Mpio DMG Manuel de service télécharger pdf (Page 59)

2. Move the host adapter to a different slot.

If the problem persists with the host adapter, replace it with a new host adapter.

3. Ensure that the PCIe adapter is installed in a slot configured as x4 or x8.

4. Zap the PRAM (Command+Option+P+R) at boot. Allow it to chime three times.

5. Disconnect all Fibre Channel devices from the host adapter and reboot the computer.

• If this corrects the problem, check the Fibre Channel cable, SFPs, or Fibre Channel target

devices as described in “Fibre Channel device is faulty” on page 58.

• If the computer does not boot, install the host adapter in a different computer.

• If the host adapter works in the new computer, contact HP and report this as a possible inter-

operability issue between the host adapter and the computer.

Mac OS X stops and displays a flashing question mark

Problem: With the Celerity FC host adapter installed, the operating system stops and displays a

flashing question mark, indicating that the hardware cannot find an operating system from which to

boot.

To troubleshoot this problem, perform the following steps:

1. Boot the computer from a CD or some other source.

2. Check the System Preferences field to ensure that the startup disk is defined as Startup disks.

NOTE:

The Celerity FC host adapter does

not

support booting from an external Fibre Channel drive.

Server freezes or hangs

Problem: The server freezes or hangs.

To troubleshoot this problem, disconnect all Fibre Channel devices, and then reboot the computer.

• If the server continues to hang:

1. Remove the nonessential PCI cards to determine if there is a PCI bus conflict.

2. Remove the host adapter and test it in a different model computer.

3. If the problem persists with the host adapter, replace it with a new host adapter.

• If the server no longer hangs:

1. Verify the cable integrity:

• Check the cable connections.

• Inspect the SFPs for physical damage.

• Replace the SFPs if necessary.

• Inspect the cable ends for dirt or abrasions, which can affect communication.

2. Boot the server and use the ATTO Connection Tool to:

• Set the connection mode to PTP.

• Set the data rate to the speed of your target device.

By default, the Celerity FC host adapter autonegotiates these parameters.

Mac OS X Fibre Channel connectivity to the HP StorageWorks Enterprise Virtual Array storage system

configuration guide 59

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Mpio DMG Manuel de service Page 59