Table 15. SAS boot errors (continued)
Code
Message
E430A SAS disk block size not
found!
Description
The Open Firmware Device Tree (see
IEEE 1275) has become corrupted.
This might indicate a blade server
firmware problem.
Action
1. Reboot the blade.
2. Power down then remove and
reinstall the blade server in the
BladeCenter unit.
3. If the error started after a blade
server firmware update, consider a
rolling back to the previous
firmware version. Check with the
documentation at
http://www.ibm.com/systems/
bladecenter/support/ to verify
whether rollback is possible.
4. Update the blade firmware.
5. If the error started after an Open
Firmware script change (for
example, a custom startup script),
verify the script.
6. If the error started after activating
an Open Firmware script, (for
example by setting
use-nvramrc?configuration
variable), verify the script.
7. Reproduce the blade Open
Firmware environment (firmware
version, scripts, configuration
variables, hardware configuration
etc.) with another blade server.
8.
If the error started after a
hardware was added or removed,
consider rolling back to the original
hardware configuration.
Chapter 5. Diagnostics and troubleshooting
89