High-performance SCSI, disk controller placement

Determine which PCI slots can accommodate the 2780, 5580, 5582, 5583, 5590, 5738, 5739, 5746, 5777, 5778, 5781, 5782, 5799, and 5800 SCSI controllers on machine type 940x models and associated I/O expansion units.

Overview and prerequisites

This section provides special placement information for the SCSI controllers and auxiliary-write cache adapters listed in Table 1.

If you are installing a new feature, ensure that you have the software required to support the new feature and that you determine if there are any existing PTF prerequisites. To do this, use the IBM® Prerequisite Web site at http://www-912.ibm.com/e_dir/eServerPrereq.nsf Link outside information center .

Use the list in Table 1 to cross-reference adapter feature codes with their CCIN numbers and descriptions. See also the adapter tables in Supported adapters for more detailed descriptions, notes, and restrictions for these adapters.

Then go to one of the following system or expansion unit tables to determine which PCI slots can accommodate these adapters.

5094 or 5294 expansion unit
5096 or 5296 expansion unit
5088 or 0588 expansion unit
5095 or 0595 expansion unit
5790 expansion unit
5796 expansion unit
9406-MMA system unit
9407-M15 and 9408-M25 system units
9409-M50 system units

Attention: Place these adapters only in an allowed slot. Placing these adapters in an unsupported slot may result in early-life, adapter failure.

Table 1. High performance SCSI controllers.
Feature codes	CCIN numbers	Description	Variables
2780	2780	PCI-X Ultra 4 RAID Disk Unit Controller	IOP controlled
5580, 5590	2780 and 574F	2780 Disk Controller with a secondary, auxiliary-write cache IOA	IOP controlled
5738	571E	PCI-X Ultra320 SCSI Disk Controller	IOP controlled
5582	571E and 574F	5738 Disk Controller with a secondary, auxiliary-write cache IOA	IOP controlled
5777	571E	PCI-X Ultra320 SCSI Disk Controller	IOPless
5583	571E and 574F	5777 Disk Controller with a secondary, auxiliary-write cache IOA	IOPless
5739, 5746, 5781, 5799	571F and 575B	PCI-X Ultra320 SCSI Disk Controller with auxiliary-write cache Double-wide adapter. 571F is the controller. 575B is the auxiliary-write cache.	IOP controlled
5778, 5782, 5800	571F and 575B	PCI-X Ultra320 SCSI Disk Controller with auxiliary-write cache Double-wide adapter. 571F is the controller. 575B is the auxiliary-write cache.	IOPless
0650, 0651	571F and 575B	PCI-X Ultra320 SCSI Disk Controller with auxiliary-write cache Double-wide adapter. 571F is the controller. 575B is the auxiliary-write cache.	Direct attach

5094 or 5294 expansion unit

Adapters are supported in the slots shown in the Allowed slots column.

CCIN numbers	Description	Variables	Allowed slots
2780	PCI-X Ultra 4 RAID Disk Unit Controller	IOP controlled	2, 3, 4, 6, 7, 8, 9, 12, 13, 14, 15
2780	PCI-X Ultra 4 RAID Disk Unit Controller	AIX® or Linux® controlled	2, 3, 4, 5, 6, 7, 8, 9, 11, 12, 13, 14, 15
574F	Auxiliary-Write Cache IOA	IOP controlled	2, 3, 4, 6, 7, 8, 9, 12, 13, 14, 15
574F	Auxiliary-Write Cache IOA	IOPless or direct attach	1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 12, 13, 14, 15
571E	PCI-X Ultra320 SCSI Disk Controller	IOP controlled	3, 6, 7, 8, 9
571E	PCI-X Ultra320 SCSI Disk Controller	IOPless or direct attach	1, 3, 5, 6, 7, 8, 9
571F and 575B	PCI-X Ultra320 SCSI Disk Controller with auxiliary-write cache	IOP controlled double-wide^*	2, 3, 4, 8, 9
571F and 575B		IOPless double-wide^*	1, 2, 3, 4, 5, 6, 8, 9
^* Double-wide adapter, requires 2 adjacent slots. The SCSI controller side of the adapter pair requires a 64-bit slot. Slots with bold numbers can be used for the SCSI controller side of the adapter. Slots where the number is underlined can be used for either side of the adapter. The remaining slot numbers can be used for the cache side (575B) of the adapter.

5096 or 5296 expansion unit

The 2780, 574F, and 571E adapters are not supported on the 5096 or 5296.

The double-wide 571F/575B adapter is supported in the slots shown in the Allowed slots column.

CCIN numbers	Description	Variables	Allowed slots
571F and 575B	PCI-X Ultra320 SCSI Disk Controller with auxiliary-write cache	IOP controlled double-wide^*	2, 3, 4, 8, 9
571F and 575B		IOPless double-wide^*	1, 2, 3, 4, 5, 6, 8, 9
^* Double-wide adapter, requires 2 adjacent slots. The SCSI controller side of the adapter pair requires a 64-bit slot. Slots with bold numbers can be used for the SCSI controller side of the adapter. Slots where the number is underlined can be used for either side of the adapter. The remaining slot numbers can be used for the cache side (575B) of the adapter.

5088 or 0588 expansion unit

The 2780, 574F, and 571E adapters are not supported on the 5088 or 0588.

The double-wide 571F/575B adapter is supported in the slots shown in the Allowed slots column.

CCIN numbers	Description	Variables	Allowed slots
571F and 575B	PCI-X Ultra320 SCSI Disk Controller with auxiliary-write cache	IOP controlled double-wide^*	8, 9
571F and 575B		IOPless double-wide^*	8, 9
^* Double-wide adapter, requires 2 adjacent slots. The SCSI controller side of the adapter pair can be placed in slot 8. The cache side of the adapter would then go in slot 9.

5095 or 0595 expansion unit

The following adapters are supported in the slots shown in the Allowed slots column.

CCIN numbers	Description	Variables	Allowed slots
571F and 575B	PCI-X Ultra320 SCSI Disk Controller with auxiliary-write cache	IOP controlled double-wide^*	2, 3, 4
571F and 575B		IOPless double-wide^*	1, 2, 3, 4
571E	PCI-X Ultra320 SCSI Disk Controller Maximum of one 571E	IOP controlled	2, 3, 4
571E	PCI-X Ultra320 SCSI Disk Controller Maximum of one 571E	IOPless or direct attach	1, 2, 3, 4
2780	PCI-X Ultra 4 RAID Disk Unit Controller	IOP controlled	2, 3, 4, 7, 8
2780	PCI-X Ultra 4 RAID Disk Unit Controller	AIX or Linux controlled	1, 2, 3, 4, 6, 7, 8
574F	Auxiliary-Write Cache IOA	IOP controlled	2, 3, 4, 7, 8
574F	Auxiliary-Write Cache IOA	IOPless or direct attach	1, 2, 3, 4, 6, 7, 8
^* Double-wide adapter, requires 2 adjacent slots. Slots with bold numbers can be used for the SCSI controller side of the adapter. Slots where the number is underlined can be used for either side of the adapter. The remaining slot numbers can be used for the cache side (575B) of the adapter.

5790 expansion unit

The 2780, 574F, and 571E adapters are not supported on the 5790.

The double-wide 571F/575B adapter is supported in the slots shown in the Allowed slots column.

CCIN numbers	Description	Variables	Allowed slots
571F and 575B	PCI-X Ultra320 SCSI Disk Controller with auxiliary-write cache	IOP controlled double-wide^*	2, 3, 6, 7
571F and 575B		IOPless double-wide^*	1, 2, 3 5, 6, 7
^* Double-wide adapter, requires 2 adjacent slots. The SCSI controller side of the adapter pair requires a 64-bit slot. Slots with bold numbers can be used for the SCSI controller side (571F) of the adapter. Slots where the number is underlined can be used for either side of the adapter. The remaining slot numbers can be used for the cache side (575B) of the adapter.

5796 expansion unit

The 2780, 574F, and 571E adapters are not supported on the 5796.

The double-wide 571F/575B adapter is supported in the slots shown in the Allowed slots column.

CCIN numbers	Description	Variables	Allowed slots
571F and 575B	PCI-X Ultra320 SCSI Disk Controller with auxiliary-write cache	IOPless double-wide^*	1, 2, 3, 4, 5, 6
^* Double-wide adapter, requires 2 adjacent slots. The SCSI controller side of the adapter pair requires a 64-bit slot. Slots with bold numbers can be used for the SCSI controller side (571F) of the adapter. Slots where the number is underlined can be used for either side of the adapter. The remaining slot numbers can be used for the cache side (575B) of the adapter.

9406-MMA system unit

The 2780, 574F, and 571E adapters are not supported in the 9406-MMA.

The double-wide 571F/575B adapter is supported in the slots shown in the Allowed slots column.

CCIN numbers	Description	Variables	Allowed slots
571F and 575B	PCI-X Ultra320 SCSI Disk Controller with auxiliary-write cache	IOPless double-wide^*	4, 5
^* Double-wide adapter, requires 2 adjacent slots. Slot 4 can be used for the SCSI controller side (571F) of the adapter. Slot 5 number can be used for the cache side (575B) of the adapter.

9407-M15 and 9408-M25 system units

The 2780, 574F, and 571E adapters are not supported in the 9407-M15 and 9408-M25.

The double-wide 571F and 575B adapter is supported in the slots shown in the Allowed slots column.

CCIN numbers	Description	Variables	Allowed slots
571F and 575B	PCI-X Ultra320 SCSI Disk Controller with auxiliary-write cache	IOPless double-wide^*	4, 5
^* Double-wide adapter, requires 2 adjacent slots. Slot 4 can be used for the SCSI controller side (571F) of the adapter. Slot 5 number can be used for the cache side (575B) of the adapter.

9409-M50 system units

The 2780, 574F, and 571E adapters are not supported in the 9409-M50.

The double-wide 571F and 575B adapter is supported in the slots shown in the Allowed slots column.

CCIN numbers	Description	Variables	Allowed slots
571F and 575B	PCI-X Ultra320 SCSI Disk Controller with auxiliary-write cache	IOPless double-wide^*	4, 5
^* Double-wide adapter, requires 2 adjacent slots. Slot 4 can be used for the SCSI controller side (571F) of the adapter. Slot 5 number can be used for the cache side (575B) of the adapter.