Administrator Guide
Table Of Contents
- Dell EMC PowerVault ME4 Series Storage System Administrator’s Guide
- Contents
- Getting started
- New user setup
- Configure and provision a new storage system
- Using the PowerVault Manager interface
- System concepts
- About virtual and linear storage
- About disk groups
- About RAID levels
- About ADAPT
- About SSDs
- About SSD read cache
- About spares
- About pools
- About volumes and volume groups
- About volume cache options
- About thin provisioning
- About automated tiered storage
- About initiators, hosts, and host groups
- About volume mapping
- About operating with a single controller
- About snapshots
- About copying volumes
- About reconstruction
- About quick rebuild
- About performance statistics
- About firmware updates
- About managed logs
- About SupportAssist
- About CloudIQ
- About configuring DNS settings
- About replicating virtual volumes
- About the Full Disk Encryption feature
- About data protection with a single controller
- Working in the Home topic
- Guided setup
- Provisioning disk groups and pools
- Attaching hosts and volumes in the Host Setup wizard
- Overall system status
- Configuring system settings
- Managing scheduled tasks
- Working in the System topic
- Viewing system components
- Systems Settings panel
- Resetting host ports
- Rescanning disk channels
- Clearing disk metadata
- Updating firmware
- Changing FDE settings
- Configuring advanced settings
- Changing disk settings
- Changing system cache settings
- Configuring partner firmware update
- Configuring system utilities
- Using maintenance mode
- Restarting or shutting down controllers
- Working in the Hosts topic
- Working in the Pools topic
- Working in the Volumes topic
- Viewing volumes
- Creating a virtual volume
- Creating a linear volume
- Modifying a volume
- Copying a volume or snapshot
- Abort a volume copy
- Adding volumes to a volume group
- Removing volumes from a volume group
- Renaming a volume group
- Remove volume groups
- Rolling back a virtual volume
- Deleting volumes and snapshots
- Creating snapshots
- Resetting a snapshot
- Creating a replication set from the Volumes topic
- Initiating or scheduling a replication from the Volumes topic
- Manage replication schedules from the Volumes topic
- Working in the Mappings topic
- Working in the Replications topic
- About replicating virtual volumes in the Replications topic
- Replication prerequisites
- Replication process
- Creating a virtual pool for replication
- Setting up snapshot space management in the context of replication
- Replication and empty allocated pages
- Disaster recovery
- Accessing the data while keeping the replication set intact
- Accessing the data from the backup system as if it were the primary system
- Disaster recovery procedures
- Viewing replications
- Querying a peer connection
- Creating a peer connection
- Modifying a peer connection
- Deleting a peer connection
- Creating a replication set from the Replications topic
- Modifying a replication set
- Deleting a replication set
- Initiating or scheduling a replication from the Replications topic
- Stopping a replication
- Suspending a replication
- Resuming a replication
- Manage replication schedules from the Replications topic
- About replicating virtual volumes in the Replications topic
- Working in the Performance topic
- Working in the banner and footer
- Banner and footer overview
- Viewing system information
- Viewing certificate information
- Viewing connection information
- Viewing system date and time information
- Viewing user information
- Viewing health information
- Viewing event information
- Viewing capacity information
- Viewing host information
- Viewing tier information
- Viewing recent system activity
- Other management interfaces
- SNMP reference
- Using FTP and SFTP
- Using SMI-S
- Using SLP
- Administering a log-collection system
- Best practices
- System configuration limits
- Glossary of terms
Working in the Performance topic
Topics:
• Viewing performance statistics
•
Updating historical statistics
• Exporting historical performance statistics
• Resetting performance statistics
Viewing performance statistics
The Performance topic shows performance statistics for the following types of components: disks, disk groups, virtual pools,
virtual tiers, host ports, controllers, and volumes. For more information about performance statistics, see About performance
statistics.
You can view current statistics in tabular format for all component types, and historical statistics in graphical format for disks,
disk groups, and virtual pools and tiers.
View performance statistics
1. In the Performance topic, select a component type from the Show list. The components table shows information about each
component of that type in the system.
2. Select one or more components in the list.
3. Click Show Data. The Current Data area shows the sample time, which is the date and time when the data sample was
collected. It also shows the total duration of all data samples, which is the time period between collection and display of the
current sample, the previous sample, if any, and a table of current performance statistics for each selected component.
4. To view graphs of historical data for the selected disks, disk groups, virtual pools, or virtual tiers, select the Historical Data
check box. The Historical Data area shows the time range of samples whose data is represented by the graphs, and the Total
IOPS graph by default.
5. To specify either a time range or a count of historical statistics samples to display, perform the following:
● Click Set time range. The Update Historical Statistics panel opens and shows the default count value of 100.
● To specify a count, in the Count field, enter a value in the range of 5–100 and click OK.
● To specify a time range, perform the following:
○ Select the Time Range check box.
○ Set date/time values for the starting and ending samples. The values must be between the current date/time and 6
months in the past. The ending values must be more recent than the starting values.
NOTE: If you specify a time range, it is recommended to specify a range of 24 hours or less.
○ Click OK. In the Historical Data area, the Time Range values are updated to show the times of the oldest and newest
samples displayed, and the graph for the selected components is updated.
6. To view different historical statistics, select a graph from the Statistics list. For a description of each graph, see Historical
performance graphs on page 135.
7. To hide the legend in the upper right corner of a historical statistics graph, clear the Show Legend check box.
Historical performance graphs
The following table describes the graphs of historical statistics that are available for each component type. In the graphs,
measurement units are automatically scaled to best represent the sample data within the page space.
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Working in the Performance topic 135