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
To configure a time period to suspend and resume DSD for all disks, see Scheduling drive spin down for available disks and global
spares.
DSD affects disk operations as follows:
● Spun-down disks are not polled for SMART events.
● Operations requiring access to disks may be delayed while the disks are spinning back up.
Configure DSD for available disks and global spares
1. In the System topic, select Action > Advanced Settings > Disk.
2. Set the options:
● Either select to enable, or clear to disable the Available and Spare Drive Spin Down Capability option. If you are
enabling DSD, a warning prompt appears. To use DSD, click Yes. To leave DSD disabled, click No.
● Set the Drive Spin Down Delay (minutes) option, which is the period of inactivity after which available disks and global
spares automatically spin down, from 1 through 360 minutes. The default is 15 minutes.
3. Click Apply. When processing is complete a success dialog appears.
4. Click OK.
Scheduling drive spin down for available disks and global spares
For all spinning disks that are configured to use drive spin down (DSD), you can configure a time period to suspend and resume
DSD so that disks remain spun-up during hours of frequent activity.
To configure DSD for available disks and global spares, see Configuring drive spin down for available disks and global spares.
DSD affects disk operations as follows:
● Spun-down disks are not polled for SMART events.
● Operations requiring access to disks may be delayed while the disks are spinning back up.
● If a suspend period is configured and it starts while a disk has started spinning down, the disk spins up again.
Schedule DSD for all spinning disks
1. In the System topic, select Action > Advanced Settings > Disk.
2. Set the options:
● Select the Drive Spin Down Suspend Period option.
● Set the Time to Suspend and Time to Resume options. For each, enter hour and minutes values and select either AM,
PM, or 24H (24-hour clock).
● If you want the schedule to apply only Monday through Friday, select the Exclude Weekend Days from Suspend Period
option.
3. Click Apply. When processing is complete a success dialog appears.
4. Click OK.
Changing system cache settings
The Cache tab provides options to change the synchronize-cache mode, missing LUN response, host control of the write-back
cache setting, cache redundancy mode, and auto-write-through cache triggers and behaviors.
Changing the synchronize-cache mode
You can control how the storage system handles the SCSI SYNCHRONIZE CACHE command. Typically you can use the default
setting. However, if the system has performance problems or problems writing to databases or other applications, contact
technical support to determine if you should change this option.
70
Working in the System topic