Red Hat GLOBAL FILE SYSTEM 4.7 Guide de l'utilisateur télécharger pdf (Page 52)

Installing and configuring Red Hat Enterprise Linux and SUSE Linux Enterprise Server 9 SP3 client systems3–18

It is possible to restrict the interfaces that a client node uses to communicate with the HP SFS system by

editing the options lnet settings in the /etc/modprobe.conf or /etc/modules.conf file; see

Appendix B.

3.3.4.1.2 Configuring Voltaire InfiniBand interfaces

If the HP SFS system uses a partitioned InfiniBand interconnect, you may need to configure additional

InfiniBand IP (IPoIB) interfaces on the client node.

For information about partitioned InfiniBand interconnect configurations, refer to Chapter 2 of the

HP StorageWorks Scalable File Share System Installation and Upgrade Guide.

IPoIB interfaces are named ipoib0, ipoib1, and so on; you can use the ib-setup command to create

and delete these interfaces.

To create an IPoIB interface on a client node, perform the following steps:

1. If any Lustre file systems are mounted on the client node, unmount them.

2. Enter the sfsconfig -u command and verify that the lnet and kviblnd modules are unloaded.

(If these modules are not unloaded, the kernel retains the old connection network IDs (NIDs) and may

later refuse to connect to the HP SFS servers.)

3. Enter the ib-setup command using the following syntax:

/usr/voltaire/scripts/ib-setup --add_interface --pkey pkey --ip ip_address

--netmask netmask --mtu mtu --active 1

The system automatically chooses the next available ipoib interface name.

For example:

[root@delta12_EL4_u3 ~]$ /usr/voltaire/scripts/ib-setup --add_interface --pkey

0xffff --ip 172.32.0.112 --netmask 255.255.255.0 --mtu 1500 --active 1

You added interface ipoib0

Auto configuration is done on delta12 using IP 172.32.0.112 Netmask

255.255.255.0 Broadcast 172.32.0.255 Mtu 1500

If you need to delete an IPoIB interface on a client node, perform the following steps:

1. If any file systems are mounted on the client node, unmount them.

2. Enter the sfsconfig -u command and verify that the lnet and kviblnd modules are unloaded.

(If these modules are not unloaded, the kernel retains the old connection network IDs (NIDs) and may

later refuse to connect to the HP SFS servers.)

3. Enter the ib-setup command using the following syntax:

/usr/voltaire/scripts/ib-setup --delete_interface interface_number

For example:

[root@axis12_EL4_u3 ~]$ /usr/voltaire/scripts/ib-setup --delete_interface 0

Please note: this changes will be valid only on the next IB restart

[root@delta12_EL4_u3 ~]$

3.3.4.2 Checking that the python2 package is loaded

The commands that are used to mount and unmount file systems on the client nodes require that the

python2 package is installed on the client node. You can check if this package is installed by entering the

following command on the client node:

# rpm –qa | grep python

Check the output to see if the python2 package is listed. The python2 package is usually part of your

Linux distribution.

1 2 ... 47 48 49 50 51 52 53 54 55 56 57 ... 133 134

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