Troubleshooting

This topic describes the known issues and workarounds of IBM Storage Scale Erasure Code Edition.

Monitoring the overall health
This topic describes different methods to monitor and troubleshoot IBM Storage Scale Erasure Code Edition.
What to do if you see degraded performance over NSD protocol
This topic describes the issues relating to degraded performance over NSD protocol.
What to do if you see degraded performance over CES with NFS and/or SMB
This topic describes the procedure to troubleshoot any issues relating to degraded performance over CES with NFS or SMB.
Monitoring NVMe Devices
You can monitor the health of any NVMe drives in your system using the mmlsnvmestatus command. You can monitor the status of all devices or a specific device, specified by serial number.
Monitoring the endurance of SSD Devices
You can monitor the endurance of the SSD drives in your system by using the mmhealth command.
What to do if the disk is not in the recovery group after creation or adding node
This topic describes what needs to be done if the disk is not in the recovery group after creating the recovery group or adding a new node.
What to do if the installation toolkit online upgrade process is broken with an error
This topic describes how to check the cluster state when the online upgrade process breaks with an error of the installation toolkit.
What to do if creating a recovery group or adding a node command fails
This topic describes the steps that you need to take when the command for creating a recovery group or adding a node fails.
What to do if a recovery group stops service when a disk hangs because of hardware failure
The topic describes the steps that need to be taken if a recovery group stops service. A recovery group stops service when a disk hangs because of hardware failure.