HP XC System Software Administration Guide Version 3.2

4. Run the following commands to update all the appropriate files throughout the HP XC
system:
# pdcp -a -x `hostname` /etc/passwd /etc/passwd
# pdcp -a -x `hostname` /etc/group /etc/group
# pdcp -a -x `hostname` /etc/shadow /etc/shadow
# pdcp -a -x `hostname` /etc/gshadow /etc/gshadow
When this step is complete, the root password is changed on all the nodes in the HP XC
system.
14.8.2 Changing the CMDB Password
The configuration and management database (CMDB) is a mysql database, and you can change
its administrative password by using the mysql tools.
CAUTION: Changing the CMDB password can cause complications that can corrupt the database
and jeopardize system operation; for example, some commands might cease to function.
If you must change this password, be sure that you back up the CMDB as described in “Backing
Up the Configuration Database” (page 83). You also need to update the CMDB manually, which
is beyond the scope of this document.
14.8.3 Changing the Interconnect Password
The procedure to change the administrative password of the Interconnect switch depends on
the Interconnect switch:
• The ProCurve (Gigabit Ethernet) switch has an administrative password and requires an
update to the HP XC configuration and management database (CMDB).
• The Myrinet Interconnect switch has no administrative password.
• The Quadrics Elan4 Interconnect switch has administrative password and does not require
an update to the HP XC CMDB.
• The Voltaire InfiniBand Interconnect switch has administrative password and does not
require an update to the HP XC CMDB.
14.8.3.1 ProCurve Switch
The documentation that came with your model of the ProCurve switch describes how to set the
administrative password.
If you change the ProCurve switch administrative password and the HP XC system has more
than one ProCurve switch, you must change every ProCurve switch to the same password.
CAUTION: Changing the ProCurve password can cause complications if you do not also update
the configuration and management database (CMDB) manually with the new password. Updating
the CMDB is beyond the scope of this document.
If you make an error updating the CMDB, you can corrupt the database and jeopardize system
operation; for example, some commands might cease to function.
If you must update the CMDB, be sure that you back it up as described in “Backing Up the
Configuration Database” (page 83) before changing the ProCurve switch administrative password.
14.8.3.2 Quadrics Elan4
The documentation that came with your model of the Quadrics Elan switch describes how to set
the administrative password.
Generally, you can change the password by logging in to the switch and using its Quadrics
Switch Control main menu as in the following example:
14.8 Changing Administrative Passwords 163