Re: [libvirt-users] API for retrieving resource metrics from VMs?
On 01/04/2016 11:59 AM, Vasiliy Tolstov wrote:
2016-01-04 16:33 GMT+03:00 BYEONG-GI KIM
<kimbyeonggi(a)gmail.com>:
> hank you for the reply!
>
> I used the term "disk usage" as what you mentioned first; the information
> which can be retrieved via 'df' command on linux system...
>
> I'll then have to consider different approach to do what I want.
>
> Anyway, thanks again for your great help.
>
> Best regards
You can install under guest vm qemu-guest-agent and get info from it.
Another alternative would be to use the libguestfs tools to examine the
disk in read-only mode (be sure not to use read/write mode on an image
that's currently in use by its guest!). This would *not* be efficient to
do very frequently, but would be okay if done occasionally.