Beneficial Use of GDPS Copy Once Facility (Experimental Evidence)
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.
Performance Modeling for Disk Storage Systems
This blog demonstrates how computer system performance modeling is done, specifically for disk storage systems.
HDS Pools Hit the Target in RMF for Hitachi Dynamic Tiering
HDS created their Hitachi Dynamic Provisioning (HDP) pools which greatly increase your ability to get insight in the back-end and autotiering workload for the VSP.
z/OS Petabyte Capacity Enablement
The purpose of this blog is to discuss the strategies of how to position existing and future technologies to allow for this required growth.
Does everybody know what time it is? Tool Time!
For managing your z/OS Disk performance, IntelliMagic Vision easily outperforms IBM Tivoli Storage Productivity Center for Disk (TPC).
IBM TS7700 Replication – Is Your Data Safe? (Part 2 of 2)
This blog explores how IntelliMagic Vision can be used to monitor the health of the TS7700 replication process.
Does your Disaster Recovery Plan Meet its Objectives? Analyzing TS7700 Tape Replication (Part 1 of 2)
This blog is the first in a series of two blogs on the topic of Mainframe Virtual Tape Replication.
IBM TS7700 Performance – What to do if your Cache Hit Percent drops too low?
IntelliMagic Vision can help us look at various aspects of the TS7700 to determine what actions (if any) need to be taken.
nil sub sole novum – Vision 7 Support for IBM APAR OA39993
IntelliMagic Vision provides support for tracking Interrupt Delay Time which is a timely addition to sub-millisecond response time reporting.
Less is More – Why 32 HyperPAVs are Better than 128
This blog discusses why you should base the number of aliases on the number of I/Os being processed concurrently on a channel set.
What HDS VSP and HP XP P9500 Should Be Reporting in RMF/SMF – But Aren’t
This post is about the Hitachi high-end storage array that is sold by HDS as the VSP and by HP as the XP P9500.
What EMC VMAX Should Be Reporting in RMF/SMF – But Isn’t
This is the third in a series of four blogs on the status of RMF as a storage performance monitoring tool. This one is specifically about EMC VMAX.