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A global flag in lvmetad indicates it has been disabled. Other flags indicate the reason it was disabled. These flags can be queried using get_global_info. The lvmetactl debugging utility can set and clear the disabled flag in lvmetad. Nothing else sets the disabled flag yet. Commands will check these flags after connecting to lvmetad. If the disabled flag is set, the command will not use the lvmetad cache, but revert to disk scanning. To test this feature: $ lvmetactl get_global_info response = "OK" global_invalid = 0 global_disable = 0 disable_reason = "none" token = "filter:3041577944" $ vgs (should report VGs from lvmetad) $ lvmetactl set_global_disable 1 $ lvmetactl get_global_info response = "OK" global_invalid = 0 global_disable = 1 disable_reason = "DIRECT" token = "filter:3041577944" $ vgs WARNING: Not using lvmetad because the disable flag was set directly. (should report VGs without contacting lvmetad) $ lvmetactl set_global_disable 0 $ vgs (should report VGs from lvmetad)