Well, to some the performance issue can be a deal breaker. That all
depends on your replication strategy.
Also, for us, network 'glitches' (short drop outs) are an ongoing thing.
But I guess the biggest single issue is the size of the network pipe
needed. Again, depending on your strategy, you may need bandwidth
approaching full duplex FICON or even more. And that's rather pricy.
Another issue is latency (speed of light). However, the modern hardware
seems to manage this issue rather well.
We used PPRC for a good while and it worked well for us. We now have a
much more aggressive DR strategy and have implemented XRC.
We have an even more aggressive strategy as a goal. The technology isn't
quite there yet for what we have in mind.
-Original Message-
From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On
Behalf Of Jason To
Sent: Wednesday, February 20, 2008 10:08 PM
To: IBM-MAIN@BAMA.UA.EDU
Subject: Multi-stie GDPS/PPRC
We are planning to implement multi-site GDPS/PPRC - active/active
configuration to increase availability and at the same time maximize
usage
of our CPU in disaster recovery site. We currently have PPRC in place
and
the distance between the DR and the production site is about 70km. Any
user
experience/ user advice/issues we have to consider in implementing this
solution. We have read about the GDPS 100km testing and have seen that
the
only major issues will be performance.
Regards,
Jason
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