Hp Hitachi Dynamic Link Manager Software Instrukcja Użytkownika Pobierz pdf (Strona 158)

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101

3. Creating an HDLM Environment

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However, you can avoid the above situations by setting a permanent target ID for

each LU with the HBA driver persistent binding functionality. For details on

whether the persistent binding functionality is supported for your HBA driver and

the setting method, see the manual provided with the HDLM driver.

 If you created an environment by using the QLogic HBA driver while SUSE

LINUX Enterprise Server 9 is being used, before installing HDLM, make sure

that the following coding is in the line for

INITRD_MODULES= in the /etc/

sysconfig/kernel

file.

• When using the QLA22XX HBA:

qla2200

• When using the QLA23XX HBA:

qla2300

If qla2xxx is appears in the file instead of qla2200 or qla2300, change

qla2xxx to qla2200 or qla2300 as follows:

INITRD_MODULES="mptscsih qla2300 reiserfs"

After editing the /etc/sysconfig/kernel file, execute the mkinitrd

command to re-create an initial RAM disk image.

3.5.2 Notes on Linux

 Install and uninstall HDLM in a multi-user mode environment.

 Note that, if the /var directory is set up on a different partition than the root

directory (

/), no logs will be output to the /var/log/messages file until the /

var

directory has been mounted during the OS start process.

 If multiple OSs exist on a disk that differs physically or logically within the same

host, HDLM can be installed on each OS. Also, if multiple kernels exist on one

OS, HDLM can be used only when the kernel installed with HDLM is started.

Note, however, that if the OS is Red Hat Enterprise Linux 5 or Red Hat Enterprise

Linux 6, you can use HDLM even if HDLM is not installed in the running kernel.

In this case, no settings are required.

 For Red Hat Enterprise Linux, if HDLM is installed, the initscripts package

is updated, the OS is restarted, and no HDLM information exists in the

/etc/

rc.d/rc.sysinit

file, execute the system script update utility

(

dlmupdatesysinit).

Confirm that the HDLM information is missing by executing the following

commands:

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