Table 92. Model conversion prerequisites (continued)
Prerequisites Description
Physical installation
requirements
Determine whether the new DS8880 can occupy the same
floor space as the existing DS8870.
v If you are using the same location, you need to provide a
location for both the existing DS8870 and converted
DS8880 frames so that the hardware can be staged
between them.
v To determine the number of DS8880 frames required for
your configuration, contact IBM. If your configuration
requires additional frames, ensure that you have
sufficient physical space.
v Whether installed in an existing or new location, the
location must conform to the requirements for DS8880.
Management console settings Determine how the IBM service representative receives the
settings for the new management consoles (primary and
secondary). If the DS8870 configuration has an external
secondary management console, then the new DS8880 will
have a secondary management console installed inside the
base frame. You might need to plan to move the support
infrastructure.
v If the existing settings are to be reused, the IBM service
representative records the existing settings to use on the
new management console.
v If some or all of the settings are changing, you must
complete the customer configuration worksheets and
provide the completed worksheets to the IBM service
representative before you begin the conversion.
Single management console
(1x1) configuration
DS8880 does not support a 2x2 configuration. The DS8870
must be in a 1x1 configuration prior to conversion, and
must not be connected to another storage system by the
black and gray private network cables. If the DS8870 is not
already in a 1x1 configuration, the IBM service
representative must use discontinue procedures to separate
it before you begin the conversion. If the existing DS8870 is
in either a 2x2 or 2x1 configuration, a significant amount of
extra time is required to reconfigure the storage system to a
1x1 configuration before you begin the conversion. You
need to plan accordingly.
Serviceable events Before you begin the conversion, the IBM service
representative must repair any open serviceable events.
Hardware repairs add service time.
Checking your preparations
Use the following steps as a checklist to ensure that you complete all of the
necessary planning and preparations before you receive shipment of the storage
system.
Procedure
1. Verify that you have two ac power sources for each frame.
Appendix D. DS8870 to DS8880 model conversion 201
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