Other than [check_md_raid](https://exchange.icinga.com/exchange/check_md_raid) and [check_md_raid updated](https://exchange.icinga.com/jasem/check_md_raid updated/) the data is not taken from /proc/mdstat which is less machine readable. Also not all RAIDs are checked simulataneously but only one specific. This gives the possibility to query some "performance" data and later add more granular checks.