HSBC is one poorly run bank. Since 2000 to today the stock has been cut in 
half. 60 to 30. So, I wouldn’t be touting their decision making. Also, the AWS 
signing was so they could layoff thousands of employees. A move that wreaks of 
desperation.


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On Friday, October 22, 2021, 9:39 PM, David Crayford <[email protected]> 
wrote:

On 23/10/2021 9:04 am, Bill Johnson wrote:
> No bank needs AWS to process millions of transactions an hour. Every major 
> bank does it on the mainframe without the outages AWS injects into the 
> process.

Well, obviously HSBC do and they're the 6th biggest bank in the world. 
AWS offers 99.999% uptime SLAs so if HSBC suffered an outage it's going 
to be expensive for Amazon.

Talking about outages a few years ago my bank suffered a catastrophic 
outage when a batch job was incorrectly restarted from the wrong step. 
Wages and pensions were not processed. RBS had a CA7 maintenance error 
which caused weeks of chaos which was blamed on lack of skills after 
outsourcing their operations to Hyberbad. They were find £57M by the UK 
government. Air New Zealand suffered a catastrophic mainframe failure 
caused by the incompetence of IBM global services carrying out a DR 
test. Customers couldn't board their planes. It doesn't matter how solid 
your IT platforms are when humans can make errors.


>
>
> Sent from Yahoo Mail for iPhone
>
>
> On Friday, October 22, 2021, 7:38 PM, David Crayford <[email protected]> 
> wrote:
>
> Haha, you don't give up. How about this. HSBC has nearly $3T dollars in
> assets. They have integrated their mainframe with Amazons AWS cloud.
> You've been pwned man, take a breather.
>
> "For large financial institutions, it can be extremely hard to predict
> when your architecture may need to scale to process millions of
> financial transactions per day. HSBC addressed this challenge by
> integrating its on-premises mainframe with AWS services such as AWS
> Lambda, Amazon Kinesis, and Amazon DynamoDB."
>
> https://www.slideshare.net/AmazonWebServices/how-hsbc-uses-serverless-to-process-millions-of-transactions-in-real-time-fsv305-aws-reinvent-2018
>
>
> On 22/10/2021 7:51 pm, Bill Johnson wrote:
>> Australia’s largest bank is Commonwealth Bank of Australia with a little 
>> over 1 trillion in assets in Aussie dollars. ANZ banking group #2 at 
>> slightly over a trillion in assets. Wetpac banking 3rd at around 900 billion 
>> in assets. Which doesn’t put any of them in the top 20. The 20th bank in the 
>> real top 20 is Group BPCE of France at approx 1.5 trillion. These numbers 
>> are as of October 10th, 2021.
>>
>> Millions of transactions a day is comical. Millions per hour is what many 
>> banks process. 1 billion credit card transactions happen daily. Just credit 
>> cards.
>>
>> I look forward to seeing your proof of an Aussie bank in the top 20.
>>
>>
>>
>> The link I provided was Australia's largest (and a world top 20) bank
>> with millions of transactions a day. They're not stupid, production
>> technology choices are critical which is probably why IBM have spent $$
>> making sure Kafka runs ok on z/OS.
>>
>> Caching isn't a new idea. It's a common CICS design pattern using TS so
>> you don't have to make an expensive call to DB2 or IMS. The customer
>> solution is not call the mainframe for read transactions. It's not
>> uncommon, it starting to become pervasive. Writes are a different matter.
>>
>>
>>> However the management was not happy because of that, just because
>>> they want to switch the mainframe off.  Nevermind, the new transaction
>>> system has response times 35-140ms (compared to 4-5ms on mainframe).
>>>
>>>
>>>
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