IBM DR550 manual Dual node tape attachment

IBM System Storage DR550 Version 3.0 ------ 17 March 2006 Page 115

7316-TF3

7310-CR3

																Switch_1
	0		1		2	3	4		5	6			7
															A
															B
DRS_Engine_1											1			2	3		4	5	6
		IN						OUT				IN						OUT
				EXP100_1,1

IN

OUT

IN

OUT

EXP100_1,1

IN		OUT
	EXP100_1,1

IN

OUT

DS4100_1

Dual node tape attachment

Attaching tape to the DR550 (single node configuration) can be done with stand alone TS1120, LTO Gen 3, or 3592 drives or with these drives placed within a tape library such as the IBM 3584. IBM’s other tape solutions can also be attached in the same manner. Each port (5-7) on the Switch_1 within the DR550 is connected to port 1 on the on the drive. The second port on the drive (if available) is connected to one of the ports (5-7) on Switch_2. Should a failure occur on the FC path from Switch_1 to the drive, the tape job can be restarted using the second path.

7 3 1 6 -T F 3

																	S w itch _ 2
	0		1		2	3	4		5	6			7
																A
																B
D R S _ E n g in e _ 2											1			2		3		4	5	6
7 3 1 0 -C R 3
																	S w itch _ 1
	0		1		2	3	4		5	6			7
																A
																B
D R S _ E n g in e _ 1												1			2	3		4	5	6
		IN						O U T				IN							O U T
				E X P 1 0 0 _ 1 ,1

IN		O U T
	E X P 1 0 0_ 1 ,1

IN

O U T

IN

O U T

IN

O U T

E X P 1 00 _ 1 ,1

D S 4 1 0 0 _ 1

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