ADIC SNC 5100, Scalar 1000 manual Improper Device Type

SNC 5100

Improper Device Type

Step 1. Check to be sure that all the devices attached to a single SCSI bus are of the same type.

Only low voltage differential devices must be attached to low voltage differential SCSI channels.

When a mix of Ultra2/3 SCSI and Ultra SCSI devices are connected to a single bus, the bus will run at the Ultra SCSI speed. Because the bus will auto-adjust to the slowest speed, it is not recommended that you run both Ultra2/3 SCSI and Ultra SCSI devices on the same bus.

Caution

If in this procedure you determine that you need to replace a SCSI device, all I/O to the SNC 5100 must be stopped and it must be turned off.

Step 2. Replace any improper SCSI device with a proper device.

Step 3. Reconnect the SCSI cable.

Step 4. If you do not have to replace an improper device, go to "Examine SCSI Cables".

If you replaced any devices, reboot the SNC 5100.

Step 5. After the SNC 5100 finishes booting, enter the scsiShow command from the service terminal.

For more information, see the "scsiShow" command on page 160.

Step 6. Compare the list of attached devices with the physical devices.

If not all of the physical devices are shown, go to "Examine SCSI Cables".

If all of the physical devices are shown, go to "SCSI Health Check".

SCSI Channel MAP 55

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