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DASD usage Cost


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prasun dhara

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Joined: 01 Mar 2008
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Location: kolkata

PostPosted: Wed Feb 01, 2012 12:30 pm
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Hi ,

We know that MIPS is related to the cost which every site has to pay to IBM.

Is there any similar cost for DASD ? If yes can anyone please give one example how cost is related to DASD Usage?

I know this things are site specific but one example of any site would be sufficient for my understanding.

Thanks
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prasun dhara

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PostPosted: Wed Feb 01, 2012 12:57 pm
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update :
Many user has many unused datasets present with 3 different status

1) VOLSER
2) MIGRATE1
3) MIGRATE2

Removing unnecessary item will save any cost directly?
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vasanthz

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Joined: 28 Aug 2007
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Location: Tirupur, India

PostPosted: Wed Feb 01, 2012 2:04 pm
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Quote:
which every site has to pay to IBM.

There are also other companies other than IBM which own a IBM mainframe and lease it to clients.

Quote:
Is there any similar cost for DASD ?

Most certainly YES, if your company leases the hardware from some other vendor.

Cost for DASD depends on the contract which your organization has signed with the hardware vendor.
Quote:
Removing unnecessary item will save any cost directly?

It again depends on the contract. Some vendors may have a flat charge for DASD usage no matter how much you actually use.
Sometime it maybe based on the total number of online DASD volumes.
Sometime it maybe based on the actual space used by you.

If it is 'unnecessary' remove it, definitely good even if money is not saved.
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vasanthz

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PostPosted: Wed Feb 01, 2012 2:19 pm
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your storage management team also might know how your usage is billed.
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enrico-sorichetti

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Joined: 14 Mar 2007
Posts: 10872
Location: italy

PostPosted: Wed Feb 01, 2012 2:30 pm
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Quote:
We know that MIPS is related to the cost which every site has to pay to IBM.


I dare to say that You are the only one who knows about that ... icon_cool.gif

also from what point of view are You looking at the thing ...

owner of the equipment

user of the equipment

for DASD for example the owner buys it from whatever provide it chooses

then depending on the company mission and internal accounting rules
it might bill the users ( real or virtual billing ) according to the space used or just track the utilization


looks like You are oversimplifying things
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expat

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PostPosted: Wed Feb 01, 2012 2:57 pm
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I've always found that billing is an internal thing, totally site specific.

Are you talking how much does DASD cost to buy / hire, or how much chargeback there is per Mb usage

Either way, only your site will know the answers
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Robert Sample

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Joined: 06 Jun 2008
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Location: Dubuque, Iowa, USA

PostPosted: Wed Feb 01, 2012 5:43 pm
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prasun dhara, exactly what is it you think you are trying to understand? Your very first statement, for example, is wrong. MIPS is an obsolete term that IBM replaced with MSU many years ago. Furthermore, cost of a given size machine (fixed MSU) varies depending upon which generation of hardware you're talking about -- IBM tends to drop the cost of a given MSU number when it rolls out new hardware. IBM, just like the other DASD vendors, charges for their disk subsystems. The amount paid depends upon many factors -- buying a 1-terabyte DASD subsystem, for example, will cost a lot less than buying a 100-terabyte subsystem.

And if you're talking about internal chargeback, then you need to just forget you ever asked the question. Internal chargeback schemes range from very complicated to non-existent (some sites treat the entire mainframe cost as overhead and don't charge back its cost at all). So your question (if about chargeback) would only make sense if you are talking about an individual site, and it would make absolutely no sense to post such a site-specific question on a forum like this.
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