Taking long time to detect LUN while add storage in vSphere 5.5

[rsk007]

Need an assistance in below:

ESXi 5.5 Express Patch 11 (Build 5230635) & VMAX storage. (No SRM configured)

Unable to detect the LUN's while add storage as below:

It take minimum 20 minutes to detect LUN's.

However, if I disable the VMFS.UnresolvedVolumeLiveCheck on ESXi (Advance Setting > VMFS > VMFS.UnresolvedVolumeLiveCheck) able to see the luns quickly. But disabling is not suggested by VMware.

Need a recommended workaround.

Suggestion please..

Thank you.

[RajeevVCP4]

Hi Santosh,

Check vmkernel log of any affected host and find this keyword (Long VMFS rsv time)

If you are able to find then try this KB.

VMkernel logs report the message: Long VMFS3 rsv time (1025299) | VMware KB

Or any storage related changes in environment check this keyword (esx.problem.scsi.device.state.permanentloss)