Emulex LP1005DC-CM2 Manual do Utilizador descarregar pdf (Página 68)

Driver for Linux - Configuration Section Page 62

• <L> represents the LUN number of the newly added LUN.

To dynamically add LUNs and targets with lun_skip enabled:

1. Log on as 'root'.

2. Type:

# echo "scsi remove-single-device <H> 0 <T> <L>" >/proc/scsi/scsi

3. Type:

# echo "scsi add-single-device <H> 0 <T> <L>" >/proc/scsi/scsi

Where:

• <H> represents the host ID of the host bus adapter

• <T> represents the SCSI ID of the storage array

• <L> represents the LUN number of the newly added LUN

Understand Device Numbering

There are two levels of device numbering. The first level of device numbering is the driver instance

number. This is the number that is displayed in log messages to syslog or the console, such as lpfcX.

Typically the driver instance number is equal to the adapter number.

The second level of numbering is the SCSI device number. This number is assigned by the system for

each SCSI target it detects. It is typically in the special files created to access each SCSI device, for

example, /dev/sda through /dev/sdz and /dev/sdaa through /dev/sdax etc. Linux supports a total of 128

SCSI devices per system. Thus, a host could support disk devices from /dev/sda through /dev/sddx.

Once these numbers are assigned, they will stay the same between reboots unless there has been

hardware changes to the system or Fibre Channel network, or some devices are offline or not ready.

Download PCI Configuration

To download the PCI configuration data, follow these steps.

1. Start the lputil utility.

2. From the lputil Main menu, select 3, Firmware Maintenance.The Firmware Maintenance menu is

displayed.

3. If you have more than one adapter in your system, select the adapter for which you want to

download a PCI configuration.

4. Select 5, Load PCI Configuration File. PCI configuration data is contained in .cfl files, which can

be used across any supported platform.

5. Enter the region in flash ROM to download the data, and press <Enter>. You can download one

of three data sets for the PCI configuration registers.

• Default PCI configuration region

Note: The host number is the SCSI # as seen in /proc/scsi/scsi.The host # and lpfc # in the

previous step may not be identical. This is because lpfc0 may not be the first SCSI

host in the system.

Note: The host number is the SCSI # as seen in /proc/scsi/scsi.The host # and lpfc # in the

previous step may not be identical. This is because lpfc0 may not be the first SCSI

host in the system.

Note: Select this option only if you are familiar with PCI configuration registers.

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Emulex LP1005DC-CM2 Manual do Utilizador Página 68