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Key ONTAP concepts
Configure ONTAP
- Decide whether to use the ONTAP CLI for cluster setup
- Set up a cluster with the ONTAP CLI
- Configure All SAN Array Software
Upgrade cluster
- Upgrade Paths
- How do I plan my upgrade?
  - With Upgrade Advisor
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- What should I verify before I upgrade?
- How do I get and install the upgrade software image?
- Which upgrade method should I use?
- What should I do after my upgrade?
Revert cluster
- Do I need technical support?
- What are the revert paths?
- What should I read before I revert?
  - Pre-reversion resources
  - Revert considerations
- What should I verify before I revert?
- What else should I check before I revert?
- How do I get and install the revert software image?
- Revert my cluster
- What should I do after reverting my cluster?
Network management
- View and manage your network
- Download network data for reporting
- Set up NAS path failover (ONTAP 9.8 and later)
  - Workflow NAS path failover
  - Get more information
- Set up NAS path failover (ONTAP 9.0-9.7 CLI)
  - Workflow NAS path failover
  - Get more information
- ONTAP 9 Networking Reference
High availability
- How hardware-assisted takeover works
- How automatic takeover and giveback works
- Automatic takeover commands
- Automatic giveback commands
- Manual takeover commands
- Manual giveback commands
- Testing takeover and giveback
- Commands for monitoring an HA pair
- Commands for enabling and disabling storage failover
SnapMirror Business Continuity
- Introduction
- Planning
- Manage SnapMirror for Business Continuity using System Manager
- Installation and setup using the ONTAP CLI
- Administration
- Troubleshooting
Provision SAN storage
- VMware datastores
- Linux servers
- Windows servers
- Create nested igroup
- Map igroup to multiple LUNs
- SnapMirror Business Continuity overview
Provision NVMe storage
- SUSE Linux
Provision NAS storage
- VMware datastores
- Home directories
- Linux servers
- Export policies
- Windows servers
- Both Windows and Linux
- Secure client access with Kerberos
- Provide client access with name services
- Large file systems with FlexGroups
- Manage directories and files
- Monitor volume usage with ONTAP File System Analytics
- Monitor NFS active clients
- Improve performance for multiple clients
- Enable NAS storage
Provision object storage
- Enable S3 server
- Provision buckets
- Add S3 users and groups
- Manage bucket access
- Manage storage VM access
Manage resources using quotas
- Limit resource use
Maximize security
- Multi-factor authentication
- Control administrator access
- Encrypt stored data (software)
- Encrypt stored data (hardware)
- Diagnose and correct file access issues
Protect data
- Create custom data protection policies
- Configure Snapshot copies
- Recover from Snapshot copies
- Prepare for mirroring and vaulting
- Configure mirrors and vaults
- Configure storage VM disaster recovery
- Serve data from a destination
- Resynchronize a protection relationship
- Restore a volume from an earlier Snapshot copy
- Restore to a new volume
- Reverse resynchronize a protection relationship
- Reactivate a source storage VM
- Resynchronize a destination storage VM
- Back up to the cloud
Extend to the cloud
- Add a connection to the cloud
- Tier data to the cloud
- Tier data to local bucket
- Create tiering object tags
- Enable inactive data reporting
- Back up data using the Cloud Backup Service
- Manage the connections to the Cloud Backup Service
View cluster performance
- Dashboard tour
- Identify hot objects
- Monitor cluster performance using System Manager
- Monitor cluster performance with Unified Manager
- Monitor cluster performance with Cloud Insights
Day-to-day administration
- Search, filter, and sort
- Enable new features
- Manage nodes
- View hardware configurations and determine problems
- View and submit support cases
- Manage MetroCluster sites
- Clone data
- Modify QoS
- Update firmware
- Manage storage
Rest API
- Rest log overview
- Access the REST API log
Get more information
Notices

Mediator not reachable or Mediator quorum status is false

04/30/2021 Contributors Download PDF of this page

Issue:

After executing the snapmirror failover start command, the output for the snapmirror failover show command displays a message indicating that Mediator is not configured.

See Initialize the ONTAP Mediator.

Example:

Cluster1::> snapmirror failover show
Source Destination Error
Path Path Type Status start-time end-time Reason
-------- ----------- -------- --------- ---------- ---------- ----------
vs0:/cg/cg vs1:/cg/cg planned failed 10/1/2020 10/1/2020 SnapMirror failover cannot start because the source-side precheck failed. reason: Mediator not configured.
05:50:42 05:50:43

Cause:

Mediator is not configured or there are network connectivity issues.

Solution:

If Mediator is not configured, you must configure Mediator before you can establish an SM-BC relationship. Fix any network connectivity issues. Make sure Mediator is connected and quorum status is true on both the source and destination site using the snapmirror mediator show command.

Example:

cluster::> snapmirror mediator show
Mediator Address Peer Cluster     Connection Status Quorum Status
---------------- ---------------- ----------------- -------------
10.234.10.143    cluster2         connected         true