First full disclosure I work for Dell Technologies but more
specifically in the DLm group, now with that out of the way.
Probably more than 50% of the DLm customers do share their backend
(Data Domain) storage with the distributed world and or the IBM-I world. What
this means is we have experiences in sizing these types of solutions. When we
perform this sizing, we will do a study on the mainframe the distributed side
and the IBM I if required. We then make sure that the performance
characteristics of the back end storage array is capable of handling the peak
workload without issue. From the DLm point of view this is the connection to
the mainframe and we size the performance requirements based on the supplied
RMF data .
I can provide much more detail if you like just not sure if it is
appropriate to do so on list. Below is my non work email, but most could
probably figure out my work email.
Final answer this is a common for DLm systems and works great the key
is proper sizing which my group handles.
Carl Swanson
Mobile:215.688.1459
Email: [email protected]
-----Original Message-----
From: IBM Mainframe Discussion List <[email protected]> On Behalf Of
Jake Anderson
Sent: Thursday, March 4, 2021 1:16 AM
To: [email protected]
Subject: EMC DLM over IBM VTL
Hello
We are analysing if EMC DLM would be a right fit to replace IBM VTL.
I am trying to understand about backup cycles using EMC DLM when we use single
backup solution and single virtual tape library to backup both mainframe and
open systems.
Is there a possibility for contention ?
Will there be a impact to mainframe backup when there is a high backup volume
for open system ?
These performance do effect the open system as well ?
Trying to understand these from the DLM users ? Any feedback would be
appreciated
Jake.
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