Manx SA7x Installationsanleitung PDF herunterladen (Seite 196)

8.1 Troubleshooting the SF7x Storage Enclosure

Table 8–1 (Cont.) Troubleshooting Chart

Symptoms Probable Causes Corrective Actions

2. Bad fan. 2. Replace fan.

3. Bad TTM. 3. Conﬁgure a new TTM and

replace.

Fan is not spinning and

power supply LED is not

lit, but SF7x enclosure is

on.

1. Bad power supply. 1. Replace power supply.

2. Bad power cord. 2. Replace cord.

3. Bad TTM. 3. Conﬁgure a new TTM and

replace.

Note

The DSSI bus meter, or DBM, is a small, easily portable device

used to look at bus signals in real-time as well as to verify DSSI ID

numbers. The DBM can quickly locate faulty cables or duplicate DSSI

ID numbers on a given DSSI bus.

8.1.1 Removing an Rx7x Disk ISE from an SF7x Storage Enclosure

This section provides the procedure for removing an Rx7x disk ISE from an

SF7x storage enclosure.

WARNING

Take all possible ESD precautions when unpacking the Rx7x disk ISEs.

Wear a correctly grounded ESD strap.

Have an orderly shutdown of the SF7x enclosure containing the disk

ISE performed. Refer to the system documentation.

1. Power down the SF7x enclosure.

a. Take each existing Rx7x disk ISE on that DSSI bus off-line (Figure 8–1)

by pressing and releasing each Ready button on the operator control

panel (OCP). The button indicators go out.

b. Press and release the drive dc power switches for all the ISEs on that

DSSI bus.

8–4 Installation Troubleshooting

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Manx SA7x Installationsanleitung Seite 196