Preparation for replacing HBAs

To ensure that the acpiphp module has been loaded:

Before you replace HBAs, perform the following procedure to ensure that the acpiphp module has been loaded.

1. Execute the lsmod OS command.

   # /sbin/lsmod | grep acpiphp
   acpiphp              58713   0

   If the acpiphp module has been loaded, replace the HBAs as described in Procedure for replacing HBAs. If the acpiphp module has not been loaded, continue to step 2.

2. Create the acpiphp.modules file.

   First, execute the following command:

   # vi /etc/sysconfig/modules/acpiphp.modules

   Next, edit the acpiphp.modules file as follows:

   #/bin/bash
   /sbin/modprobe acpiphp

   Save the changes to the file, and then use the chmod OS command to set execution permissions as follows:

   # chmod 755 /etc/sysconfig/modules/acpiphp.modules

   Finally, after the chmod command has been executed, confirm that the execution permissions have been set as indicated by the underlined portion below.

   # ls -l /etc/sysconfig/modules/acpiphp.modules
   -rwxr-xr-x 1 root root 35 mm dd hh:mm /etc/sysconfig/modules/acpiphp.modules

3. Load the acpiphp module.

   Execute the acpiphp.modules file you created in step 2.

   # /etc/sysconfig/modules/acpiphp.modules

   After the above command has been executed, confirm that the acpiphp module has been loaded.

   # /sbin/lsmod | grep acpiphp
   acpiphp              58713   0