What are the NetApp Element Software Garbage Collection (GC) Events?
Applies to
NetApp Element Software
Answer
The following are the Element Software Garbage Collection Events (gcEvents) that can be seen in SolidFire Active IQ and the Element UI:
- GCStarted = Garbage Collection has been initiated. This will automatically occur every hour at the top of the hour.
- GC Cluster Coordination Complete = All participating Slice and Block Services are confirmed by Garbage Collection and GC is ready. This message should immediately follow GCStarted.
- GCCompleted = Garbage Collection complete and you should see one of these events for every participating block service (BS) that is noted in the GCStarted event.
- GCStartDeferred – GC already in progress* = GC start was deferred due to GC already running
- GCAborted = any reason GC failed to start. Information on the cause of the abort will be found in the Details section of the Active IQ Events and Element UI Event Log.
- GCFailed - Garbage collection started but failed to complete. Generally, this can be seen with intermittent network-related timeouts such as issues found in the following KB: Intermittent unresponsiveService is reported
*Note – GCStartDeferred is introduced in Element Software 12.7. Prior versions would report a GCAborted Event if the GC was already running when the next GC start initiated.
Additional Information
Should Garbage Collection fail to complete in 12 or more hours, a support case will be created for NetApp Support to investigate.