This header section in the zpool status output contains the following fields, some of which are only displayed for pools exhibiting problems:
The name of the pool.
The current health of the pool. This information refers only to the ability of the pool to provide the necessary replication level.
A description of what is wrong with the pool. This field is omitted if no problems are found.
A recommended action for repairing the errors. This field is an abbreviated form directing the user to one of the following sections. This field is omitted if no problems are found.
A reference to a knowledge article containing detailed repair information. Online articles are updated more often than this guide can be updated, and should always be referenced for the most up-to-date repair procedures. This field is omitted if no problems are found.
Identifies the current status of a scrub operation, which might include the date and time that the last scrub was completed, a scrub in progress, or if no scrubbing was requested.
Identifies known data errors or the absence of known data errors.