IBM RS/6000 - Manual (Page 106)

5.3.4 Dump LCD Support
With the current version, 4.1.4, of AIX, only the 0CX codes will be displayed by the
front LCD panel on the E20 and F30. If the system crashes, there will be no
flashing 888 followed by 102 or 103 as there is with microchannel-based RS/6000
systems. A system crash will cause a dump to be initiated immediately. In most
cases, 0C2 will be displayed during the dump, and this will be followed by 0C0, for
example, which indicates that a dump has completed.
Table 14 explains the meaning of all the 0CX codes.
Table 14. Dump Codes
Dump Code Description
0C0 A user-requested dump completed successfully.
0C2 A user-requested dump is in progress.
0C4 A partial user-requested dump completed.
0C5 A user-requested dump did not start.
0C6 A dump to the secondary dump device was requested.
0C7 Progress indicator. Remote dump in progress.
0C8 The dump device is disabled.
0C9 A system-initiated dump started, but did not complete.
5.4 Managing System Backups
All RS/6000 machines have the ability to create backup tapes of the root volume
group which can be used to restore a system in the event of data corruption or to
simply to transfer an installed and configured software image from one system to
another.
On microchannel-based RS/6000 systems, a boot image was placed at the front of
the tape to allow the system to boot from the tape and restore the system image
without using any other media. With versions of AIX before 4.1.4, during the
mksysb operation, if the system is a PCI-based RS/6000, a boot image is not made
or written to the tape. This forces the user to perform either a network or CD-ROM
boot to restore the system from a mksysb tape. In AIX 4.1.4, the mksysb shell
script always writes a boot image to tape. The check for PCI-based RS/6000
systems which prohibited the boot image from being placed on the tape has been
removed. In addition, a new file, rspc.tape.proto and several proto extension files
have been included. These files are required to create a bootimage (see 4.3, “Boot
Image” on page 58) at the beginning of the mksysb tape. To be able to boot from
this mksysb tape requires the platform firmware to support the tape boot. It has
been fully tested on the Model E20 and F30.
Booting from Tape
Although not fully tested, a tape boot is supported on the 43P with firmware
levels of 1.06 or above. The 40P firmware, however, does not support booting
from tape.
82 Introduction to PCI-Based RS/6000 Servers