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Foglight for Storage Management Shared 4.7 - User and Reference Guide

Getting Started Configuring Agents to Monitor Storage Devices
Brocade SAN Switches Cisco SAN Switches Dell Compellent Arrays Dell EqualLogic PS Series Array Groups EMC CLARiiON CX Series Arrays (CLI) EMC CLARiiON, VNX, or VMAX Storage Arrays (SMI-S) EMC Isilon EMC VPLEX Hitachi Data Systems AMS, USP, and VSP HP EVA Storage Arrays HP 3PAR Arrays NetApp Filers Collection Target Support Matrix Configuration Procedures
Managing Agents Using Foglight for Storage Management Monitoring Storage Performance Investigating Storage Devices Investigating Storage Components Investigating VPLEX Storage Troubleshooting Storage Performance Managing Data Collection, Rules, and Alarms Understanding Metrics Online-Only Topics

Pool belonging to a non-clustered storage array or EqualLogic storage array

To explore a pool:
1
On a dashboard, click a pool name.
The Pool dashboard opens.
2
Review overall performance in the Summary tab. From here you can initiate further analysis of the pool in terms of performance and, in some cases, pool capacity.
•
Details. Displays the pool’s status, parent storage array, physical state, health score, and current values for Total Advertised LUNs Size, Total Usable Capacity, Available Usable Capacity, Overcommitment, Total Raw Capacity, and Available Raw Capacity, if available.
•
Charts. Displays the following sets of metrics over the time period, if available:
- Data Rate. Plots values for Data Rate, Data Read Rate, and Data Write Rate.
- Ops Rate to Disk. Plots values for Ops Rate, Read Ops Rate, and Write Ops Rate.
- Latency. Plots values for Latency, Read Latency, and Write Latency.
- Average Queue Depth. Plots values for Average Queue Depth.
•
Perform Pool Change Analysis. Click to identify the LUNs primarily responsible for increased I/O. For more information, see Analyzing the Pool.
•
Perform Pool Load Analysis. Click to identify the busiest LUNs, and rank them based on their activity during the same time range over the last 30 days. For more information, see Analyzing the Pool.
•
Alarm Summary. Displays alarms on the pool.
3
Click the Capacity tab.
•
Capacity Summary. Pools in most arrays will display data similar to the data shown below.
For some arrays, pool capacity in Usable terms is not available. Then the capacity summary will display with total capacity in raw terms instead of usable terms.
•
Capacity Usage Trends. Provides a visual display of the estimated capacity consumption in the future, based on a regression analysis of the historical capacity consumption.
If time until full shows n/a, it means enough historical data hasn't been collected yet to perform an analysis. Mouse over for additional information. For more information, see Capacity Trending.
4
Click the LUNs tab. This tab displays the LUNs carved from this pool.
A LUN (logical unit) is the block storage element made available by an array or filer to a server.
•
Top 5 LUNs. Displays the top five LUNs with the highest average value for Data Rate, and the performance metrics most useful for this array or filer.
•
LUN Status Filter. Click to show only LUNs with the selected status in the LUN Details table.
•
LUN Details. For each LUN, displays its status, physical state, parent pool or aggregate, and whether the LUN is used by an entity in the monitored environment. The metric columns display current values for Data Rate, Ops Rate, Latency, % Busy, Average Queue Depth, L1 Cache Hit Rate, and Total Advertised LUNs Size. Click a Sparkline to plot metric values over the time period.
 
* 
NOTE: If a metric is not available for this particular array or filer, the column is not displayed.
The remaining columns provide the following details:
- Protection. Displays the type of protection in use on the LUN, such as the RAID level.
- Thin?. Indicates whether the LUN is thin-provisioned (true) or thick-provisioned.
- IQN. Displays the iSCSI Qualified Name. Click the Customizer to add this column.
- vFiler. Filers only. Displays the name of the virtual filer associated with the LUN.
•
Alarm Summary. Displays alarms on LUNs.
5
Click the Disks tab.
Displays the disks used by the selected pool. For more information, see Common Component Disk Tab Data.
6
To investigate further:
•
Click a LUN name. See Investigating a LUN.
•
Click a disk name. See Investigating a Physical Disk.

Pool belonging to an Isilon storage array

To explore a pool for an Isilon storage array:
1
On an Isilon-related dashboard, click a pool name.
The Pool dashboard opens.
2
Review overall performance in the Summary tab.
•
Pool Details. Displays the pool’s status, parent storage array, and current values for IFS Capacity: Free and IFS Capacity Used for the IFS file system. In addition, the total capacity is broken down into hard disk drive and solid state drives metrics as follows:
- Total. IFS Capacity: Total and IFS Capacity: Free
- HDD. IFS Capacity: HDD Total and IFS Capacity: HDD Free
- SSD. IFS Capacity: SDD Total and IFS Capacity: SDD Free
•
Performance. Charts plot the following metrics for the selected pool over the time period: % Busy, Latency, L1 Cache Hit Rate, L2 Cache Hit Rate, Data Read Rate, Data Write Rate, Read Ops Rate, and Write Ops Rate.
•
Node Status Filter. Click to show only member nodes with the selected status in the Node Details table.
•
Node Details. For each node belonging to the pool, displays its name, status, physical state, and current values for Data Rate, % Busy, Latency, L2 Cache Hit Rate, IFS Capacity, and IFS Capacity: Free. Also displays the worst status of the node’s disks, external network ports, and internal network ports, and identifies the node’s parent pool. Click a Sparkline to plot metric values over the time period.
You can add the following metrics to the table by clicking the Customizer icon:
L1 Cache Hit Rate, Send Data Rate and Rcv Data Rate. You can also choose to display other Isilon details, such as Total Disk IOPS and Model.
•
Alarm Summary. Displays alarms on the pool.
3
Click the Capacity tab.
•
Capacity Usage Trends. Provides a visual display of the estimated capacity consumption in the future, based on a regression analysis of the historical capacity consumption.
If time until full shows n/a, it means enough historical data hasn't been collected yet to perform an analysis. Mouse over for additional information. For additional information, see Capacity Trending.
4
Click the Network tab. Assess the performance of the ports in the External Network from the perspective of the pool.
•
Charts. Plot aggregated values for Send Data Rate and Rcv Data Rate, and Packet Errors % for the external network connections over the time period.
•
Port Status Filter. Click to show only ports with a selected status in the Port Details table.
•
Port Details. For each port used by the external network, identifies the port name, parent node, status, physical state, and current values for Send Data Rate, Rcv Data Rate, and Packet Errors %. Also displays the maximum speed of the port. Click a Sparkline to plot metric values over the time period.
 
* 
NOTE: When the registry variable StSAN_StoragePortShowUtilMax is set to show port utilization, the chart and table display Rcv Util (% of max) and Send Util (% of max).
•
Alarm Summary. Displays alarms on ports used by the external network.
5
Click the Disks tab. Displays the disks used by the selected pool. For more information, see Common Component Disk Tab Data.
6
To investigate further, click a disk name. See Investigating a Physical Disk.

Common Component Disk Tab Data

The Disks tab can be found on the following dashboards:

•
Member/Node
•
Pool
•
Aggregate
•
NASVolume.

The Disks tab displays the physical disks associated with the selected entity.

 
•
Top 5 Disks. Displays the top five disks with the highest average value for Ops Rate and the performance metrics most useful for this array or filer.
•
Disk Status Filter. Click to show only disks with the selected status in the Disk Details table.
•
Disk Details. For each disk, identifies its status, physical state, parent pool or aggregate, and Disk Size, and then displays current values for Ops Rate, % Busy, Average Queue Depth, Data Rate, and Latency. Click a Sparkline to plot metric values over the time period.
 
* 
NOTE: If a metric is not available for this particular array or filer, the column is not displayed.
The remaining columns provide the following details:
- Role. Displays the role played by the disk in the pool, such as disk or spare.
- RPM. Displays revolutions per minute as reported by the vendor.
- Disk Interface. When available, displays the type of interface, such as SATA or SCSI.
- Member. EqualLogic and Isilon only. Displays the name of the member node where the disk physically resides.
•
Alarm Summary. Displays alarms on disks.

 

Investigating VPLEX Storage

Investigating VPLEX Storage

To gain a complete picture of the performance of a VPLEX storage device, you need to understand how its child components are performing.

This section covers the following topics:

•
Introducing VPLEX Virtualization Components Dashboards
•
Investigating Director - Ports
•
Investigating a Virtual Volume
•
Related Topics
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