HP XP P9500 Storage - Manual (Page 318)

• Add devices to or remove devices from the list of devices to be managed
by HDLM
Replacing HBAs
You can replace HBAs without stopping any applications when all of the
following conditions are satisfied:
• The OS on the host is either of the following:
¢
Red Hat Enterprise Linux 5
¢
Red Hat Enterprise Linux 6
• The host allows HBA replacement, and the new HBAs are of the same
type as the HBAs you replace.
• Multiple HBAs are used, and the paths that pass through these HBAs are
connected to the same LU.
• Multiple paths to the LU are active.
For details on how to replace HBAs, see Procedure for replacing HBAs on page
4-23 . Note, however, that in a BladeSymphony environment, you must make
sure that you perform the procedure described in Preparation for replacing
HBAs in a BladeSymphony environment on page 4-22 before replacing the
HBAs.
Preparation for replacing HBAs in a BladeSymphony environment
In a BladeSymphony environment, before you replace HBAs, perform the
following procedure to ensure that the acpiphp module has been loaded.
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 on page 4-23 . 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:
4-22
HDLM Operation
Hitachi Dynamic Link Manager User Guide (for Linux(R))