Scenario 3) You could have hit the limit of RAID cache briefly, you could have hit the bandwidth limit of your controller briefly, or again, you could have a failing disk. In this scenario I would test each disk in the array individually.
Scenario 3) You could have hit the limit of RAID cache briefly, you could have hit the bandwidth limit of your controller briefly, or again, you could have a failing disk. In this scenario I would test each disk in the array individually.