ovirt-log-collector appears some warning

Latest response 
INFO: Gathering oVirt Engine information...
INFO: Gathering PostgreSQL the oVirt Engine database and log files from localhost...
About to collect information from 2 hypervisors. Continue? (Y/n): 
INFO: Data center 'NCMHDC1' volume chains to be collected by '10.61.151.141'
INFO: Gathering information from selected hypervisors...
INFO: collecting information from 10.61.151.142
INFO: collecting information from 10.61.151.141
WARNING: Host '10.61.151.141' sosreport does not support option vdsm.dump-volume-chains

why appears that message?
sosreport does not support option vdsm.dump-volume-chains

what's mean this?

KangWoo Lee's picture
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Responses

Marcus West's picture Red Hat Guru 2760 points
3 July 2020 3:59 AM

There is a tool used to dump volume chains, which is useful for troubleshooting. You may have an older version of 'sos' or, the 'vdsm-tool' itself. A hypervisor upgrade will likely resolve this.

FYI, tool output example

$ vgs       # (returns a list of volume groups)
$ vdsm-tool  dump-volume-chains <VG-NAME>

   image:    663e810c-4628-45de-9927-c9bd806f5939

             - 3362b237-943d-4a6d-838a-334116b7e108
               status: OK, voltype: LEAF, format: RAW, legality: LEGAL, type: PREALLOCATED, capacity: 63350767616, truesize: 63350767616


   image:    4b10a4b8-a2cd-4628-a794-dbc0bc08eef5

             - b24b5f2a-0b5c-46cc-914e-f3a8d1818480
               status: OK, voltype: LEAF, format: RAW, legality: LEGAL, type: PREALLOCATED, capacity: 1073741824, truesize: 1073741824


   image:    e7a46dce-4e30-413c-9b63-cac9e6abd435

             - c719de34-dd21-49f8-93a9-34d0dce1680d
               status: OK, voltype: LEAF, format: RAW, legality: LEGAL, type: PREALLOCATED, capacity: 134217728, truesize: 134217728
...