If a Device Is Unlisted/UNCLAIMED in ioscan or Not Displayed in SCSI Adapters Window

If ioscan (HP-UX server) does not list a device connected to the hub or shows the status of the device as UNCLAIMED or NO H/W, or if the SCSI Adapters window (HP NetServer) does not display a device connected to the hub, the problem may be with the device, the hub, the host, or the connections between them. Find the combination of symptoms below that best describes the situation, then attempt the solution. When more than one solution is possible, the most likely is listed first. The hub does not appear in ioscan output or the SCSI Adapters window because it does not have a hardware address.

Symptom

Cause/Solution

 

 

 

The Port LED for the host or the

–

The connection between the device or host and the

device is off, and ioscan does not

 

hub is faulty. See If a Port LED Is Off on page 76.

list the device.

–

The host’s FC adapter is faulty. Replace the adapter.

 

 

–

The FC device is faulty. Replace the device.

 

 

The Port LED is on, and ioscan

There is a duplicate hardware address on the FC-AL

does not list the device.

loop. Verify that all devices on the loop have unique IDs,

 

then reset the hub.

 

 

The Port LED is on, and ioscan

The software driver is missing on the host. Replace the

Class is “UNKNOWN.”

device driver file.

 

 

 

The Port LED is on, and ioscan

–

The device has a duplicate address with another

shows the S/W State as

 

device on the loop. Change the address of one of the

“UNCLAIMED”or “NO H/W.”

 

devices to a unique address. (The device may need to be

 

 

powered off and on to reset the address.)

 

– The software driver for the device is incorrect on the

 

 

host. Replace the device driver file on the system.

 

–

The device is faulty. Troubleshoot the device using the

 

 

instructions that came with the device. Be sure to check

 

 

the fiber optic transmit or receiving port on the device.

 

 

The hub Fault LED is on, and

The hub is faulty. Replace the hub.

ioscan does not list the device.

 

 

 

 

 

Troubleshooting

If a Device Is Unlisted/UNCLAIMED in ioscan or Not Displayed in SCSI Adapters Window

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