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
5. Click OK.
● If Scheduled is not selected, the snapshot is created.
● If Scheduled is selected, the schedule is created and can be viewed in the Manage Schedules panel. For information on
modifying or deleting schedules through this panel, see Managing scheduled tasks.
Resetting a snapshot
As an alternative to taking a new snapshot of a volume, you can replace the data in a standard snapshot with the current data in
the source volume. The snapshot name and mappings are not changed.
This feature is supported for all snapshots in a tree hierarchy. However, a virtual snapshot can only be reset to the parent
volume or snapshot from which it was created.
CAUTION: To avoid data corruption, unmount a snapshot from hosts before resetting the snapshot.
You can reset a snapshot immediately. You also have the option of scheduling a reset-snapshot task.
To see more information about a snapshot, hover the cursor over the item in the volumes table. You can view different snapshot
information by hovering the cursor over the snapshot in the Snapshots table. See Viewing volumes for more details about the
Volume Information and Snapshot Information panels that appear.
Reset a snapshot
Perform the following steps to reset a snapshot:
1. Unmount the snapshot from hosts.
2. In the Volumes topic, select a snapshot.
3. Select Action > Reset Snapshot.
The Reset Snapshot panel opens.
4. Optional: To schedule a reset task, perform the following steps:
● Select the Schedule check box.
● Specify a date and time at least five minutes in the future to run the task. The date must use the format yyyy-mm-dd.
The time must use the format hh:mm and include either AM, PM, or 24H (24-hour clock). For example, 13:00 24H is the
same as 1:00 PM.
● Optional: If you want the task to run more than once:
○ Select the Repeat check box and specify how often the task should run.
○ Optional: Specify when the task should stop running.
○ Optional: Specify a time range within which the task should run.
○ Optional: Specify days when the task should run. Ensure that this constraint includes the start date.
5. Click OK.
● If the Schedule check box was not selected, a Confirm Operation dialog box is displayed.
Click OK to reset the snapshot.
NOTE: You can remount the snapshot after it is reset.
● If the Schedule check box was selected, the reset snapshot schedule is created and a Success dialog box is displayed.
Click OK to close the Success dialog box. The schedule can be viewed in the Manage Schedules panel, as described in
Managing scheduled tasks.
NOTE: Remember to unmount the snapshot before the scheduled task runs.
Creating a replication set from the Volumes topic
You can create a replication set, which specifies the components of a replication. The Create Replication Set panel enables you
to create replication sets. You can access this panel from both the Replications and Volumes topics.
Performing this action creates the replication set and the infrastructure for the replication set. For a selected volume, snapshot,
or volume group, the action creates a secondary volume or volume group and the internal snapshots required to support
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Working in the Volumes topic