Parallel Access Volumes (PAV) allow z/OS to start more than 1 I/O to each System z 3390 image. This way most queueing can be eliminated, and overall I/O throughput can be improved significantly.
PAV uses ‘alias’ addresses are used to start the additional I/Os. The ‘alias’ addresses need to be configured by the installation. Two different modes are supported in z/OS:
- With Static PAVs the alias assignment is fixed, so you need to manually assign a certain number of aliases to each volume for which you want to reduce queueing.
- With Dynamic PAVs the alias assignment will be more dynamic, you simply assign a pool of addresses to each LCU. z/OS will assign the aliases where they are most useful to reduce queuing and to help meet the service objectives of your installation.
- With HyperPAV the alias assignment occurs for each individual I/O request for each LPAR accessing the Disk Subsystem. This mechanism is by far the most efficient.
When HyperPAV cannot be used, dynamic PAV (shown in the image) is the preferred option to use, as it will automate the alias management.
You do need to know how many aliases to assign to each volume. How many are needed depends mostly on the activity of the volume, where larger volumes (“3390 Model 54”) are more likely to show a high I/O rate. IntelliMagic Vision for z/OS provides recommendations on the number of aliases required for both HyperPAV and Dynamic PAV configurations.
zSystems Performance Management
Optimize z/OS Mainframe Systems Management with Availability Intelligence
Benefits
Optimize z/OS Systems performance management using AI-driven analytics to proactively monitor and manage your z/OS environment, prevent disruptions, reduce costs, and preserve the reliability and availability that mainframes are known for.
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Db2 Performance Management
Prevent Availability Risks and Optimize Db2 Performance
Benefits
The volume and complexity of Db2 Statistics data and Db2 Accounting data creates a major challenge for analysts who want to derive value from the rich metrics available.
Easy visibility into key Db2 metrics through SMF records is crucial to proactively prevent availability risks and to effectively manage and optimize performance.
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Easy visibility into key Db2 metrics through SMF records is crucial to proactively prevent availability risks and to effectively manage and optimize performance.
CICS Performance Management
Monitor and Profile CICS Transactions and Regions with IntelliMagic Vision
Benefits
CICS SMF Transaction data is a rich source of performance insights, but its volume can make analysis challenging using traditional approaches that rely on static reports. Proactive assessment of key Statistics metrics across all regions is essential to identify potential risks to availability.
IntelliMagic Vision enables performance analysts to manage and optimize their z/OS CICS transactions more effectively and efficiently, as well as proactively assess the health of their CICS regions.
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IntelliMagic Vision enables performance analysts to manage and optimize their z/OS CICS transactions more effectively and efficiently, as well as proactively assess the health of their CICS regions.
Virtual Tape Performance Management
Proactively Manage Virtual and Physical Tape Environments
Benefits
With tape virtualization, tape storage became easier and more economical, but at the same time, more difficult to understand which changes or hardware upgrades are the best choices. With tape libraries being shared across multiple z/OS images, the full picture can only be obtained by aggregating workload and tape hardware information from all z/OS LPARs.
IntelliMagic Vision enables performance analysts to manage and optimize their z/OS Virtual Tape environments more effectively and efficiently.
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IntelliMagic Vision enables performance analysts to manage and optimize their z/OS Virtual Tape environments more effectively and efficiently.
Disk & Replication Performance Management
Automatically Detect Disk Performance Risks & Quickly Resolve Issues
Benefits
As Disk speeds and throughputs have increased, z/OS applications have come to rely on fast and consistent storage performance. To respond quickly to unexpected disk and replication issues, it is essential that you have insight into the health of the various components in your storage environment.
IntelliMagic Vision enables performance analysts to manage and optimize their z/OS Disk and Replication environment more effectively and efficiently.
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IntelliMagic Vision enables performance analysts to manage and optimize their z/OS Disk and Replication environment more effectively and efficiently.
MQ Performance Management
Optimize and Analyze MQ Activity and Performance
Benefits
MQ is widely used across z/OS environments, but sites often find it challenging to derive the valuable performance insights potentially available from MQ SMF Statistics and Accounting data due to limitations in existing reporting and available tooling.
IntelliMagic Vision enables performance analysts to manage and optimize their z/OS MQ configurations and activity more effectively and efficiently, as well as proactively assess the health of their queue managers.
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IntelliMagic Vision enables performance analysts to manage and optimize their z/OS MQ configurations and activity more effectively and efficiently, as well as proactively assess the health of their queue managers.
z/OS Network Performance Management
Automatically Monitor Mainframe Network Security and Protect Your Data
Benefits
TCP/IP is the core of the communication for the z/OS mainframe, both for traffic into and out of the mainframe and internal communication among z/OS images and processor complexes. Proper management is necessary to secure and protect system availability.
IntelliMagic Vision automatically generates GUI-based, interactive, IBM best-practice compliant rated reports that proactively identify areas that indicate potential upcoming risk to TCP/IP health, performance, and security.
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IntelliMagic Vision automatically generates GUI-based, interactive, IBM best-practice compliant rated reports that proactively identify areas that indicate potential upcoming risk to TCP/IP health, performance, and security.
z/OS Connect: Modern Mainframe API Environment
Optimizing Mainframe API Monitoring for Improved Resource Management
Benefits
IntelliMagic Vision enhances mainframe API monitoring and profiling, providing crucial visibility to address issues at the API or service level, ultimately aiding performance analysts in better resource planning and management reporting.
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