SAP HANA: Not The Only In-Memory Game In Town - InformationWeek

InformationWeek is part of the Informa Tech Division of Informa PLC

This site is operated by a business or businesses owned by Informa PLC and all copyright resides with them.Informa PLC's registered office is 5 Howick Place, London SW1P 1WG. Registered in England and Wales. Number 8860726.

SAP HANA: Not The Only In-Memory Game In Town
Newest First  |  Oldest First  |  Threaded View
User Rank: Apprentice
10/14/2015 | 11:22:20 AM
Reliability of In-Memory is key to successful implementations
While there are great performance gains in using in-memory databases, there is a significant requirement of reliable power availability. Most of the planet does not have better than 95% power availability, and a single power outage can wipe your entire database out. Not only does the power need to be ON all the time, it also must not vary more than a given amount. A recovery from backup often results in lost transactions. So, before any in-memory database implementations take place, it is key to allocate large Power battery backup's that can shield your servers from a power loss or at least dump the database to disk drives and shut down the servers amicably. Large server farms often make use of solar and fuel based power generators backed up by huge battery banks. These add significant costs to such implementations.
Blog Voyage
Blog Voyage,
User Rank: Strategist
7/6/2015 | 2:41:51 AM
Re: In-memory database started with TPF
Thanks for the precision mates !
Curt Franklin
Curt Franklin,
User Rank: Strategist
6/4/2015 | 2:07:27 PM
Re: In-memory database started with TPF
@Charlie, you're right -- "in-memory computing" is, like so much of today's enterprise computing, built on a mainframe foundation. There are a couple of big differences, though: One is the sheer size of the databases involved. The other is that, as you point out, in the 70s the in-memory architecture was all about supporting transaction speed. Today, it's as much about analytics as transactions, and that's a pretty big deal.
Charlie Babcock
Charlie Babcock,
User Rank: Author
5/28/2015 | 6:08:11 PM
In-memory database started with TPF
The original high speed, in-memory system is not a recent phenomenon but IBM's Transaction Processing Facility, or TPF, used in the first airline reservation systems to speed response times to customers. It was first fired up in 1979, or before the birth of some of today's NoSQL experts. 

The State of Cloud Computing - Fall 2020
The State of Cloud Computing - Fall 2020
Download this report to compare how cloud usage and spending patterns have changed in 2020, and how respondents think they'll evolve over the next two years.
2021 Outlook: Tackling Cloud Transformation Choices
Joao-Pierre S. Ruth, Senior Writer,  1/4/2021
Enterprise IT Leaders Face Two Paths to AI
Jessica Davis, Senior Editor, Enterprise Apps,  12/23/2020
10 IT Trends to Watch for in 2021
Cynthia Harvey, Freelance Journalist, InformationWeek,  12/22/2020
Register for InformationWeek Newsletters
Current Issue
2021 Top Enterprise IT Trends
We've identified the key trends that are poised to impact the IT landscape in 2021. Find out why they're important and how they will affect you.
White Papers
Twitter Feed
Sponsored Live Streaming Video
Everything You've Been Told About Mobility Is Wrong
Attend this video symposium with Sean Wisdom, Global Director of Mobility Solutions, and learn about how you can harness powerful new products to mobilize your business potential.
Sponsored Video
Flash Poll