Red Hat GLOBAL FILE SYSTEM 4.7 Uživatelská příručka stáhnout pdf (Strana 25)

Installing the HP SFS client software on HP XC systems (new installations) 2–5

2.2.3.2 Configuring the NTP server

For the HP SFS diagnostics to work correctly, the date and time on the client nodes must be synchronized

with the date and time on other client nodes, and with the date and time on the servers in the HP SFS system.

In addition, synchronizing the date and time on the systems keeps the logs on the systems synchronized, and

is helpful when diagnosing problems.

As a result, HP strongly recommends that you synchronize the date and time on client nodes with the date

and time on other client nodes, and with the date and time on the servers in the HP SFS system, even though

the systems do not need to be synchronized for Lustre to work correctly.

To synchronize the systems, you can enable the NTPD service on the head node, and configure the node to

use the same NTP server that the servers in the HP SFS system use (configured on the administration server).

2.2.3.3 Configuring firewalls

If you intend to run a firewall on your client nodes, you must make sure that it does not block any

communication between the client and the servers in the HP SFS system. If you encounter any problems while

your firewall is running, please disable the firewall and see if the problems can be reproduced. Your

HP Customer Support representative will be able to help you to set up your firewall.

2.2.3.4 Configuring the slocate package on client nodes

The slocate package may be installed on your system. This package is typically set up as a periodic job

to run under the cron daemon. To prevent the possibility of a find command executing on the global file

system of all clients simultaneously, the hpls-lustre-client package searches the

/etc/updatedb.conf file for references to lustre or lustre_lite. If no reference is found, lustre

and lustre_lite are added to the list of file systems that the slocate package ignores. This list is in

the /etc/updatedb.conf file. When lustre and lustre_lite are added to this list, all lustre

and lustre_lite file systems are ignored when the slocate package executes a find command.

If you wish to enable the slocate package to search lustre and lustre_lite file systems, remove

the lustre and lustre_lite entries from the /etc/updatedb.conf file and add a comment

containing the text lustre and lustre_lite at the end of the file.

When you have finished configuring the head node as described in Section 2.2.3.1 through

Section 2.2.3.4, proceed to Section 2.2.4 to verify the operation of the interconnect.

2.2.4 Step 4: Verifying the operation of the interconnect

Verify that the interconnect is operating correctly; refer to Chapter 6 of the HP StorageWorks Scalable File

Share System User Guide for details of how to test the interconnect. (Note that you will not be able to mount

a file system if the interconnect between the HP XC and HP SFS systems is not working correctly.)

When you have finished verifying the operation of the interconnect, proceed to Section 2.2.5 to add the

HP SFS server alias to the /etc/hosts file.

2.2.5 Step 5: Ensuring the HP XC system can monitor the HP SFS system

The HP XC system must be able to communicate with the HP SFS system to allow the HP XC system to monitor

the HP SFS system. Because this communication is through a single address, you must configure an alias on

one of the networks on the HP SFS system. Depending on the interconnect type, configure an alias on the

HP SFS system as follows:

• If the interconnect is a Gigabit Ethernet network, HP recommends that you configure an alias on this

network.

• If the interconnect is a type other than Gigabit Ethernet—for example, InfiniBand—configure an alias

on the external network.

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