Joe Hyde joined IntelliMagic as a senior consultant after 32 years in high-end disk performance. He has extensive mainframe experience with I/O intensive applications, channels and IBM storage, as well as working knowledge of EMC and HDS disk storage offerings. Joe also has deep knowledge of RMF and GTF in both data reduction and analysis, and is an expert in disk storage performance design (hardware, firmware, advanced function), holding more than 20 patents in this area. With many successful worldwide customer engagements in disk I/O problem-solving and optimization, he also has 12-plus years of experience with Unix and IBM i-based applications sensitive to disk I/O performance.
Resources created by Joe Hyde
zHyperLink Read Performance & Lessons Learned | IntelliMagic zAcademy
Watch Joe Hyde as he shares recent Db2 production data which highlights the speed of zHyperLink read I/Os and other lessons learned.
High IOSQ Time in Mainframe IO Subsystem Leads to Credit Card Transaction Timeouts for Major Bank
A global bank was struggling because their latest version of a credit card swipe application was failing at high volume load testing. Our experts took a deep dive to discover the root cause.
How’s Your Flash Doing?
Since most storage management algorithms optimize their enterprise storage automatically, you may not have the time or tools to quantify how your Flash is performing.
IBM z/OS’s Microscope – GTF
With a GTF I/O summary trace, what appears innocuous at the RMF level can have some surprising characteristics when put under the GTF microscope.
Pend Time Haiku
The I/O infrastructure for IBM z Systems is second to none in the enterprise space, including the detailed metrics delineating where time is spent in I/O processing.
Eliminating Data Set Contention
This blog discusses how disk storage systems exhibiting excess device busy delay times can be resolved.