Datastore went into unresponsive mode due to corruption on LUN
Applies to
- Ontap
- ESXi
- FC
Issue
- ESXi host and VMs are impacted as datastore went into non-responsive mode.
- Snapshots are utilizing more space on the affected volume and volume utilization is 98%.
- Volume Snapshot Reserve Space Full and 100% breached events are observed.
- Affected volume has fractional reserve set to 100%.
- It is recommended to set fractional reserve to 0% for thin volumes.
- Post modifying the fractional reserve to 0% for the affected volume host is still not able to see/access any datastore.
- Attempted to run unmap on the host end to manually trigger scsi unmaps, however the datastore is not recognized.
- LUN and volume are showing online on Ontap end.