Capacity disk failure on vSAN OSA disk group

Products

• VMware vSAN

Issue/Introduction

Capacity disk is not manageable.

 

Disk is not listed when running either of these commands on an SSH session on the ESXi host.

 

esxcli vsan storage list

 

vdq -Hi

 

Environment

vSAN OSA (all versions)

Cause

The disk has encountered an error. Check the logs on the ESXi host, and look for messages like the below.

 

/var/run/log/vmkernel.log:

 

20##-##-##T##:##:##.###Z Wa(180) vmkwarning: cpu8:2097609)WARNING: HPP: HppScsiThrottleLogForDevice:585: Cmd 0x88 (0x45c169e30740, 0) to dev "naa.################" on path "vmhba1:C0:T1:L0" Failed:

 

2026-07-08T12:43:29.302Z In(182) vmkernel: cpu8:2097609)ScsiDeviceIO: 4672: Cmd(0x45c169e30740) 0x88, CmdSN 0x924c8134 from world 0 to dev "naa.################" failed H:0x7 D:0x0 P:0x0

 

The SCSI sense code H:0x7 indicates a storage initiator error, and Cmd 0x88 is a read operation.

 

 

/var/run/log/vmkernel.log:

20##-##-##T##:##:##.###Z In(182) vmkernel: cpu3:2097611)ScsiDeviceIO: 4672: Cmd(0x45ba02273240) 0x88, CmdSN 0x2 from world 2177101 to dev "naa.################" failed H:0x0 D:0x2 P:0x0 Valid sense data: 0x3 0x31 0x0 Medium Error, LBA: 7501476527

 

The sense data 0x3 0x31 indicate a medium error that needs to be investigated from the hardware level.

Resolution

Engage hardware vendor to investigate the disk from that side.

 

If no errors are seen on the hardware management tool (iLO, iDRAC, etc.) schedule a cold reboot of the ESXi host, which will reinitialize all disks.