Node_definition_installation_service_node_setup_verification
Note: this is an xCAT design document, not an xCAT user document. If you are an xCAT user, you are welcome to glean information from this design, but be aware that it may not have complete or up to date procedures.
Overview
The verification for node (Include service node or compute node) definitioin and status after the installation/netboot is very important for user to know that the node is ready for installation or has been installed succeeded. This mini-design lists the items that should be checked before and after the installation for a node.
The check activity should be implemented in a perl script and called by the nodecheck command.
Verify the node definition before the install/netboot:
* dns: (the name resolution for the node, short name)
* dhcp: (has correct dhcpd.conf and correct section in the lease file)
* conserver: The node has a section in the /etc/conserver.cf
* The hcp is pingable
* Has correct bootloader file for the node (yaboot, pxelinux, xnba)
* The correct bootloader configuration file has been created
* Check the attributes: noderes.netboot, noderes.tftpserver,noderes.nfsserver,noderes.installnic,noderes.xcatmaster
* Diskfull
: autoyast/kickstart configuration file has been created
: copycds has been run for the specific os
: The kernel, initrd have been copied to correct location
* Diskless
: The specific osimage has been created
: The kernel and osimage has been copied to the correct location
* Statelite
: The specific osimage has been created
: The kernel and osimage has been copied to the correct location
: The statelite,litefile,litetree table
- passwd table has correct entries (omapi,xcat,system)
- The password in the ppchcp,ppcdirect,ipmi tables
- Display a configuration after the check
: Display: node name, node IP,mac address, os, profile, path of autoyast/kickstart configuration file, kernel parameters,
: List the postscripts, postbootscripts which will be run during the installation
:* List the syncfile, pkglist, otherpkgs.pkglist which will be run for the node - virtualization node ...
Verify the node status after the install/netboot:
* dns: the node name of MN/SN can be resolved from the compute node
* Can ssh to the node without passwd from the MN/SN
* The node status is correct
* The files in the synclist have been synced to the node
* The pkgs in the otherpkgs.pkglist have been synced to the node
Service node specific:
* The xCAT and dependency packages have been installed (xCATsn instead of xCAT)
* All the processes of xCAT have been started
* The database has been configured correctly. (/etc/xcat/cfgloc)
* The credentials have been gotten from MN. Should check the compatibility with the ones on MN.
* .ssh/ has correct configuration so that MN can ssh to SN without password
* The syslog has been redirected to the MN
* The service like tftp,nfs,http... have been started base on the definition of the service node. (servicenode table)
* The installation resource from the management node (/install mount from MN?)
* Has correct files in /install/postscripts
