IBM NeXtScale System Planning And Implementation Manual page 195

Modify selected settings in the integrated management module IMM-based
servers for the IMM firmware and IBM System x Server firmware. IBM
System x Server Firmware is the IBM implementation of Unified Extensible
Firmware Interface (UEFI).
Modify a limited number of VPD settings on IMM-based servers.
Modify iSCSI boot settings. To modify iSCSI settings with the ASU, you must
first manually configure the values by using the server Setup utility settings on
IMM-based servers.
Connect remotely to set the listed firmware types settings on IMM-based
servers. Remote connection support requires accessing the IMM external
port over a LAN.
The ASU utility and documentation are available at this website:
http://ibm.com/support/entry/portal/docdisplay?lndocid=MIGR-5085890
Note: By using the ASU utility, you can generate a BIOS definition file from an
existing system. A standard definition file is not provided on the IBM support
site.
By using the ASU utility command line, you can read or modify firmware settings
of a single node. The tool can be used from inside the node to modify node
settings or to change a remote node through its IMM interface. When local to the
node, ASU configures the in-band LAN over the USB interface and performs the
wanted action.
When a node is accessed remotely, the IP address, user name, and password of
the remote IMM must be provided. Figure 7-14 shows a command-line example
that sets the IMM hostname value.
export PATH="/opt/ibm/toolscenter/asu/:$PATH"
asu64 set IMM.HostName1 <new_imm_hostname> --host <imm_ip_address>
--user USERID --password PASSW0RD
Figure 7-14 Setting the IMM2 host name that uses ASU
When the same value must be applied to several nodes, the asu64 command
must be run for each node that requires the setting. The latest releases of xCAT
cluster management software provide a new tool, Parallel ASU, with which you
can run the ASU tool to several nodes in parallel. xCAT cluster management
capabilities and Parallel ASU help the IT administrator to perform changes to its
cluster.
Chapter 7. Hardware management
177