Copy Services Support - IBM I VIRTUALIZATION - READ ME FIRST 7-9-2010 Manual

To perform the LPAR and VIOS setup, consult Chapter 2.9 in the Redbook PowerVM Managing
and Monitoring (SG 24-7590): http://www.redbooks.ibm.com/abstracts/sg247590.html?Open.
While the examples given are for an AIX client of VIOS, the procedure is identical for an IBM i
client.
To perform the storage or tape configuration, consult the Redbook IBM i and IBM System
Storage: A Guide to Implementing External Disks on IBM i (SG24-7120) at
http://www.redbooks.ibm.com/abstracts/sg247120.html?Open or Implementing IBM Tape in i5/OS
(SG 24-7440) at http://www.redbooks.ibm.com/abstracts/sg247440.html?Open. As mentioned
above, from the storage subsystem's or tape library's perspective, the configuration is identical to
that for IBM i directly attached through the SAN fabric. Accordingly, DS8000 LUNs may be
created as "IBM i protected" or "IBM i unprotected" and will correctly report as such to Storage
Management in IBM i. A tape library and a drive within will also report the correct device names
and types, such as TAPMLBxx, 3584 and TAPxx, 3580-004. All tape operations supported with
direct FC attachment are supported through NPIV, including hardware tape encryption.
17.4. Copy Services
As explained above, the main differences between NPIV and VSCSI I/O virtualization for IBM i
are:
•
With NPIV, storage and tape devices report into IBM i with their specific characteristics,
as opposed to generic SCSI devices
•
IBM i has also gained NPIV access to storage and tape devices to which it could already
attached directly, benefiting from transparent FC adapter sharing
As a result, both the storage subsystem (DS8000) and LUN types involved with NPIV for IBM i
are identical to those already supported by PowerHA for IBM i. PowerHA for IBM i continues to
manage both Copy Services on DS8000 using the Storage Management Console (SMC) and the
required clustering objects in IBM i from a single interface. Therefore, DS8000 Copy Services
are supported by PowerHA for IBM i when using NPIV, including FlashCopy, Metro and
Global Mirror.
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