Sample Results
With IntelliMagic Direction you can easily assess the impact of workload or hardware changes and quickly generate dozens of charts for presentation of findings to management or technical audiences. The following samples represent just a few of the options available within IntelliMagic Direction:
Evaluate Impact of Increased Workload
With IntelliMagic Direction you can accurately predict the I/O service times and utilizations for a new or existing configuration, based on either a description of your workload or measurements from an existing configuration. The following chart demonstrates the service time impact for a zOS workload with storage on an HDS USP-V storage system. The workload was incrementally increased by 1,000 I/Os.
Evaluate Impact of Changing Disk Capacity
IntelliMagic Direction provides insight into any number of hardware changes providing you the ability to determine the right configuration for your workload and budget. In the following example IntelliMagic Direction demonstrates the impact to service time when the individual capacity of the drives is changed from 450 GB to 300 GB while keeping the net capacity the same. In essence the number of spindles is reduced placing more load on a few number of drives. In the example below a Managed Disk Group (MDG) from SAN Volume Controller composed of 450 GB drives on a DS8700 becomes saturated at 34,856 I/Os per second.
Evaluate the Impact of Changing from RAID10 to RAID5
With IntelliMagic Direction you can decide if your workload will perform adequately on different RAID configurations such as RAID 5. The following graph depicts the impact of incrementally increasing the zOS I/O workload by 1,000 I/Os/sec on an EMC V-MAX storage system. The scenario is modeled using RAID5 and RAID10. For this particular workload the response time drastically increases when using RAID5 verus RAID10.
Component Utilization
IntelliMagic Direction not only provides response time predictions, but it also shows the utilization of key internal components of the disk system, such as the internal processor, bus, and host adapters. This way you can determine which parts of your disk system are most heavily used. This information is very helpful when consolidating workloads or when hunting down performance problems.
