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Boot progress indicator
Boot progress is displayed on the front panel of the SAN Volume Controller.
Figure 34 shows that the node is starting.
Figure 34. Boot progress display
During the boot operation, boot progress codes are displayed and the progress bar
moves to the right while the boot operation proceeds.
Boot failed
If the boot operation fails, a boot code is displayed.
See "Understanding the boot codes" of the IBM TotalStorage SAN Volume
Controller: Service Guide for the boot codes, a description of the failure, and the
appropriate steps you must perform to correct the failure.
Hardware boot
The hardware boot display shows system data when power is first applied to the
node as 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
If software is lost, you can use the node rescue process to copy all software from
another node.
Figure 35 on page 61 shows that a request has been made to exchange the
software on this node. The SAN Volume Controller software is preinstalled 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
60
IBM TotalStorage SAN Volume Controller: Installation Guide
"Error codes" on page 62
Error codes are displayed on the front panel display.
B o o t i n g
F a i l e d
1 3 0
1 8 0
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