Db2 vs. IBM WebSphere Hybrid Edition

I have primarily used it as the basis for a SIS - but I have migrated more than a few systems from there database systems to DB2 (Filemaker, MySQL, etc.). DB2 does have a better structural approach, as opposed to Filemaker, which allows for more data consistency, but this can also lead to an inflexibility that can sometimes be counterintuitive when attempting to compensate for the flexibility of the work environment as Schools tend to have an all in one approach.

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IBM WebSphere Hybrid edition is well-suited for the development and deployment of large enterprise-level applications such as Electronic Health Records that are used in our organization. IBM WebSphere is appropriate for organizations that require strong security and compliance as it provides a high level of security and compliance features. This works well with organizations that are subject to strict regulatory requirements, such as hospitals.

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• While we query a large set of data, the results are generally available within a minute or so.
• Always reliable - I have never experienced an application going down.
• It is easy to write queries and find tables and columns.
• We can log in smoothly without any headaches.

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• IBM WebSphere Hybrid Edition has done marvelous in building and deploying Java Enterprise applications.
• It also does well in automating deployment and scaling. This has made it easier for our organization to deploy updates to our applications.
• IBM WebSphere Hybrid Edition does well in security by providing features that protect enterprise applications.

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• Learning curve for DB resources - Improvements to UI or native command line built-ins can help with increasing efficiencies for DB resources
• Better resource utilization monitoring and recommendations
• Continue to adopt support for modern frameworks and languages making it easier for organizations to see making Db2 the easy first choice

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• Ease of use in terms of deployment, give simple interface to do simple stuff like Tomcat, JBoss or GlassFish.
• Takes long time to start the server.
• The Liferay wars need to be decorated and then deployed. Perhaps we could simplify that.
• Some of the concepts are good for complexity that WAS can handle but could be simplified and better documented, like concepts of well and profile, context, etc.
• A Liferay war file created using Liferay Developer studio runs fine in Tomcat, however that may not run in WAS 7.x because it needs to be decorated. I had one war for a Liferay portlet with a simple cron job, and had hard time running to WAS server. It was running on the latest free download done on my friends m/c. Other times I have seen that there are issues running a war file that runs on Tomcat but runs on WAS after lot of customization for WAS.
• The corporations like this however, the product may need better vibrant community of users where issues can be discussed.

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The DB2 database is a solid option for our school. We have been on this journey now for 3-4 years so we are still adapting to what it can do. We will renew our use of DB2 because we don’t see. Major need to change. Also, changing a main database in a school environment is a major project, so we’ll avoid that if possible.

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Mostly we will be renewing unless the strategic direction changes drastically or there are other complelling external circumstances. We've been on a multi year project to modernize our legacy applications and that effort will continue for the foreseeable future.

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You have to be well versed in using the technology, not only from a GUI interface but from a command line interface to successfully use this software to its fullest.

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WebSphere Application Server is used across our organization. Most projects use this for Java products and applications. Being robust and scalable makes it even more usable. We love using WebSphere Application Server due to its configuration management ability made simple and vast across all java related parameters. It is dependent on the features and upgrades and IBM releases some great upgrades to WebSphere Application Server.

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I have never had DB2 go down unexpectedly. It just works solidly every day. When I look at the logs, sometimes DB2 has figured out there was a need to build an index. Instead of waiting for me to do it, the database automatically created the index for me. At my current company, we have had zero issues for the past 8 years. We have upgrade the server 3 times and upgraded the OS each time and the only thing we saw was that DB2 got better and faster. It is simply amazing.

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The performances are exceptional if you take care to maintain the database. It is a very powerful tool and at the same time very easy to use. In our installation, we expect a DB machine on the mainframe with access to the database through ODBC connectors directly from branch servers, with fabulous end users experience.

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Deploys fairly quick enough and like the roll-out update feature decreasing the downtime and also plays well with other integration tools as well.

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Easily the best product support team. :) Whenever we have questions, they have answered those in a timely manner and we like how they go above and beyond to help.

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IBM was quick to respond when we had an issue with our specific infrastructure. We raised a PMR, which they picked up quickly and updated us about every step of the way. We had an appropriate fix for quite a business critical issue within a fortnight, which was impressive!

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the material was very clear and all subjects have been handled

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db2 work well with the application, also the replication tool can keep it up

DB2 was more scalable and easily configurable than other products we evaluated and short listed in terms of functionality and pricing. IBM also had a good demo on premise and provided us a sandbox experience to test out and play with the product and DB2 at that time came out better than other similar products.

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Cleo Integration Clould has many bells and whistles; however, when we added more maps and trading partners, it really slowed down. We found that the Cleo support was very slow to respond and there was a language barrier. IBM Websphere had better customer support and its processing was much faster than Cleo Integration Cloud

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By
using DB2 only to support my IzPCA activities, my knowledge here
is somewhat limited.

Anyway,
from what I was able to understand, DB2 is extremely scallable.

Maybe the information below could serve as an example of scalability.

Customer have an huge mainframe environment, 13x z15 CECs, around
80 LPARs, and maybe more than 50 Sysplexes (I am not totally sure about this
last figure...)

Today
we have 7 IzPCA
databases, each one in a distinct Syplex.

Plans
are underway to have, at the end, an small LPAR, with only one DB2 sub-system,
and with only one database, then transmit the data from a lot of other LPARs,
and then process all the data in this only one database.

The
IzPCA collect process (read the data received, manipulate it, and insert rows
in the tables) today is a huge process, demanding many elapsed
hours, and lots of CPU.

Almost
100% of the tables are PBR type, insert jobs run in parallel, but in 4 of the 7
database, it is a really a huge and long process.

Combining
the INSERTs loads from the 7 databases in only one will be impossible.......,,,,

But,
IzPCA recently introduced a new feature, called "Continuous
Collector".

By
using that feature, small amounts of data will be transmited to the central
LPAR at every 5 minutes (or even less), processed immediately,in
a short period of time, and with small use of CPU,
instead of one or two transmissions by day, of very large amounts of data and
the corresponding collect jobs occurring only once or twice a day, with long
elapsed times, and huge comsumption of CPU

I
suspect the total CPU seconds consumed will be more or less the same in
both cases, but in the new method it will occur in small bursts
many times a day!!

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• Negative: Difficult and manual deployment
• Negative: Missing assistants from common monitoring metrics
• Positive: Stability
• Positive: Performance
• Positive: Resiliency and high availability (HADR)
• Positive: Data Replication (Q-Rep)
• Positive: Interaction with storage subsystems for backups (TSM, SVC)
• Positive: Gigantic monitoring features in the form of table functions

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• Continuous uptime of the business applications we manage
• It's now much simpler for me to build and deploy cloud-native applications.
• Because it can offload for me management and maintenance of the application server to IBM I can focus on the development, deployment and testing of the applications which is more important

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