Check MiniCylinderPacks

/* Identify mini cylinder packs */
/*
5141 Mini-Cylinder Pack freed cylinders in anticipation of their use
5142 Mini-Cylinder Pack freed cylinders while tasks were waiting for them
5143 Mini-Cylinder Pack was not able to free any cylinders
5166 Defragment of cylinder[s] occurred
*/
select thedate
,sum (case when text like '5141%' then 1
else 0
end) as E5141_Anticipation
,sum (case when text like '5142%' then 1
else 0
end) as E5142_Tasks_Waiting
,sum (case when text like '5143%' then 1
else 0
end) as E5143
from dbc.software_event_log
where text like '%mini-cylinder%' and text like '514%'
group by 1
order by 1 desc;