On Sat, Mar 28, 2020 at 8:39 AM Strahil Nikolov <hunter86_bg@yahoo.com> wrote:

On March 28, 2020 3:21:45 AM GMT+02:00, Gianluca Cecchi <gianluca.cecchi@gmail.com> wrote:

[snip]

>Actually it only happened with empty disk (thin provisioned) and sudden
>high I/O during the initial phase of install of the OS; it didn't
>happened
>then during normal operaton (even with 600MB/s of throughput).

[snip]

Hi Gianluca,

Is it happening to machines with preallocated disks or on machines with thin disks ?

Best Regards,
Strahil Nikolov

thin provisioned. But as I have tro create many VMs with 120Gb of disk size of which probably only a part during time will be allocated, it would be unfeasible to make them all preallocated. I learned that thin is not good for block based storage domains and heavy I/O, but I would hope that it is not the same with file based storage domains...

Thanks,

Gianluca