Yes - you can use hardware services to clone a lun, but it's the booting in
3270 mode that won't work.
The clone will refer to the original image in it's initrd configuration and
will try to mount the original root file system LUN using the original FCP
device talking to the original WWPN. If all that is not accessable where
you are IPLing the clone, the IPL will fail with a kernel panic as it tries
to mount the original root LUN. Even if all that is accessable when you IPL
the clone, and the IPL works, you will have IPLed off the clone, but it
will have mounted the original LUN at "/". This is probably not what you
want.
So even if you use hardware services to do the actual copy part, you still
have to mount the new clone LUN somewhere, chroot into it, change all the
zfcp parameters, rebuild the clone's initrd, and rerun zipl on the clone.
If anyone knows of another method that gets around all this error prone
stuff, I'd like to know too. :)
Maybe someone could write up a big bash script to handle it all
automatically...
( <mumble> where's my 'to do' list? <scribble> <scribble> )
Jay Brenneman
Peter Rothman
<[EMAIL PROTECTED]
rldspan.com> To
Sent by: Linux on [email protected]
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<[EMAIL PROTECTED]
IST.EDU> Subject
Cloning FCP-attached SCSI SLES9
12/08/2005 10:04
Please respond to
Linux on 390 Port
I am reading through the Redbook on this subject - the introduction says it
describes a procedure so I assume there must be other procedures - possible
'easier' ones?
Is it possible to clone more along the lines that could be used with
regular dasd.
For example:
1. Use h/w services to copy the LUN.
2. Boot new LUN and use the 3270 interface to make changes for IP
address, LUN number WWPN etc.
Is there documentation on this method or any other alternate methods.
Thanks
Peter.
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