Hub/Switch Installation Guide

Chapter 3 System Preparation
146 September 2002 HPSS Installation Guide
Release 4.5, Revision 2
• Download and install the HPSS deployment tool package (http://
www4.clearlake.ibm.com/hpss/support/ToolsRepository/deploy.jsp) on
each HPSS node in/opt/hpss/tools/deploy. Runand becomefamiliarwith the lsnode tool,
which will be helpful in other steps.
To run lsnode and save the output to /var/hpss/stats/lsnode.out:
% mkdir -p /var/hpss/stats
% cd /opt/hpss/tools/deploy/bin
% lsnode > /var/hpss/stats/lsnode.out
3.2 Setup Filesystems
3.2.1 DCE
Note: The /var/dce filesystem, whether on the DCE server machine or client, must have free space available
for DCE to work properly. /var/temp can fill up due to activity like editing a large file. When this happens,
DCE is unable to create temp files for credentials and DCE processes will fail. Therefore, /var/dce should be
made separate so that it will be unaffected by other activity requiring the use of /var. It is also highly
recommended that general filesystem monitoring tools be installed on all DCE/HPSS/SFS machines to alert
administrators of full filesystems so appropriate action can be taken immediately. The /var/hpss directory
shouldalso beaseparate filesystemto protectitfrombeingaffected bythesame problemorit inturnaffecting
/var or /var/dce adversely.
• Configure/var/dceasaseparatefilesystemoneachHPSSserver,DCEserver,andSFSnode
with at least 20 MB of space initially and make sure this file system is automatically
mounted at system reboot. On DCE server nodes, /var/dce should be mirrored across
separate physical disks.
To verify that the correct IP addresses (i.e., networks) are being used, on each DCE node:
% rpccp show mapping | grep string | awk -F: '{print $2}' | \
awk -F[ '{print $1}' | sort -u
• Verify that an appropriatetime-synchronizationmechanism is in place for all nodesin the
DCE cell.
• Add a cron job (as root) on each DCE node to periodically clean up expired credentials.
% crontab -e
and add the following line:
15 0,6,12,18 * * * /bin/rmxcred > /dev/null 2> /dev/null
• Verify on all DCE nodes that DCE is automatically started in /etc/inittab after system
reboot.
• ObtainyourHPSSCellIdfromIBM.Thisinformationwillbeneededwhenmkhpssisused
to configure HPSS with DCE.