IBM TotalStorage, Installation Manual

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Boot failed
Figure 39 shows that the boot operation has failed.
If the boot operation fails, a boot code is displayed.
See the boot codes in the appropriate section of the service documentation for a
description of the failure and the appropriate steps you must perform to correct
the failure.
Hardware boot
Figure 40 shows the what is displayed when you first power on the node while the
node searches for a disk drive to boot.
If this display remains active for longer than 3 minutes, there might be a problem.
Node rescue request
Figure 41 shows that a request has been made to exchange the software on this
node. The SAN Volume Controller software is pre-installed on all SAN Volume
Controller nodes. This software includes the operating system, the application
software, and the SAN Volume Controller publications. It is not normally necessary
to replace the software on a node but if the software is lost for some reason, for
example if the hard disk drive in the node fails, it is possible to copy all the
software from another node connected to the same Fibre Channel fabric. This
process is known as node rescue.
Power failure
Figure 42 on page 39 shows that the SAN Volume Controller is running on battery
power because main power has been lost. All I/O operations have stopped. The
node is saving cluster metadata and the node cache data to the internal disk drive.
When the progress bar reaches zero, the node will power off.
F a i l e d
1 8 0
Figure 39. Boot failed display
Figure 40. Hardware-boot display
Figure 41. Node-rescue-request display
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Installation Guide