HP RA7000 manual Mid-Bus RAID Cluster Layout Scsi Bus Interconnect

RA7000 / ESA10000 High Availability Solution Kit for HP-UX

2.2Mid-Bus RAID Cluster Layout - (SCSI Bus Interconnect)

To connect two HP hosts on the two ends of the SCSI bus (e.g., a Mid-Bus RAID cluster layout), with a RAID subsystem, reference Figure 2-1 and follow these steps:

1.Attach a Y-cable (BN21W-0B) to the HD68-pin host adapter on Host A.

2.Attach a Y-cable (BN21W-0B) to the HD68-pin host adapter on Host B.

3.Attach (compatible) end of a 5M adapter cable (BN38C-05) to one end of the Y-cable attached to Host A.

4.Connect the other end (VHDCI compatible) of the adapter cable to the end of a tri-link connector on a subsystem controller.

5.Attach (compatible) end of the short adapter cable (BN38E-0B) to one end of the Y-cable attached to Host B.

6.Connect the other end (VHDCI-compatible) of the adapter cable to the end of UltraSCSI cable BN37A-05.

7.Remove the terminator that occupies the tri-link connector on the subsystem controller.

8.Attach the remaining end of the VHDCI UltraSCSI cable attached to Host A to the available tri-link connector on the subsystem controller.

9.Connect a terminator (H879-AA) to the available end of the Y-cable on Host A, and to the available end of the Y-cable on Host B.

Figure 2–1 Mid-Bus RAID Cluster Layout - (SCSI Bus Interconnect)

RA7000 or E SA10000

HO ST AHO ST B Subsystem

H D68 H ost

Ada pter

BN 21W -0B	BN 37A -0E
	Tri-L ink
Y -Ca ble

H D 68 H ost

Adapter

BN 2 1W -0B

Y -Ca ble

Te rm inato r	BN3 8C -05	BN37A -05	BN 38E -0B	Term inato r
H 87 9-A A	V H D CI-to-H D 68	VH DC I-to-V HD C I	VH D C I-to-H D 68	H 879-AA
	Adapter C ab le	U ltraSC SI C able	A da pter Ca ble
				SH R - 1092

2–2 EK–HAHPU– MH. B01