[ovirt-users] IOPS stats/reports from all hosts to storage

Yaniv Kaul ykaul at redhat.com
Thu Oct 5 20:05:02 UTC 2017


On Oct 5, 2017 10:53 AM, "Karli Sjöberg" <karli at inparadise.se> wrote:

On tor, 2017-10-05 at 10:10 +0200, Neil wrote:
> Haha it is rather crappy.
>
> It was very cheap in comparison to Dell's and HP's etc at the time,
> and it's over 6 years old now so it's done quite well considering the
> price.
>
> The brand is Cipherwave which I think is a rebrand of some other
> brand, very basic GUI and features.
>
> So is there no way to get data domain IOPS from the oVirt side?

Not that I know. As a nice integrated feature, oVirt is rather crappy
at that :) Getting IOPS and bandwidth would, I guess, require you to
install like collectd and send to a graphite or such server, or
simpler, just install e.g. bwm-ng on a host to get a quick snapshot.


4.1 and above install collectd already. You need to configure it to send
metrics to yor graphite.
Y.


/K

>
> Thanks!
>
>
>
> On Thu, Oct 5, 2017 at 9:53 AM, Karli Sjöberg <karli at inparadise.se>
> wrote:
> > On tor, 2017-10-05 at 09:45 +0200, Neil wrote:
> > > Hi Karli,
> > >
> > > I was hoping that too, but it seems the SAN doesn't have these
> > > features.
> >
> > Wow, that´s kind of a crappy storage, no offense. What´s the brand,
> > so
> > we can stay clear of it? :)
> >
> > /K
> >
> > >
> > > There is only the 4 oVirt hosts connected to it via 8GB FC.
> > >
> > > I see oVirt has Storage QOS, but how do we set Storage QOS
> > without
> > > knowing the maximum storage limits? Perhaps I'm misunderstood
> > this...
> > >
> > > Thanks.
> > >
> > > Regards.
> > >
> > > Neil Wilson.
> > >
> > >
> > >
> > >
> > >
> > >
> > > On Thu, Oct 5, 2017 at 9:32 AM, Karli Sjöberg <karli at inparadise.s
> > e>
> > > wrote:
> > > > On tor, 2017-10-05 at 08:27 +0200, Neil wrote:
> > > > > Hi guys,
> > > > >
> > > > > I'm running FC storage with 4 hosts on oVirt 3.6 and we've
> > been
> > > > > having some IOPS issues recently and the SAN provider has
> > asked
> > > > me to
> > > > > provide them with the following info...
> > > > >
> > > > > Datastore Stripe Size
> > > > > Default VM Disk Stripe Size
> > > > > Average IO Size
> > > > > Average THROUGHPUT (MB/s)
> > > > > Average IOPS
> > > > > Maximum IOPS
> > > > > Read/Write Percentage of IO
> > > > > Datastore Average Latency
> > > > > VM Disk Average Latency
> > > > >
> > > > > All of this is from across all hosts and VM's to the storage
> > > > domain.
> > > > > Is there any way to get this kind of info from oVirt? I've
> > been
> > > > > looking at oVirt-reports but I don't see much as far as
> > > > IO/throughput
> > > > > reporting goes.
> > > > >
> > > > > Apologies if I've missed something obvious.
> > > >
> > > > Just a thought but, isn´t there any way of getting these
> > numbers
> > > > from
> > > > the storage instead of looking at it from the virtualization?
> > Are
> > > > there
> > > > _a lot_ of other systems connected to it?
> > > >
> > > > /K
> > > >
> > > > >
> > > > > Thanks.
> > > > >
> > > > > Regards.
> > > > >
> > > > > Neil Wilson.
> > > > > _______________________________________________
> > > > > Users mailing list
> > > > > Users at ovirt.org
> > > > > http://lists.ovirt.org/mailman/listinfo/users
> > > >
> >
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