Computer Hardware User Manual

Special RS/6000 SP Topics 185
The backup cws has to be installed with the same level of AIX and PSSP.
Depending on the kerberos configuration of the primary cws, the backup cws
has to be configured either as a
secondary authentication server for the
authentication realm of your RS/6000 SP when the primary cws is an
authentication server itself, or as an
authentication client when the primary
cws is an authentication client of some other server. To do so will enable a
correct kerberos environment on the backup cws; so, remote commands will
succeed through kerberos authentication as on the primary cws.
After the initial AIX and PSSP setup is done, the HACWS software has to be
installed.
9.1.4 Install High Availability Software
On both control workstations, the HACMP software has to be installed now,
according to the instructions in the
HACMP for AIX, Version 4.3: Installation
Guide
, SC23-4278. Verification, as described in Chapter 10 of the HACMP for
AIX, Version 4.3: Installation Guide
, SC23-4278, should be performed. For
HACWS control workstations, the ssp.hacws fileset has to be installed as
well.
9.1.5 HACWS Configuration
Since the cws might have some daemons active that could interfere with the
definition and configuration of networks, you have to stop them, in order to
get the configuration done, with the command:
/usr/sbin/hacws/spcw_apps -d
This will stop the subsystems spmgr splogd hardmon sysctld supfilesrv
sp_configd
if they have been active with the corresponding SRC command.
Now configure the serial network. You can either use target mode SCSI,
target mode SSA or the raw RS-232 serial line, or any combination.
Both machines, primary and backup, need to be configured to boot up on
their boot address in order to not confuse a working cws at boot time of the
backup cws.
If not previously done, you have to migrate the /spdata file system to an
external volume group, to make it accessible from both sides.
After the /spdata file system is set up so that a
varyonvg of its vg will work on
either cws, you have to complete the Administration Tasks, like on an