| Field | Internal name | Type | Warn | Crit | Info |
|---|---|---|---|---|---|
| Average device IO time | svctm | gauge | Average time an I/O takes on the block device | ||
| Average IO Wait time | avgwait | gauge | Average wait time for an I/O from request start to finish (includes queue times et al) | ||
| Average Read IO Wait time | avgrdwait | gauge | Average wait time for a read I/O from request start to finish (includes queue times et al) | ||
| Average Write IO Wait time | avgwrwait | gauge | Average wait time for a write I/O from request start to finish (includes queue times et al) |