- Notes, cautions, and warnings
- Preface
- CLI Workspace and User Accounts
- Meta Volumes
- System Management
- Events and alerts
- About call-home notifications
- Additional documentation
- SupportAssist MFT feature
- Event log locations
- System Configuration log location
- SupportAssist Syslog
- SupportAssist syrcollect feature
- SupportAssist Connectivity Command
- Hardware acceleration with VAAI
- Offload copy overhead with XCOPY
- Change the name of the cluster
- LCD Front Panel settings
- Thin support in metro node
- Provisioning Storage
- Volume expansion
- Data migration
- About data migrations
- Migrating thin-capable storage
- About rebuilds
- One-time data migrations
- Batch migrations
- Prerequisites
- Creating a batch migration plan
- Checking a batch migration plan
- Modifying a batch migration file
- Starting a batch migration
- Pausing/resuming a batch migration (optional)
- Canceling a batch migration (optional)
- Monitoring a batch migration’s progress
- Viewing a batch migration’s status
- Committing a batch migration
- Cleaning a batch migration
- Removing batch migration records
- Configure the WAN Network
- Cluster Witness
- Consistency Groups
- Performance and Monitoring
- Metro node with active-passive storage arrays
Dell EMC Metro node 7.1 Administrator Guide
Rediscover the array
You may need to rediscover the array after expansion. Depending on the type and configuration of the back-end array, the storage array might not support auto-discovery by metro node.
Best practice
If metro node does not automatically detect the change in the storage volume, use the array-rediscover command to force metro node to recognize the back-end expansion.
If you are performing multiple storage volume expansions on the array, complete all storage volume expansions, and rediscover the array only once to force metro node to detect all the expansions.
Some arrays need specific system settings to enable support of auto discovery.
Refer to the SolVe Desktop for the procedures to configure storage arrays for metro node.
NOTE:Review the applicable best practices for host and array connectivity and configuration in the SolVe Desktop. Some arrays require specific settings for automatic detection.
CAUTION:Array rediscoveries may consume excessive resources and can be disruptive to I/O. Rediscover arrays only when necessary.
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