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Applies to

MetroCluster
MC_DC
Windows

Issue

After double-clicking MCDC_START.jar, there is a prompt asking which application should be used to open the file.

Cause

Java is either not installed or .jar files are not properly associated with Java. Install Java or check the file association is correct.

Solution

Re-run the JDK installer and, select repair and install the feature JAR Files Association under OpenJDK Runtime.

Applies to

MetroCluster
MC_DC

Issue

The collect.dcl log reports " collection attempt timed out "

Cause

Network device is not reachable.

Solution

1. Check that the device can be reached directly from the client hosting MCDC. If ping works, try telnet or ssh depending on the device type.
2. Check that the address of the device is correct in MCDC (if a switch or bridge)
3. If a controller reports this error, ensure that the controller name is resolvable by the host.

Applies to

MetroCluster
metrocluster check
connection
ONTAP 9

Description

Applies to

MetroCluster FC
Brocade
Cisco

Description

To avoid performance issues, all initiators into the MetroCluster storage backend have to run at the same speed. This article describes how to identify and address this issue.

Applies to

MetroCluster FC
Fabric

Description

This article describes supported adapter setups in MetroCluster FC configuration.

Applies to

ONTAP 9
MetroCluster

Description

This article describes how to troubleshoot cross-connected shelf modules.

Applies to

ONTAP 9
MetroCluster

Description

This article describes how to address and identify systems that connect to the each fabric of a MetroCluster using the same ASIC.

Applies to

• MetroCluster
• Cisco switches
• ISL down

Description

This article is not intended as a comprehensive troubleshooting guide, but as a tool to assist in ISL link troubleshooting. For further assistance please engage NetApp Technical Support via a Technical Support Case.

• Whenever troubleshooting ISL link a number of factors should be considered:
• What is the distance of the ISL links?
• Have the ISL ports been configured correctly as per the installation guide?
• What type of ISL is being used? Direct Link? DWDM?
• What additional components are in the link? Are there any patch panels?
• What is the health of the components on the link?
  

Applies to

• MetroCluster
• ONTAP 9.3P8 and earlier
• ONTAP 9.4P2 and earlier

Issue

• A risk called "A Metrocluster Kernel table is not populated correctly." is displayed in ActiveIQ.
• METROCLUSTER AUSO TRIGGER FAILED Autosupport message received during ONTAP upgrade

Applies to

• MetroCluster
• metrocluster check
• Node errors

Description

MetroCluster check reports errors on the node object:

ClusterA::> metrocluster check show
Last Checked On: mm/dd/yyyy hh:mm:ss
Component           Result
------------------- ---------
nodes               warning
lifs                ok
config-replication  ok
aggregates          ok
clusters            ok
5 entries were displayed.