IBM System storage DS6000 Series, Redbooks

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Chapter 6. Copy Services
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6.4 Interoperability with ESS
Copy Services also supports the IBM Enterprise Storage Server Model 800 (ESS 800) and
the ESS 750. To manage the ESS 800 from the Copy Services for DS6000, you need to
install licensed internal code version 2.4.2 or later on the ESS 800.
The DS CLI supports the DS6000, DS8000, and ESS 800 at the same time. The DS Storage
Manager does not support the ESS 800.
6.5 Future Plan
According to the announcement letter, IBM has issued a Statement of General Direction:
IBM intends to offer a long-distance business continuance solution across three sites allowing
for recovery from the secondary or tertiary site with full data consistency.
Note: The DS6000 does not support PPRC via an ESCON link. If you want to configure a
PPRC relationship between a DS6000 and ESS 800, you have to use an FCP link.