To provide the highest bandwidth between two paired feature EJ0L adapters for the mirroring of cache
data and parity update footprints, two SAS Adapter-to-Adapter (AA) cables are required by default on
the third and fourth adapter ports until maximum device quantity attachment is required. When all
connectors are attaching SAS drives, the communication between the adapter pair is performed through
the SAS fabric via the I/O drawer and cabling.
The FC EJ0L is a single wide, full-height, short adapter. Figure 24 shows the FC EJ0L adapter. Every FC
EJ0L requires another FC EJ0L on this server, or on another server, which pairs with the SAS RAID
adapter and enables cache functionality and the other multi-initiator high availability (dual storage IOA)
functions.
Systems running the AIX or Linux operating systems support either having both EJ0L features in the
same system or partition, or in two separate systems or partitions. Systems running the IBM i operating
system do not support the pairing of adapters on different servers or different partitions, so both the EJ0L
features must be installed on the same system or partition.
For details about slot priorities and placement rules, see the PCI adapter placement topic collection for
your system.
Specifications
Item Description
Adapter FRU number
00FX840 (Designed to comply with RoHS requirement)
Figure 24. PCIe3 12 GB Cache RAID SAS 6 Gb Adapter
68 Power Systems: Managing PCI adapters for the IBM Power 710 Express or the IBM Power 730 Express
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