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The Question is:
I have RZ28M-VA drives connected to an internal scsi controller on an Alpha
1000A 5/333 and some connected to a SWXCR controller that I am trying to
volume shadow together. I get system-f-incshamem errors because the drive's
geometry is different between
the controllers. Why or how does the geometry change on these drives and what
needs to be done to make them compatible?
Thanks.
The Answer is :
If you are running the current shadowing ECOs or the shadowing found
in recent OpenVMS releases, the shadowset member geometry is not a
factor -- the total number of blocks present on each device must match,
but there are no longer any geometry-specific restrictions with volume
shadowing.
There is no particular supported means to shadow devices with differing
numbers of blocks, but sometimes disks or controllers can have the
number of available blocks altered through some controller- or
hardware-specific means. The other obvious approach involves the use
of a consistent set of disk devices as all members of a shadowset.
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