I suspect you will run into endian issues.

You didn't say what type of filesystem or what DB you are using.  I think ext2, 
ext3, and reiser can be moved from big endian to little endian, but I am not 
completely sure.

The DB probably has binary data in the indexes, and possibly in the actual 
data.  This will cause things to break.

-----Original Message-----
From: Linux on 390 Port [mailto:[EMAIL PROTECTED] Behalf Of
Phil Smith III
Sent: Thursday, November 03, 2005 8:50 AM
To: [email protected]
Subject: Moving SCSI disk on z/VM to Intel


Has anyone successfully "moved" data on a SCSI disk from a Linux guest under 
z/VM to an Intel machine simply by redefining the LUN?

That is, if you have the right Shark and the right kinds of connections to both 
the zSeries and an Intel machine (dedicated FCP subchannels attached to a Linux 
guest), *in theory* one would think you could have (say) a database on a 
minidisk, shut down the VM guest, redefine the LUN so it's now accessible from 
an Intel Linux box running the same DBMS, mount it, and use the data.

In talking with IBM, including Steve Wilkins, nobody has been able to say "This 
will definitely work".  The issue is that VM is going to want to put an 
allocmap, label, etc. on the disk, and Intel isn't likely to know what to make 
of that.

So...anyone done this?  Or have additional info that might help?

Thanks in advance...if I had a Shark I'd sure try it, but I don't...
-- 
...phsiii

Phil Smith III
Director of Technical Services
Levanta, Inc.
[EMAIL PROTECTED]
(703) 476-4511 (office)
(703) 568-6662 (cell)

Levanta.
Get More Out of Linux

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