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Memory Measurements Complexities and Considerations - Part 1

Memory Measurements Complexities and Considerations Part 1: Buffers and (File Page) Cache System caches use all available memory to optimize disk IO. Knowing which memory metrics count this usage in their stat is therefore crucial to proper memory analysis. ...


Blog Entry
MQ for zOS - MFT update and debugging the inconsistencies!

Yes – the recently issued report , available here: “ IBM MQ for z/OS – Managed File Transfer Performance ” has already received a minor refresh! What’s new? The main reason for the minor refresh is that the difference in performance for text file transfers from Unix System Service files was...

Anthony Sharkey's profile image

Blog Entry
MQ for z/OS - performance report for MFT

Almost too many years ago to remember, I created the "WebSphere MQ File Transfer Edition Performance report", also known as FP11. The FP11 report provided information on the cost of managed file transfer when the source and/or destination transfer agents were hosted on z/OS, as well as...

Anthony Sharkey's profile image

Blog Entry
Lessons from the field #1: A free Troubleshooting and Performance Lab

This is the first post in a new blog series by the IBM App Platform SWAT team. Our team engages worldwide in critical situations for IBM WebSphere Application Server (WAS) (traditional and Liberty) with deep expertise in WAS, Java, operating systems, networking and other technologies to drive...

Kevin Grigorenko's profile image


Blog Entry
Video Surveillance - Choosing the right storage

When it comes to video surveillance workload , you ought to get the backend storage right. The storage should be performance savvy, scalable, should support to run analytics and also should support tiering to ensure when data ages it moves to economical viable tiers. Spectrum Scale as well as...

SANDEEP PATIL's profile image

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Video Surveillance - Ensuring right storage at the backend.

When it comes to video surveillance workload , you ought to get the backend storage right. The storage should be performance savvy, scalable, should support to run analytics and also should support tiering to ensure when data ages it moves to economical viable tiers. Spectrum Scale as well as...

SANDEEP PATIL's profile image

Blog Entry
Monitoring Spectrum Scale Object metrics

As you know "mmperfmon" command (with query option) in IBM Spectrum Scale is used to view metrics associated with GPFS and the protocols. In this post, I will share details on how to monitor object protocol (account, container, object) metrics (GET/PUT/POST/DELETE) using mmperfmon command. In...

Archive User's profile image

Blog Entry
Design FEEDERS to maximize performance for your #TM1 Model

What are FEEDERS? FEEDERS are used by the IBM TM1 calculation engine to assist with handling sparsity in cubes with SKIPCHECK enabled. Some cubes may have rule calculations but be extremely small or dense and may not need SKIPCHECK. FEEDERS identify the cells in a cube that may contain a rule...

CHARLIE LE's profile image

Blog Entry
How does one optimize the storage layer for good metadata IO performance in IBM Spectrum Scale?

This article attempts to address this question when customers or solution architects have option of storing the file metadata on the same storage as data or on separate storage. Yes, IBM Spectrum Scale provides you a way to store metadata and data on separate disks where metadata disks can only...

Archive User's profile image