Thanks Jerry, that helps.
Jerry Whitteridge wrote:
Tom - Think of the DLM as the head of string Tape controller (from the old
days) that provides the UCB's. Then there is some form of Storage attached
(think the physical tape that got mounted) - in our case this is a DD4500 as
an example. EMC allows only certain Storage to attach to the DLM.
Jerry Whitteridge
Manager Mainframe Systems & Storage
Albertsons - Safeway Inc.
623 869 5523
Corporate Tieline - 85523
If you feel in control
you just aren't going fast enough.
-----Original Message-----
From: IBM Mainframe Discussion List [mailto:[email protected]] On Behalf
Of Lizette Koehler
Sent: Friday, July 21, 2017 4:37 AM
To: [email protected]
Subject: EXTERNAL: Re: Backing up EMC DLM
Tom
I may be wrong, but the DLm is more like a database for the tapes. There is no
storage on it. The needs to be another piece of equipment to provide the
storage for the actual tape usage.
I think you are asking can you use a storage device other than EMC equipment to
hold the actual tape data.
Is that correct?
If so, I have not seen any documentation that would indicate anything other
than EMC equipment can be used for the DLm for their actual tape data.
This link does not show anything other than EMC equipment. Currently, VMAX,
VNX, DD are the only devices I have seen that works with the DLm.
https://www.emc.com/collateral/hardware/data-sheet/h4207-disk-library-mainframe-
ds.pdf
So, you are probably trying to see if anyone used something other than EMC
equipment with the DLm and was successful.
Lizette
-----Original Message-----
From: IBM Mainframe Discussion List [mailto:[email protected]]
On Behalf Of Tom Brennan
Sent: Thursday, July 20, 2017 7:27 PM
To: [email protected]
Subject: Backing up EMC DLM
Is anyone using a Quantum (quantum.com) device to back up data from an
EMC DLM? (Disk Library for Mainframe - looks like tape to the
mainframe)
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