For automatically collecting stats like this you might also look into collectd. It has many plugins for different system statistics including one for collecting stats from Ceph daemon admin sockets. There are several ways to collect and view the data from collectd. We are pointing clients at Influxdb and then viewing with Grafana. There are many small tutorials on this combination of tools if you google and the docs for the tools cover how to configure each end. In particular this plugin will get disk utilization counters: https://collectd.org/wiki/index.php/Plugin:Disk This combination is how we are monitoring OSD journal utilization among other things. thanks, Ben On Mon, Jun 20, 2016 at 12:02 PM, David Turner <david.turner@xxxxxxxxxxxxxxxx> wrote: > If you want to watch what a disk is doing while you watch it, use iostat on > the journal device. If you want to see it's patterns at all times of the > day, use sar. Neither of these are ceph specific commands, just Linux tools > that can watch your disk utilization, speeds, etc (among other things. Both > tools are well documented and easy to use. > ________________________________ > From: ceph-users [ceph-users-bounces@xxxxxxxxxxxxxx] on behalf of EP Komarla > [Ep.Komarla@xxxxxxxxxxxxxxx] > Sent: Friday, June 17, 2016 5:13 PM > To: ceph-users@xxxxxxxxxxxxxx > Subject: Ceph OSD journal utilization > > Hi, > > > > I am looking for a way to monitor the utilization of OSD journals – by > observing the utilization pattern over time, I can determine if I have over > provisioned them or not. Is there a way to do this? > > > > When I googled on this topic, I saw one similar request about 4 years back. > I am wondering if there is some traction on this topic since then. > > > > Thanks a lot. > > > > - epk > > > Legal Disclaimer: > The information contained in this message may be privileged and > confidential. It is intended to be read only by the individual or entity to > whom it is addressed or by their designee. If the reader of this message is > not the intended recipient, you are on notice that any distribution of this > message, in any form, is strictly prohibited. If you have received this > message in error, please immediately notify the sender and delete or destroy > any copy of this message! > > _______________________________________________ > ceph-users mailing list > ceph-users@xxxxxxxxxxxxxx > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
 |