HP XC System Software Administration Guide Version 3.0
Table of Contents
About This Document...................................................................................15
Intended Audience................................................................................................................................15
Document Organization.........................................................................................................................15
HP XC Information.................................................................................................................................16
For More Information........................................................................................................................17
Supplementary Information...............................................................................................................17
Manpages......................................................................................................................................18
Related Information...............................................................................................................................19
Typographic Conventions.......................................................................................................................20
HP Encourages Your Comments..............................................................................................................21
1 HP XC Administration Environment
Determining the Installation Type.............................................................................................................23
Understanding Nodes, Roles, and Services...............................................................................................23
Administrator Passwords........................................................................................................................25
Secure Shell (ssh)..................................................................................................................................25
Understanding the HP XC Command Environment.....................................................................................25
HP XC Command Set.......................................................................................................................25
Interpreting the nodelist Parameter......................................................................................................27
Executing a Command on Multiple Nodes..........................................................................................27
Using the pdsh Shell...................................................................................................................27
Using the cexec Command..........................................................................................................28
Understanding the Configuration and Management Database....................................................................29
Networking..........................................................................................................................................29
Linux Virtual Server for HP XC System Alias.........................................................................................29
Network Time Protocol.....................................................................................................................30
Network Address Translation.............................................................................................................30
Network Information Service.............................................................................................................30
Local Storage.......................................................................................................................................31
Understanding and Maintaining the File System........................................................................................31
General File System Layout................................................................................................................31
Systemwide Directory.......................................................................................................................32
HP XC File System Layout..................................................................................................................32
HP XC Service Configuration Files......................................................................................................33
Log Files..............................................................................................................................................33
Modulefiles..........................................................................................................................................34
Software Distribution.............................................................................................................................35
Recommended Administrative Tasks.........................................................................................................35
2 Starting Up and Shutting Down the HP XC System
Understanding the Node States..............................................................................................................37
Starting Up the HP XC System.................................................................................................................39
Starting All Nodes...........................................................................................................................39
Determining Which Nodes Require Imaging........................................................................................39
Imaging and Starting Nodes.............................................................................................................39
Restarting a Node for Imaging..........................................................................................................40
Shutting Down the HP XC System............................................................................................................40
Shutting Down One or More Nodes........................................................................................................40
Determining a Node's Power Status.........................................................................................................40
Locating a Given Node.........................................................................................................................41
Disabling and Enabling a Node.............................................................................................................41
Table of Contents 3