
Carlos Bodra
IBM zEnterprise Certified
São Paulo – SP – Brazil
-----Mensagem original-----
De: IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU> Em nome de Peter
Enviada em: segunda-feira, 27 de janeiro de 2025 01:37
Para: IBM-MAIN@LISTSERV.UA.EDU
Assunto: Re: Mainframe physical tape backup
Hello Carlos
Right we use DLM8500 and Data Domain to backup the mainframe data.
Is it possible to send mainframe data to LT0 drives from Dell backup solutions?
Has anyone tried or you have working solutions already?
On Fri, 24 Jan 2025, 22:23 Bodra - Pessoal, <
000002eda2bc565a-dmarc-requ...@listserv.ua.edu> wrote:
> Peter,
>
> IBM TS4500 won´t attach to any Z systems. It can have a lot of TS1170
> (aka
> 3592-EH8) inside, but just for TS7770/80 data destage from Hydra. IBM
> stopped to produce tape controller with 3592-C07 some years ago. Since
> this, mainframe data is available in physical cartridge passthru TS7770/80.
> This was a marketing/sales orientation to force customers to buy tapes
> (TS4500 and Tape drives (3592-EH8) and storage (TS7770/80) if you want
> data stored in tape cartridge.
>
> Since we use Luminex MVTe solution, we mapped disk storage (via FC) to
> our backup server and uses LTO7 to backup array, then sent to offsite storage.
> Data inside array is compressed and eventually cryptographed (optional
> feature), not usable directly by mainframe since we need to restore
> array to access data via Luminex MVTe. This is a solution for a
> catastrophic event in Data Center.
>
> Maybe this can work for you.
>
>
> Carlos Bodra
> IBM zEnterprise Certified
> São Paulo – SP – Brazil
>
>
> -----Mensagem original-----
> De: IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU> Em nome
> de Peter Enviada em: sexta-feira, 24 de janeiro de 2025 12:41
> Para: IBM-MAIN@LISTSERV.UA.EDU
> Assunto: Mainframe physical tape backup
>
> Hello
>
> My organization has asked me to explore about the vendors who are
> still providing external physical tape backup.
>
> How many companies are there who are making physical tape Solutions
> and I would like to discuss with them.
>
> Any pointers would be appreciated.
>
> Regards
> Peter
>
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