Please provide your feedback in this short Flings' survey.

Comment thread started by Nelson F. on HCIBench

Full comments
Mar 09, 2020


We have seen some weird behavior when running HCI bench + vdbench.
To describe the situation:
We deploy 8 VMs in total , 2 per host. On the vdbench stats we can see that 6 out of 8 VMs are doing 99% of the IO. 2 VMs are running at very low load.
Checked the logs and stats of those 2 VMs and no errors. Java process is running on those 2 VMs.
This has been reproduced by us and some of our customers on vSAN and non-vSAN storages.
Some of our customers are pointing this issue being related with vSAN but I am seeing the same when using other storage.

Are you aware or does anyone reported something like this to you ?

Thanks !

Mar 09, 2020

I haven't heard anything like this reported.

1. What version of vdbench are you running?
2. Can you run a similar test using FIO, and does it produce the same pattern?

Also can you email us the log files (/opt/automation/logs) at

Mar 24, 2020


We are using the latest vdbench version 50407.
I also sent the log files by email, could you just confirm you received them ?

Thank you