Available 

The hot spares in the hot spare pool are running and ready to accept data. The hot spares are not currently being written to or read from. 

None. 

In-Use 

This hot spare pool includes hot spares that are being used to replace failed slices in a redundant volume.  

Diagnose how the hot spares are being used. Then, repair the slice in the volume for which the hot spare is being used. 

Broken 

A problem exists with a hot spare or hot spare pool. However, there is no immediate danger of losing data. This status is also displayed if all the hot spares are in use. 

Diagnose how the hot spares are being used or why they are broken. You can add more hot spares to the hot spare pool, if desired.