On 12/1/06, Fuhrmann Anna <[EMAIL PROTECTED]> wrote:

This is what I would like to do: boot from a mirrored DASD as part of
a "catastrophe scenario" when DASDs fail or crash or whatever.

I have no idea how to accomplish this. zLinux does take the
mirror-load-adress,
but as the log messages and lsdasd show, it uses the original DASD and
not the
mirrored one.

Look at options for the boot menu. You could create 2 entries in your
boot menu, one where dasd= lists your primaries and one where it has
your alternate addresses. All reference inside Linux are to the
symbolic names. That mapping is established by the dasd= kernel
option. I believe the ramdisk startup in SuSE properly picks up that
option from the zipl.conf. If it does not, then you'll have to create
an extra initrd and go through that way.

I trust z/OS will already have broken your mirror before you try to
IPL the Linux LPAR.

Rob
--
Rob van der Heij
Velocity Software, Inc
http://velocitysoftware.com/

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