Space utilization on thin-provisioned device exceeded configured threshold

Products

• VMware vSphere ESXi

Issue/Introduction

vCenter alarm triggered:

Space utilization on thin-provisioned device <naa.xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx> exceeded configured threshold. Affected datastores (if any): <Datastore Name>.


vmkernel.log 
2019-02-01T03:05:56.091Z cpu59:33773)NMP: nmp_ThrottleLogForDevice:3333: Cmd 0x8a (0x43be1e8451c0, 81679675) to dev "naa.xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx" on path "vmhba65:C0:T0:L22" Failed: H:0x0 D:0x2 P:0x0 Valid sense data: 0x6 0x38 0x7. Act:NONE 
2019-02-01T03:05:56.091Z cpu59:33773)WARNING: ScsiDeviceIO: 2420: Space utilization on thin-provisioned device naa.xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx exceeded configured threshold 


Note: The preceding log excerpts are only examples. Date, time, and environmental variables may vary depending on your environment.

Environment

VMware vSphere ESXi 5.x
VMware vSphere ESXi 6.x

Cause

This is not a storage connectivity issue but a notification from the storage.

HPE 3PAR VMware ESX/ESXi Implementation Guide, page 38, gives the detailed information about this message for out-of-space condition.

   Warning limit reached a soft threshold error asc/q: 0x38/0x7 is sent and ESXI continue to write.
 
     A hard permanent error asc/q: 0x27/0x7 is sent when the disk is out of space.  The ESXi responds by stunning the VM.

Resolution

Check the capacity usage and the limit setting from the storage side.

Consult with the storage vendor.