IBM Power ESE 8412-EAD, Manual

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The following table lists the details of the three-way split backplane configuration.
Table 4. Configuration details
Embedded SAS adapter Configuration details
Embedded SAS adapter A
v
The SAS adapter connects to disk drive D1 and D4.
v
The SAS adapter reports CCIN 57C7.
Embedded SAS adapter B
v The SAS adapter connects to disk drive D2 and D5.
v The SAS adapter reports CCIN 57C7.
SAS adapter (FC 5901)
v
The physical connections to the internal SAS cable are
enabled. The SAS adapter that is connected to this
cable connects to disk drive D3 and D6.
v
The SAS adapter reports CCIN 57B3.
Related concepts :
“SAS subsystem service considerations” on page 12
There are several considerations to review before servicing features within the SAS subsystem for the
8412-EAD, 9117-MMB, 9117-MMC, 9117-MMD, 9179-MHB, 9179-MHC, or 9179-MHD system.
“Service considerations for the internal SAS cable for a three-way split backplane” on page 12
To prevent data loss, follow proper procedures before replacing the internal SAS cable for a three-way
split backplane.
SAS subsystem configuration that uses a dual storage IOA with
internal drives
This configuration uses dual storage I/O adapter (IOA) or high availability (HA) RAID mode with
internal disk drives.
Figure 4. Physical connection to internal SAS adapter
8
SAS subsystem