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Foglight for Infrastructure 5.9.4 - User Guide

Using Foglight for Infrastructure Monitoring log files with Foglight Log Monitor Monitoring IBM PowerVM environments
Before you begin Managing PowerVM HMC agents Monitoring your PowerVM environment
Advanced system configuration and troubleshooting Reference
Foglight for Infrastructure views Foglight Log Monitor views Rules Metrics
Appendix: Building regular expressions in Foglight

Investigating the use of PowerVM partition and VIOS memory resources

The Memory tab of the Partition detail view or VIOS detail view shows the amount of memory resources dedicated to the selected PowerVM® partition or PowerVM VIOS, their entitlement model, and identifies the managed server on which the partition is running. It also shows the overall memory utilization on the selected partition and the amount of memory the top processes are consuming. The Top Memory Consumers table lists both resident and virtual sizes for the top processes.

To navigate to this tab, in the Selected Service PowerVM view, select a PowerVM partition or PowerVM VIOS, click Explore, and in the view that appears, open Memory tab.

Figure 30. Memory tab

Table 12. Memory tab

Memory Entitlement

 

Currently Entitled

The amount of memory allocated to this PowerVM partition or VIOS.

 

Entitlement Model

Indicates if the memory resources allocated to PowerVM partition or VIOS can be allocated to the shared memory pool and reallocated to other PowerVM partitions or virtual I/O servers.

 

Entitlement History

The amount of memory allocated to this PowerVM partition or VIOS over the selected time range.

Related Server

 

Server Name

The name of the PowerVM server this PowerVM partition or VIOS belongs to.

 

Memory Allocation

 

 

Dedicated

The amount of memory that is allocated to the PowerVM server this PowerVM partition or VIOS belongs to, and is currently in use by the associated PowerVM partitions.

 

 

Hypervisor Used

The amount of memory that is allocated to the PowerVM server this PowerVM partition or VIOS belongs to, and is currently in use by the PowerVM Hypervisor software layer.

 

 

Available

The amount of memory that is allocated to the PowerVM server this PowerVM partition or VIOS belongs to, and is available for use.

 

View dedicated partitions on this server

Click this link to display the All Dedicated Partitions in Server dialog box that lists all dedicated PowerVM partitions that belong to this PowerVM server, their entitlement, utilization, and usage.

Exploring processor, memory, and storage breakdowns

The Breakdown views on the CPU, Memory, and Storage tabs of the managed server details view, and on the Storage tab of the VIOS details view show the amount of processor, memory, and storage resources the selected managed server or PowerVM® VIOS uses from the Global Default Pool over the selected time range. Use this view to find out how the selected object uses the allocated resources, and if there are any patterns indicating their usage levels that may potentially compromise the stability of your infrastructure.

To navigate to this tab, in the Selected Service PowerVM view, select a managed server, or a PowerVM VIOS, and click Explore. Open the CPU (PowerVM servers only), Memory (PowerVM servers only), or Storage tab, and then open the Breakdown tab.

Figure 31. Breakdown tab

Table 13. Breakdown tab

Information about the processor dedicated to the PowerVM partitions that are running on the selected managed server.

The number of processing units shard among the PowerVM partitions that are running on the selected managed server.

The number of processing units that are allocated to the PowerVM partitions that are running on the selected managed server.

The number of processing units that are available for allocation to the PowerVM partitions that are running on the managed server.

The number of processing units that are reserved by the Shared Processor Pool associated with the selected managed server.

 

The total number of processing units that are borrowed from donating PowerVM partitions and of all processing units.

The total number of processing units contributed to the global default pool, over the selected time range.

The number of processing units contributed to the global default pool that are in use by the associated PowerVM partitions, over the selected time range.

 

The highest number of processing units allocated to the additional pool, over the selected time range.

The number of processing units allocated to the additional pool that are in use, over the selected time range.

The number of processing units allocated to the additional pool that are reserved, over the selected time range.

The amount of memory that is allocated specifically to the partitions running on the managed server, and not participating in shared memory pools.

The number of partitions to which the managed server allocates memory resources that do not participate in shared memory pools.

The total amount of memory that is allocated specifically to the partitions running on the managed server, and not participating in shared memory pools, over the selected time range.

The amount of memory that is allocated specifically to the partitions running on the managed server, and used by those partitions, over the selected time range.

Information about the memory resources that the managed server allocates to the shared memory pool.

Information about the disk volume that is not allocated to the partitions running on the managed server or PowerVM VIOS.

Information about disk volumes that are dedicated and in use.

Physical Volume

The number of physical disks that are used to create volume-based pools.

Volume Based Pools

The number of volume-based pools associated with the selected managed server or PowerVM VIOS.

The amount of disk space that is allocated and used by to the PowerVM partitions running on the managed server, over the selected time range.

The total size of the volume-based pool.

Investigating volume-based storage pools

PowerVM® managed servers and PowerVM virtual I/O servers typically rely on volume-based shared storage pools to efficiently use system resources and increase their overall utilization. When you explore the managed server and PowerVM VIOS Storage Breakdown views, you can drill down on a volume-based storage pool to see the logical volumes that belong to it, the PowerVM partition associated with them, their size, and other details, in the Details Of Volume Based Pool view. This view also displays general information about the selected disk pool, such as its size, the managing VIOS, and identifies the hard disks on which the containing logical disk partitions. Use this view to find out the sizes of individual volumes and their association with PowerVM partitions, when needed.

To navigate to this view, in the Selected Service PowerVM view, select a managed server or a PowerVM VIOS, and click Explore. Open the Storage tab, and in the Volume Based Pool Entitled view, click the title bar of the volume-based pool that you want to investigate.

Use this view to find out how the selected object uses the allocated resources, and if there are any patterns indicating their usage levels that may potentially compromise the stability of your infrastructure.

 

Pool Size

The total amount of disk space participating in the volume-based pool.

 

Used

The total of disk space participating in the volume-based pool that is currently in use.

 

Available

The total of disk space participating in the volume-based pool that is currently available.

 

Managed by VIOS

The PowerVM VIOS that is managing the volume-based pool.

 

Pool make up

A pie chart indicating the amount of disk space each physical disk contributes to the volume-based pool.

 

Volume Name

The name of the logical disk.

 

Volume Size

The size of the logical disk.

 

Depended by Partition

The name of the PowerVM partition using the logical disk.

 

BD File

The name of the Backing Device (BD) file, used for storage virtualization.

 

File Size

The size of the BD file.

 

Depended by Partition

The name of the PowerVM partition using the BD file.

 

Media File

The name of the file created by the media repository, used for optical virtualization.

 

File Size

The size of the media file.

 

Depended by Partition

The name of the PowerVM partition using the media file.

Exploring top resource analyzers

The Top Analyzer views appearing on the individual tabs of the managed server details view and PowerVM VIOS details view identify the partitions with the highest resource entitlement, utilization, and usage, and the physical adapters with the highest network throughput. Use them it to find out if any of the logical partitions running on the selected managed server or associated with the selected PowerVM VIOS show the signs of processor, memory, or disk space exhaustion or poor utilization, or unusually high network activity. This can help you maintain the stability of your system and ensure optimum resource usage.

To navigate to this tab, in the Selected Service PowerVM view, select a managed server or a VIOS, and click Explore. Open the CPU (managed servers only), Memory (managed servers only), Storage, or Network tab, and open the Top CPU Analyzer (managed servers only), Top Memory Analyzer (managed servers only), Top Storage Analyzer, or Top Network Analyzer tab.

Display Top n partitions with most…

Select the number of partitions that you want to display and the metric type that you want to use as a filter.

When Entitlement is selected, the Total CPU Resource areas in the graph represent the number of processing units allocated to the PowerVM partitions that are associated with the managed server.

When Utilization is selected, the areas in the graph represent the percentage of the managed server processor resources allocated to the partitions that are associated with the server and in use over the selected time range.

When Usage is selected, the areas in the graph represent the number of processing units allocated to the partitions associated with the managed server that are in use over the selected time range.

When Entitlement is selected, the Total Memory Resource areas in the graph represent the amount of memory resources allocated to the PowerVM partitions that are associated with the managed server.

When Utilization is selected, the areas in the graph represent the percentage of the managed server memory resources allocated to the partitions associated with the server that are in use over the selected time range.

When Usage is selected, the areas in the graph represent the amount of memory resources allocated to the partitions associated with the managed server that are in use over the selected time range.

When Usage is selected, the areas in the graph represent the disk space allocated to the partitions associated with the managed server or PowerVM VIOS, that are in use over the selected time range.

The name of the partition.

Top CPU Analyzer and Top Memory Analyzer only. Indicates if the processor or memory resources allocated to the PowerVM partition are participated in shared processor or memory pools (Shared), or are dedicated specifically to that partition (Dedicated).

A spark line indicating the amount of processor, memory, or storage resources that are allocated to the PowerVM partition.

A spark line indicating the percentage of processor or memory resources allocated to the partition that are in use.

A spark line indicating the amount of processor, memory, or storage resources that are currently in use by the PowerVM partition.

The areas in the chart represent the rate at which each identified physical adapter transfers data to and from the network.

The name of the physical adapter.

A sparkline indicating the rate at which the physical adapter transfers data to and from the network.

A sparkline indicating the rate at which the physical adapter drops data packets while transferring data to and from the network. By default, network adapters send or receive multiple data packets in a single request. When data packets are dropped before reaching their destinations, this may indicate a problem with the network connection or the network adapters.

A sparkline indicating the rate at which the physical adapter encounters errors while transferring data to and from the network.

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