Reviews (1-23 of 23)
- Transactional processing, including data entry across multiple departments
- Reporting on massive amounts of data, due to its scale and size of processing capabilities
- Analytics on data as there are various accelerators for both IBM's databases and others such as Oracle
- Security is another major benefit to this platform as it contains a non-open systems design
- It would be good if IBM could demonstrate more use cases for Z to potential clients
- A migration strategy from Open Systems to Z would be helpful
- Any additional marketing to could explain the benefits of Z/Linux, especially now that RedHat is in the mix.
- Reliable - We have an SLA with our customers of 99% availability
- Scalable - IBM Z is the most scalable processors available. In January we had an unanticate 45% CICS transaction growth with on demand availablity we were quickly able to deal with this growth.
- Data Sharing and SYSPlex across LPARS with DB2 and IMS accommodates multiple jobs requiring simultaneous access and updates
- Improvements in CICS CPSM usability
- Reduce the cost - it is a very expensive platform with costs that are very easy see
- App dev improvements it is very difficult to implement lean processes on the platform
- Transaction processing. Nothing better than DB2 and Information Management System (IMS).
- The best security in the business world.
- Best place to store data for retrieval.
- More GUI interfaces into z/OS.
- IBM Z is highly available. We aren't fully making use of the parallel sysplex features of IBM Z yet, but future state, the availability it provides will be crucial.
- Provides timely and stable maintenance. We rarely experience severe bugs after applying maintenance to our systems.
- Documentation is easy to find.
- It would be nice to have more scripting and coding languages readily available to use on IBM Z. There are some options available, but our company doesn't utilize them yet.
- High availability with no downtime.
- Concurrent software and firmware.
- Performance to support millions of transactions a day.
- Overall hardware Cost is expensive.
- Overall software cost is expensive.
- Personnel with Z technical skills are hard to acquire.
- The processing power and speed that Z provides is unparalleled.
- The security of the data that resides on Z is unlike any other system.
- For application developers, Z can sometimes be hard to understand, especially for younger users.
- I'd like to see some type of built in support function for some of the products
These operating systems support critical applications and infrastructure to support front line business needs such as Claims Processing, Web Applications, DB2, CICS Transactions, and IMS Databases.
- IBM Z Technology supports the critical Infrastructure needed for reliable Data Centers to support business needs.
- IBM Z Mainframe Technology is used worldwide for the amount of MIPS (Millions of Instructions Per Second) and processing power/data handled by this equipment.
- IBM Z Storage is Infrastructure that supports large amounts of critical data. (Direct Access Storage Devices, Virtual Tape Subsystems, and Physical back-end Tape)
- More access methods from a Management GUI Interface to help support on-site IBM SSR's perform job duties. IBM SSR's log into one or more IBM TSSC's (Management Interface for IBM personnel) to support Support Infrastructure needs such as: enabling AOS, offline of a back-end TS11** tape drive or Downloading VTD Exec's which could be critical fixes released from support seen in the field.
- More detailed/extensive lab testing before Ficon Host Adapters or ETH cards are released to new equipment sold in the field. We experienced multiple disruptive "Ficon Panics" within the recently purchased TS7760 Technology that had 16Gb Ficon cards behind a z14 mainframe with 16Gb Ficon cards. This turned out to be the following: shortage of data descriptors, block sizing, related to EEH or CAD code and we had an IBM TS7700 Architect come on-site and explain that a fix was made in the 8Gb Ficon cards that wasn't brought over into the 16GB Ficon cards. We've had to remove twenty 16Gb Ficon cards from seven TS7760's in our environment and replace with 8Gb Ficon cards until IBM Development release's VTD Exec's and CMVC fixes before another implementation plan.
- The system is very scalable
- The system is very reliable
- The system has great I/O capacity
- The system is hard to learn, especially the TPF Operating system
- It has a history of being old technology
- Not attractive to young developers
When you need to perform billions of transactions per second running numerous address spaces queuing millions of lines of output, managing all of the internal and external resources needed to process complicated programs using, many languages and compilers
Not Well Suited:
GUI presentations but it's getting better.
The mainframes I have worked on are typically used across the whole organization to address the enterprise business needs of the organization. They run multiple applications for multiple business lines.
- Security is a specific strength of the Z platform. The IBM z14 provides Pervasive Encryption, making the platform one of the most secure hardware offerings available. Specialized cryptographic hardware is utilized to encrypt data and protect encryption keys, enabled through integration with a tamper-responding cryptographic HSM. The IBM z14 pervasively protects all application and database data, without interrupting business applications and operations, all the time, at any scale. True end-to-end data protection is provided for all in-flight network data and APIs. Imagine being able to protect all your data and applications without requiring IT or programmer action. With the z14 this becomes reality instead of imagination.
- IBM offers flexible pricing options to make it easier for customers to affordably adopt and utilize the Z enterprise servers for any type of workload that needs to be run. For example, with Container Pricing, customers can identify workload to containers and pay for them independently of any other workload at a reduced price. Container Pricing is an important breakthrough for mainframe customers because it offers competitive economics versus alternative platforms such as public clouds and on-premises x86 servers.
- The IBM z14 delivers high-end processing power and enhanced I/O capabilities. The latest model, the z14, offers increases in the performance of the individual PUs (processor units), increases in the number of PUs per system, a redesigned system cache, and an increase in the amount of memory possible.
- The system is capable of running more than 12 billion encrypted transactions per day on a single system. And the IBM z14 delivers industry leading scale to meet the needs of modern connected workloads. It can run a million Docker containers on single platform.
- The mainframe and z/OS have a long history of providing critical business value with transaction processing systems like CICS and IMS. And the transactions processed by these systems are often backed by DB2 and IMS databases. The applications and databases hosted on mainframe systems provide a rich tapestry of useful information that mobile users want to access.
- And mobile devices can connect to the System z platform consistently and effectively. With z/OS Connect the mainframe can use a single interface on z/OS that accepts standard mobile protocols and formats that can interact with multiple systems on the mainframe.
- The Z platform provides a superior platform for analytics & machine learning for continuous intelligence across the enterprise. The Machine Learning on Z platform, delivered in 2017, offers an agile machine learning solution that enables customers to convert enterprise data into opportunity. With machine learning on an IBM z14 you can optimize your decision processes by quickly training, deploying and continuously monitoring a high volume of high quality predictive behavioral models. The IBM z14 can also rapidly analyze large volumes of data with consistent response times by exploiting the additional memory and faster processors of the z14.
- Modern development techniqes and languages can be used, in addition to legacy systems. And Linux can be run on enterprise Z servers just as easily as z/OS.
- And the platform excels at traditional, transactional workloads, both online and in batch, using database systems, flat files, or VSAM.
- IBM needs to add more focus on simplifying mainframe usage and management.
- Most modern programmers interface with the Z using an IDE. However, performing many tasks, such as cataloging a data set or checking on a job status, can require switching to the ISPF interface. Users want to interface with a GUI, not a function-key, menu and character-based interface like ISPF. Anything that can simplify and modernize interfacing with the mainframe should be a high priority for IBM.
- The IBM Z platform is one of the most instrumented computing platforms in the world, so there are a lot of metrics that could be automatically analyzed and used to improve the performance and management of the mainframe environment.
Its higher initial cost may make it unsuitable for smaller organizations without an IT infrastructure to manage it.
- Server Consolidation
- For IBM to be more open to open source.
- Needs better education for zOS, zVM and other legacy technologies.
- More completive pricing for customers using open technologies.
- They are very fast, contrary to popular belief
- They are precise - require an exact input to get the correct output
- Increasing the ease of extracting data from the TPF system, to benefit external applications
- Increasing the ease of test case automation
- Security. TLS can be easily deployed to new applications via the Configuration Assistant.
- High Workload. We typically have tens of thousands of users logged in at a time, and this is not a problem at all.
- High Availability. With DDVIPA, we are able to utilize multiple LPARs to access the same underlying applications, even if a particular LPAR is unavailable.
- Complexity. Many needs are common (telnet, FTP, etc). It would be nice if those were simpler to deploy.
- User interface. Green screens aren’t interesting to younger programmers.
- Built-in fault finding heuristics would be nice. It is difficult to see problems through the noise.
IBM Z Scorecard Summary
About IBM Z
IBM promises the following benefits with its Z Enterprise servers:
Build an impenetrable wall against attacks and simplify compliance. z14 encryption runs 18.4x faster at 1/20 the cost of alternatives.
IBM Secure Service Container
This tamper-proof container technology is orchestrated with Kubernetes and is key to a DevSecOps strategy.
New consumption pricing lets you pay as you go when deploying new applications on the z/OS platform.
IBM Z Competitors
IBM Z Technical Details