Help
Table Of Contents
- Dell EMC Storage Systems Online Help for the metro node appliance
- Contents
- Figures
- Welcome
- Using the GUI
- Configuring GUI default settings
- Using storage hierarchy maps
- Viewing system status
- Monitoring the system
- Performance
- The Performance Monitoring dashboard
- Viewing a chart
- Modifying a dashboard layout
- Creating a custom dashboard
- Removing a chart
- Moving a chart
- Back-end Bandwidth Chart
- Back-end Throughput chart
- Back-end Errors chart
- Back-end Latency chart
- CPU utilization chart
- Heap Usage chart
- Front-end Queue Depth chart
- Front-end Bandwidth chart
- Front-end Latency chart
- Front-end Throughput chart
- Front-end Aborts chart
- Write Latency Delta chart
- WAN Port Performance chart
- WAN Latency chart
- Rebuild Status dashboard
- Virtual Volumes dashboard
- Front End Ports dashboard
- System Health
- Performance
- Provisioning storage
- Guide
- Provisioning from storage volumes
- Provision Job properties
- Distributed storage
- Storage arrays
- Storage volumes
- Devices
- About devices
- Using the Devices view
- The Create Devices wizard
- The Add Local/Remote Mirror wizards
- Viewing the status of IO to a device
- Creating a device
- Renaming a device
- Deleting a device
- Mirroring a device
- Device status
- Device component properties
- Device properties
- Distributed device properties
- Add capacity to virtual volumes
- Extent properties
- Extents
- Distributed devices
- About distributed devices
- The Distributed Devices view
- The Create Distributed Device from Claimed Storage Volumes wizard
- Distributed device rule sets
- Changing the rule set for a distributed device
- Creating a distributed device
- Deleting a distributed device
- Renaming a distributed device
- Distributed Device status
- Virtual volumes
- About virtual volumes
- The Virtual Volumes view
- The Distributed Virtual Volumes view
- Creating a virtual volume
- About virtual volume expansion
- Expanding a virtual volume using storage volumes
- Enabling or disabling remote access for a volume
- Manually assigning LUN numbers to volumes
- Deleting a volume
- Renaming a volume
- Tearing down a volume
- Virtual Volume status
- Pool properties
- Virtual volume properties
- Show ITLs dialog box
- Logical unit properties
- ALUA Support field values
- Visibility field values
- Extent or Device mobility job properties
- Metro node port properties
- Storage array properties
- Storage view properties
- Storage volume properties
- Create Virtual Volumes dialog box
- Consistency group
- About consistency groups
- Using the Consistency Groups view
- Distributed Consistency Groups view
- Create Consistency Group wizard
- Types of consistency groups
- Creating a consistency group
- Adding a volume to a consistency group
- Removing a volume from a consistency group
- Deleting a consistency group
- Consistency Group status
- Consistency group properties
- Step 1: Select or create a consistency group for the virtual volume
- Step 1: Create a consistency group
- Step 2: Select volume options
- Step 3: Select a storage pool
- Step 3: Select a pool for each mirror on the second cluster
- Step 3: Select a pool for each mirror in the cluster
- Step3: Create thin virtual volumes
- Select a storage view for the virtual volume(s) (optional)
- Step 5: Review your selections
- Step 6: View results
- Step 2: Select volume options
- Step 2: Select volume options
- Step 3: Select a storage volume to create the virtual volume
- Step 3: Select a source and target storage volume
- Step 3: Create thin volumes
- Step 3: Select a target storage volume on the remote cluster
- Step 3: Select target storage on the remote cluster
- Step 6: View results
- Show Logical Units
- Exporting storage
- Initiators and metro node ports
- Storage views
- About storage views
- Using the Storage Views screen
- The Create Storage View wizard
- Creating a storage view
- Deleting a storage view
- Renaming a storage view
- Adding or removing initiators from a storage view
- Adding virtual volumes to a storage view
- Removing virtual volumes from a storage view
- Adding or removing metro node ports from a storage view
- Storage view status
- Storage group properties
- Director properties
- Cluster properties
- Moving data
- Mobility
- Move Data Within Cluster
- Move Data Across Clusters
- Create Mobility Job wizards
- Mobility job transfer size
- Creating a mobility job
- Viewing job details
- Committing a job
- Canceling a job
- Pausing a job
- Resuming a job
- Removing the record of a job
- Changing a job transfer size
- Searching for a job
- Mobility job status
- Notifications
Health state Definition
Degraded The storage volume may be out-of-date and/or the underlying disk is not
performing optimally.
Unknown Metro node cannot determine the storage volume's Health state, or the state
is invalid.
Non-recoverable error The storage volume may be out-of-date compared to its mirror (applies only
to a storage volume that is part of a RAID-1 Metadata Volume), and/or metro
node cannot determine the Health state.
Critical failure Metro node has marked the storage volume as hardware-dead.
Isolated The storage volume is not performing optimally, which caused metro node to
prevent IO to the mirror.
Operational state Definition
OK The storage volume is functioning normally.
Degraded The storage volume may be out-of-date and/or the underlying disk is not
performing optimally.
Unknown Metro node cannot determine the storage volume's Operational state, or the
state is invalid.
Error Metro node has marked the storage volume as hardware-dead.
Starting The storage volume is not yet ready.
Lost communication The storage volume is unreachable.
I/O state Definition
Alive I/O is proceeding normally to the storage volume.
Dead Metro node has marked the storage volume as dead; I/O cannot proceed on the
storage volume. This can happen when a certain number of I/Os to the storage
volume fails.
Unreachable Metro node has lost communication with the storage volume.
Devices
About devices
Devices combine extents or other devices into one large device with specific RAID techniques such as mirroring or striping.
Devices can only be created from extents or other devices. A device's storage capacity is not available until you create a virtual
volume on the device and export that virtual volume to a host. You can create only one virtual volume per device. Creating a
virtual volume on a device indicates the device configuration is complete.
Note that devices use storage from one cluster only. To create a device from storage in both clusters in a metro node Metro,
refer to Creating distributed devices.
There are two ways to create devices:
● Simple — a device configured by using one component (an extent).
● Complex — a device that has more than one component, combined by using a specific RAID type. The components can be
extents or other devices (both simple and complex).
To create a device using different device types, use the CLI. The CLI Guide for metro node provides more information.
Provisioning storage
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