Use the host card diagnostics to determine these statuses of the host card.
The boot level diagnostic runs automatically and compares writes and reads to one or more registers to the I/O??chip of the host card.
Diagnostic results include these status:
| Status | Explanation |
| Optimal | All port or initiators can transport I/O. |
| Degraded | One or more ports or initiators cannot transport I/O but, at least one port or initiator can connect and transport I/O. |
| Failed | Host card cannot transport I/O on any port or initiator. |
In addition, boot level diagnostics might return these messages:
| New Host Interface Card | A previously empty host interface slot has been filled. |
| Removed Host Interface Card | A previously populated host interface slot is now empty. |
| Host Card Replaced by Card with Same Board ID | An existing host card is replaced with a different host card that has the same board ID. |
| Host Card Replaced by Card with Different Board ID | An existing host card is replaced with a different host card that has a different board ID. |
User-initiated diagnostics are specific to the type of host card: 2Gb FC, 4Gb FC, IB, iSCSI and others.
Diagnostic results include these status:
| Status | Explanation |
| Optimal | All port or initiators can transport I/O. |
| Degraded | One or more ports or initiators cannot transport I/O but, at least one port or initiator can connect and transport I/O. |
| Failed | Host card cannot transport I/O on any port or initiator. |
Diagnostic results are stored until diagnostics are run again.
If you try to retrieve the diagnostic results before they are complete, the remaining time for completion appears.
Cancelling the Current Host Card Diagnostics
Start Physical Disk Channel Fault Isolation Diagnostics
Save Physical Disk Channel Fault Isolation Status