But seriously: You said "existing closed datasets *should* have no
problems". I believe so. However I was asked "can you *assure* it ?".
That's why I asked the question.
Things get more complicated, when PPRC-XD (I don't like it) is used.
100% assure? I don't want to take that risk. but I am 99% sure that
after a PPRC failure, ony datasets which were open for output at the
time of the failure are exposed to errors. Existing closed datasets
should not be affected.
As I understand PPRC-XD, it can be one or a few I/Os behind the primary
volume. A dataset which was JUST closed on the primary (and thus valid)
may be exposed to problems on the secondary if the failure occurs before
all its I/Os (and the VTOC/VVDS update I/Os from CLOSE) can be
mirrored. But datasets closed more than a few seconds before the
failure should be OK (same 99%).
--
Bruce A. Black
Senior Software Developer for FDR
Innovation Data Processing 973-890-7300
personal: [EMAIL PROTECTED]
sales info: [EMAIL PROTECTED]
tech support: [EMAIL PROTECTED]
web: www.innovationdp.fdr.com
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