Applies to:
-----------
Power8 Scale-Out Server Storage Backplanes:
-------------------------------------------
#EJ0U SAS Backplane 8x SFF-3 Bays, DVD Bay, Dual IOA 1.8GB Cache
#EL3U SAS Backplane 8x SFF-3 Bays, DVD Bay, Dual IOA 1.8GB Cache
#EJ0P SAS Backplane 18x SFF-3 Bays, DVD Bay, Dual IOA 1.8GB Cache
-----------------------------------------------------------------
#EJ0N SAS Backplane 12x SFF-3 Bays, DVD Bay, 0GB Cache
#EJ0T SAS Backplane 12x SFF-3 Bays, DVD Bay, 0GB Cache
#EL3T SAS Backplane 12x SFF-3 Bays, DVD Bay, 0GB Cache
-----------------------------------------------------------------
#EJ0S Split #EJ0N 6+6 SFF-3 Bays w/2nd 4U 57D7 SAS Controller
#EJ0V Split #EJ0T 6+6 SFF-3 Bays w/2nd 2U 57D7 SAS Controller
#EL3V Split #EL3T 6+6 SFF-3 Bays w/2nd 2U 57D7 SAS Controller
-----------------------------------------------------------------
#EJ0Z SAS Ports/Cabling for Dual IOA BackPlane
-----------------------------------------------------------------
IBM's initial POWER8 Scale-Out Servers announced several FCs for Storage Backplanes, Split BP Options, and 1.8-inch SSD Cages.
Essentially, there are
3x SAS Storage Backplanes (8x Slot, 12x Slot, 18x Slot)
1x Backplane Split Option for the 12x Bay Backplane
2x 1.8-inch SSD Cages (6x Slot, 8x Slot)
Miscl FCs
All Backplanes discussed here support SAS SFF-3 Drives (HDD/SSD) plus a DVD Bay.
All Bays support Hot-Swap.
P8 Scale-Out Server Backplanes by MTMD/FC
---------------------------------------------------------------
| 8-Bay | 8-Bay | 12-Bay | 6 + 6 | 18-Bay |
BP CCIN | 2B5A | 2B5A | 2B09 | 2B09 | 2B0F |
------------|---------|---------|---------|---------|---------|
Ctrl Cfg | 2x 57D8 | 1x 57DC | 1x 57D7 | 2x 57D7 | 2x 57D8 |
Cache | 1.8GB | 2.0GB | 0.0GB | 0.0GB | 1.8GB |
------------|---------|---------|---------|---------|---------|
5148-2xL 2U | | #EL3W | #EL3T | #EL3V | |
------------|---------|---------|---------|---------|---------|
8247-21L 2U | #EL3U | | #EL3T | #EL3V | |
8247-22L 2U | #EL3U | #EL3W | #EL3T | #EL3V | |
8247-42L 4U | | | #EJ0N | #EJ0S | #EJ0P |
------------|---------|---------|---------|---------|---------|
8284-2xA 2U | #EJ0U | | #EJ0T | #EJ0V | |
------------|---------|---------|---------|---------|---------|
8286-4xA 4U | | | #EJ0N | #EJ0S | #EJ0P |
---------------------------------------------------------------
#EL3W 2U Storage Backplane & CCIN 57DC SAS Controller:
This is an ESS Dedicated config, included here for reference.
Refer to #EL3W for details.
Backplanes with the same CCIN are physically identical.
But, this is Not true for the Controller CCINs.
Excluding the ESS Dedicated Controller (57DC), there are two controller CCINs (57D7, 57D8).
These represent 4x different Cards, depending on if the System is 2U or 4U.
Although the respective CCINs are electronically and functionally the same, the 4U Adapters have a large filler/bracket (which may not be easily removable) to accomodate 4U Systems. The 2U and 4U Cards have different FRUs. Physically, 57D7 and 57D8 are PCIe3 (x8) Adpaters.
Controller 57D7 does not contain Write Cache.
Controller 57D8 contains 1.8GB Write Cache.
The 2B09 12-Bay Backplane supports Split 6+6 Configs with the addition of a second 57D7 Controller. Again, the second 57D7 is size dependent.
2B09 Split Backplane (6+6) FCs
--------------------------------------------------
BP FC | CCIN | Split FC | Ctrl CCIN | U | MT |
-------|------|----------|-----------|----|------|
#EJ0T | 2B09 | #EJ0V | 2x 57D7 | 2U | 8284 |
#EL3T | 2B09 | #EL3V | 2x 57D7 | 2U | 8247 |
#EJ0N | 2B09 | #EJ0S | 2x 57D7 | 4U | 8286 |
--------------------------------------------------
Adapter Specifics 57D7:
------------------------
Per IBM Salesmanual, EJ0N, EJ0T, EL3T require their corresponding 6+6 Split Backplane FCs. This is not correct.
The 6+6 Split Backplane Feature uses a dedicated PCIe3 Slot and does not use a reqular slot.
Adding the 6+6 Split Backplane FC does not enable the external SAS Ports.
57D7 provides RAID-0, RAID-5, RAID-6, RAID-10 support.
The Controller(s) drive the SAS SFF-3 Bays and DVD Bay.
Adapter Specifics 57D8:
------------------------
The 1.8GB Physical Write Cache is augmented with Compression to provide up to 7.2GB functional Cache.
Write Cache contents are protected against power loss with Capacitor backed Flash Memory, removing the need for batteries.
The Dual Controllers use dedicated Slots and do not technically use any PCIe Slots, But.....
For #EJ0U and #EL3U, Cache Protection Hardware overhangs one of the PCIe (x8) Slots, thus reducing the availability by one.
#EJ0U and #EL3U can directly drive the External SAS Ports.
#EJ0P does not directly drive the external SAS Ports, and therefore requires #EJ0Z SAS Ports/Cabling for Dual IOA BackPlane.
#EJ0Z supplies 2x SAS Ports and a mini SAS HD (YO) Cable with 2x Connectors. This is installed to a PCIe (x8) Slot, reducing the number of available PCIe (x8) Slots by one.
The 57D8 Controllers drive the SAS SFF-3 Bays, DVD Bay, 8x 1.8-inch SSD Cage (where supported) and External SAS Ports for #5887 attach.
57D8 provides RAID-0, RAID-5, RAID-6, RAID-10 support.
Drives:
-------
These Backplanes only support SFF-3 Drives (HDD/SSD).
Although SFF-1, SFF-2, SFF-3 Drives are the same physical devices with different carriers, for IBM Maintenance the FRUs, FCs and CCINs should be those offically designated as SFF-3.
SFF-3 Devices are not supported in the #5887 enclosure.
Related FCs:
------------
SSD Cages:
----------
#EJTL 6-Bay 1.8-inch SAS SSD Cage
#EJTM 8-Bay 1.8-inch SAS SSD Cage
#EL0H 6-Bay 1.8-inch SAS SSD Cage
Enterprise Backplanes:
----------------------
#EPVN Storage Backplane Dual RAID Controller 1.8GB Write Cache
#EPVP Storage Backplane Dual RAID Controller 0-Write Cache
#EPVQ Split Storage Backplane Paired RAID Controllers 0-Write Cache
...
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