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 Pools topic
Topics:
• Viewing pools
•
Adding a disk group
• Modifying a disk group
• Removing disk groups
• Expanding a disk group
• Managing spares
• Create a volume
• Changing pool settings
• Verifying and scrubbing disk groups
• Removing a disk group from quarantine
Viewing pools
The Pools topic shows a tabular view of information about the pools and disk groups that are defined in the system, as well
as information for the disks that each disk group contains. Corresponding to the two storage methods, there are both virtual
and linear pools and disk groups. There is another type of disk group, the read-cache disk group, which is also related to virtual
storage. Read-cache disk groups consist of SSDs. If your system does not use SSDs, you will not be able to create read-cache
disk groups.
For more information about pools, see About pools on page 21. For more information about disk groups, see About disk groups
on page 15.
Pools table
The pools table shows the following information. The system is limited to two virtual pools, which are named A and B. When you
create a linear disk group, the system automatically creates a linear pool with the same name that you designated for the disk
group. The system supports up to 64 linear pools and disk groups.
● Name – Shows the name of the pool.
● Health – Shows the health of the pool: OK, Degraded, Fault, N/A, or Unknown.
● Size – Shows the storage capacity defined for the pool when it was created.
● Class – Shows the storage type for the pool: virtual or linear.
● Avail – Shows the storage capacity presently available for the pool.
● Volumes – Shows the number of volumes defined for the disk groups of the pool.
● Disk Groups – Shows the number of disk groups in the pool.
To see more information about a pool, hover the cursor over the pool in the table. The Pool Information panel that appears
contains the following information:
Table 11. Pool Information panel
Panel Information displayed
Pool Information
Virtual: Name, serial number, size, available, overcommit, pool overcommitted, low threshold, mid
threshold, high threshold, allocated pages, snapshot pages, available pages, sector format, health
Linear: Name, serial number, size, available, owner, sector format, health
For more information about and to manage the above overcommit, low threshold, mid threshold, and high threshold settings, see
Changing pool settings.
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Working in the Pools topic 81