This is not unique to Tandem. It's a function of "front end switches".
It's just that Tandem is the traditional platform of choice for this
function. It's hard to convince banks to change from a long standing
solution. However, new installations are adopting other alternatives.
As I said before, it's not to cover for unavailability of the IBM platform.
Rather, it's to stand-in for the unavailability of the "back end application",
regardless of what platform it's running on.
> Date: Thu, 26 Jun 2008 09:01:11 -0500
> From: [EMAIL PROTECTED]
> Subject: Re: We're losing the battle
> To: [email protected]
>
> I currently work for a bank the uses a Tandem for wire transfer
> processing, not as an ATM front end. In a previous life I worked for a
> bank that used the Tandem for both of those functions. One thing with
> the ATMs is the penalties that are charged by the companies that do the
> interbank communications. When one of your banking customers uses their
> card in another bank's ATM then companies like Interlink and PLUS get
> involved to check their account at your bank and validate balances, etc.
> If you're down for even a little while and they can't make that check
> then you can get hit with some horrendous penalty charges. At my
> previous employer there was a negative file in the Tandem. If the
> mainframe was out of service for something like an IPL or IML, then the
> Tandem would check the negative file. If the account was in that it was
> a no go on the transaction. Otherwise there would be a set minimum
> amount the customer could withdraw. That way, as far as Interlink or
> PLUS were concerned, we were up and running.
>
>
>
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