Scenario: - 7 SATA disks ada{0..6} - md0 on /tmp - heavy disk activity on ada6; in another scenario, heavy disk activity on all disks - running "systat -vm 1" - typing ":ignore md0" Result: - Before typing ":ignore md0": systat displays drives md0 and ada0..ada5 - After typing ":ignore md0": systat once displays drives ada0..ada6 and then displays only drive md0 Expected result: - Before typing ":ignore md0": systat displays drives md0 and ada0..ada5 - After typing ":ignore md0": systat displays drives ada0..ada6 Notes: - The "ignore" feature seems to be very fragile in many situations. The scenario described is just one where it misbehaves and ultimately displays completely different disks. - The feature seems to be sensitive to dynamic changes in the disk configuration. Adding or removing devices typically garbles the selection.