IBM DS8700, Введение и руководство по планированию

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Host adapter intermix support
Both 4-port and 8-port host adapters (HAs) are available in the DS8800. The
DS8700 supports only the 4-port HA, but like the DS8800, it can use the same 8
Gbps, 4-port HA for improved performance.
DS8700
The DS8700 supports a 4-port, 4 Gbps or 8 Gbps HA plugged into either
the C1 or C4 slots of the I/O enclosures, slots C2 and C5 only support 4
Gbps HA.
If all of the C1 and C4 slots are occupied by a previously installed 4 Gbps
HA, you can remove the existing HA from the C1 or C4 slot to install the
4-port 8 Gbps HA. The removed 4 Gbps HA might be reinstalled to an
available C2 or C5 slot. The DS8700 can support up to 128 Fibre Channel
ports, but only 64 of those can be 8 Gbps.
DS8800
The DS8800 supports both 4-port and 8-port, 8 Gbps HAs. It does not
support 4 Gbps HAs. The position and the plug order in the I/O enclosure
of the storage unit is the same as the DS8700. No HAs are supported in
slots C2 and C5.
Figure 11 shows the adapter plug order for the DS8700 (4-port) and DS8800 (4-port
and 8-port) HA configuration.
Figure 12 on page 32 also shows the adapter plug order for the DS8700 and
DS8800 using a 4-port or 8-port HA configuration.
C1 C2 C3 C4 C5 C6
C7
C1 C2 C3 C4 C5 C6
C7
HA HA DA HA HA DA
HA Plug order 94X
HA Plug order 95X
3
HA HA DA HA HA DA
7 1 5 2 6 4 8
3 X 1 X 2 X 4 X
f2c01642
Figure 11. Adapter plug order for the DS8700 (4-port) and the DS8800 (4-port and 8-port ) in a HA configuration.
Chapter 2. Hardware and features
31