[collectd] disk plugin report wrong data

[Matus Kocka]

Hello,

please can anybody help me with following issue:

we have collectd disk plugin and sometimes, randomly ones per few days it
reports wrong, extremely high numbers for both reads and writes.

I mean normal numbers are in range up to several 100 MB and suddenly peak
up to hundreds TB appears, which kinda destroys whole graph.

Have anybody similar issue or know the cause or have a solution or just a
hint how to fix this?
Thanks
Matus Kocka
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