hdisk0 missing

[hraa]

Hi
We have p550 and tow hdisk (hdisk0,hdisk1) for rootvg the first disk hdisk0 is boot and missing now .
I remove all mirror file systems from hdisk0 but the hdisk0 have sysdump and loglv01 (jfslog).
how to change the sysdump to hdisk1 and how to change boot to hdisk0.

thanks

 

[khalidaaa]

To change sys dump man sysdumpdev (look at -p option)

http://publib.boulder.ibm.com/infoc.../com.ibm.aix.cmds/doc/aixcmds5/sysdumpdev.htm

Changing the boot device:

Boot from aix cd's into maint shell and run the bosboot -ad /dev/hdisk0
command. 

Or if the hd5 boot device is mirrored on hdisk0 and hdisk1 all you need
to do is boot into sms menu and ensure both disks are selected in the
boot order. 

To access sms hit 1 before it does a speaker test. 
/////
You can boot it up into what used to be called SMS mode .. i.e. hit F1 at
the 'keyboard' prompt ... You can change the boot device from there and
then make sure that you rerun your bosboot once you have booted up.
Couldn't be simpler

http://stromberg.dnsalias.org/~strombrg/Useful-AIX-commands.html

Regards,
Khalid