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StorageWorks SCSI Buses

5.4 SBB Shelf with a Single SCSI Bus

Use the following procedure to conﬁgure a single SBB shelf for seven devices on a

single SCSI bus (see Figure 5–3):

1. Turn off the shelf power by disconnecting the power cable from the shelf

power supplies.

2. Remove the blowers as described in Section 3.2.

3. Discharge any static buildup by momentarily touching a ﬁnger to a blank

space on the backplane.

4. Make sure that the SHELF_OK jumpers are installed correctly on either the

backplane or on both the terminator board and the jumper board as described

in Chapter 2.

5. Install the BA35X–MC jumper board in the backplane connector behind

slot 5.

6. Install the BA35X–MB terminator board in the backplane connector behind

slot 1.

7. Connect the SCSI cable to the upper connector.

8. Replace the blowers as described in Section 3.2.

9. Turn on the power and verify that all the devices are active.

Figure 5–3 Single SCSI Bus

0123456

POWER

CXO-3596B-MC

7-DEVICE BUS INPUT

BUS LENGTH: 0.9 m (34.7 in)

JA1

JB1

(7)

StorageWorks SCSI Buses 5–7

1 2 ... 44 45 46 47 48 49 50 51 52 53 54 ... 73 74

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Digital Equipment Corporation Storage Works Guide de l'utilisateur Page 49