On Fri, Mar 16, 2018 at 1:25 PM, Enrico Becchetti <
enrico.becchetti(a)pg.infn.it> wrote:
Dear All,
Does someone had seen that error ? When I run this command from my virtual
machine:
# time dd if=/dev/zero of=enrico.dd bs=4k count=10000000
I don't think it's a very interesting test case for IO performance, but in
any case, it may cause the VM to try to write faster than its thin
provisioned disk can be extended.
A simple workaround would be to change in VDSM the threshold of when it
gets extended and by how much.
For example:
[irs]
volume_utilization_percent = 15
volume_utilization_chunk_mb = 4048
Y.
VM was paused due to kind a storage error/problem. Strange message
because tell about "no storage space error" but ovirt puts virtual machine
in
a paused state.
Inside events from ovirt web interface I see this:
"VM has been paused due to lack of storage space"
but no ERROR found in /var/log/vdsm.log.
My oVirt enviroment 4.2.1 has three hypervivosr with FC storage and before
now
I haven't see any other problem during the normal functioning of the vm ,
it's seem
that this error occurs only when there is massive I/O.
Any ideas ?
Thanks a lot.
Best Regards
Enrico
--
_______________________________________________________________________
Enrico Becchetti Servizio di Calcolo e Reti
Istituto Nazionale di Fisica Nucleare - Sezione di Perugia
Via Pascoli,c/o Dipartimento di Fisica 06123 Perugia (ITALY)
Phone:+39 075 5852777 Mail: Enrico.Becchetti<at>pg.infn.it
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