Datastore creation wizard is stuck while loading for the storage devices
search cancel

Datastore creation wizard is stuck while loading for the storage devices

book

Article ID: 404573

calendar_today

Updated On:

Products

VMware vSphere ESXi

Issue/Introduction

Symptoms:

  • While creating the Datastore from vCenter UI, the "Select Storage" page takes a longer time to populate the storage devices. 

This is observed in vCenter UI > Cluster > Storage > New datastore > Name and device selection

  • Creating datastore from host UI may also report slowness.

  • Performance has deteriorated on storage devices.

In var/run/log/vmkernel.log - 2025-07-14T06:26:11.591Z cpu63:2098455)WARNING: ScsiDeviceIO: 1513: Device naa.################################ performance has deteriorated. I/O latency increased from average value of 14896 microseconds to 620505 microseconds.

  •  You may observe heartbeat timeouts and lost access to volume events when there are any I/O intensive scheduled tasks which may be degrading I/O performance to the point that datastore heartbeat I/Os time out

In /var/run/vobd.log - 2025-07-14T07:53:00.512Z: [vmfsCorrelator] 2710262867us: [vob.vmfs.heartbeat.timedout] ########-########-####-########## DS1.

In var/run/log/hostd.log - 2025-07-14T07:51:36.102Z info hostd[2103521] [Originator@6876 sub=Vimsvc.ha-eventmgr] Event 55 : Lost access to volume ########-########-####-##########(DS1) due to connectivity issues. Recovery attempt is in progress and outcome will be reported shortly.

  • You may observed /O aborts and state in doubt events.

In var/run/log/vmkernel.log 2025-07-14T08:38:20.385Z cpu24:2098437)NMP: nmp_ThrottleLogForDevice:3875: H:0x5 D:0x0 P:0x0 . Act:EVAL. cmdId.initiator=0x######## CmdSN 0x11ce
2025-07-14T08:38:20.385Z cpu24:2098437)WARNING: NMP: nmp_DeviceRequestFastDeviceProbe:237: NMP device "naa.################################" state in doubt;requested fast path state update...

Environment

VMware vSphere ESXi 7.x
VMware vSphere ESXi 8.x

Cause

The Add storage wizard on vCenter UI queries all the storage to see the devices that are available. Slowness behavior is observed when there are storage I/O errors or high load on the storage array and this can lead to delay in populating the storage devices.

 

Resolution

Engage the storage vendor to further investigate the issue.

Additional Information

Powered by Wolken Software