Am Mo., 8. Okt. 2018 um 23:34 Uhr schrieb Alfredo Deza <adeza@xxxxxxxxxx>: > > On Mon, Oct 8, 2018 at 5:04 PM Paul Emmerich <paul.emmerich@xxxxxxxx> wrote: > > > > ceph-volume unfortunately doesn't handle completely hanging IOs too > > well compared to ceph-disk. > > Not sure I follow, would you mind expanding on what you mean by > "ceph-volume unfortunately doesn't handle completely hanging IOs" ? > > ceph-volume just provisions the OSD, nothing else. If LVM is hanging, > there is nothing we could do there, just like ceph-disk wouldn't be > able to do anything if the partitioning > tool would hang. Another follow-up for this since I ran into issues with ceph-volume again a few times in the last weeks: I've opened issues for the main problems that we are seeing since using ceph-volume http://tracker.ceph.com/issues/37490 http://tracker.ceph.com/issues/37487 http://tracker.ceph.com/issues/37492 The summary is that most operations need to access *all* disks and that will cause problems if one of them is misbehaving. ceph-disk didn't have this problem (but a lot of other problems, overall we are more happy with ceph-volume) Paul > > > > > It needs to read actual data from each > > disk and it'll just hang completely if any of the disks doesn't > > respond. > > > > The low-level command to get the information from LVM is: > > > > lvs -o lv_tags > > > > this allows you to map a LV to an OSD id. > > > > > > Paul > > Am Mo., 8. Okt. 2018 um 12:09 Uhr schrieb Kevin Olbrich <ko@xxxxxxx>: > > > > > > Hi! > > > > > > Yes, thank you. At least on one node this works, the other node just freezes but this might by caused by a bad disk that I try to find. > > > > > > Kevin > > > > > > Am Mo., 8. Okt. 2018 um 12:07 Uhr schrieb Wido den Hollander <wido@xxxxxxxx>: > > >> > > >> Hi, > > >> > > >> $ ceph-volume lvm list > > >> > > >> Does that work for you? > > >> > > >> Wido > > >> > > >> On 10/08/2018 12:01 PM, Kevin Olbrich wrote: > > >> > Hi! > > >> > > > >> > Is there an easy way to find raw disks (eg. sdd/sdd1) by OSD id? > > >> > Before I migrated from filestore with simple-mode to bluestore with lvm, > > >> > I was able to find the raw disk with "df". > > >> > Now, I need to go from LVM LV to PV to disk every time I need to > > >> > check/smartctl a disk. > > >> > > > >> > Kevin > > >> > > > >> > > > >> > _______________________________________________ > > >> > 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 > > > > > > > > -- > > Paul Emmerich > > > > Looking for help with your Ceph cluster? Contact us at https://croit.io > > > > croit GmbH > > Freseniusstr. 31h > > 81247 München > > www.croit.io > > Tel: +49 89 1896585 90 > > _______________________________________________ > > 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
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