Resources

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.

Unused software, or shelfware, is a pervasive problem in enterprise IT as it doesn't take other factors like personnel, processes, and skills into account.

Disk storage systems provide hundreds of performance-related metrics but in order to identify which of the metrics are key, one first needs to know what exactly the metric represents.

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.

While most mainframe shops have explored how to reduce mainframe software costs, we are finding significant latent savings opportunities still exist at even the best run sites.

A Copy Once Facility is not expensive to implement or maintain and can save up to 50% of the bandwidth that would be required if it wasn’t available.

This blog provides you with further options when distributing workloads across the available resources and dedicating replication traffic to specific ports.

This blog discusses how disk storage systems exhibiting excess device busy delay times can be resolved.