Silicon Graphics TP9400 RAID Owner's Manual page 91

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Note: The minihubs pictured in this procedure are all GBIC minihubs. However, the
same procedures apply to SFP minihubs.
Use this procedure to replace either a failed host-side or drive-side minihub canister.
Before starting this procedure, read "Minihub Canister" on page 22.
Caution: Electrostatic discharge can damage sensitive components. Use appropriate
antistatic precautions before handling any components.
1. Remove or open the rear access panel on the rack.
Caution: Bending or damaging Fibre Channel cables can result in degraded
performance or data loss. Fibre Channel cables are fragile and can break easily.
Handle the cables carefully. Do not pinch them with tie wraps, step on them, or bend
them at sharp angles.
2. Check the minihub indicators at the rear of the controller enclosure. On a failed
minihub, the Interface Fault indicator will be on and the Loop Good indicator will
be off.
3. Unpack the new minihub canister and, if available, read the instructions shipped
with the new minihub. If necessary, modify the remaining steps to meet the system
requirements. Kits often contain the most current servicing information. If the kit
instructions conflict with those in this procedure, use the kit instructions.
Caution: To prevent possible data loss, do not accidentally remove cables from a
GBIC module that is not failed.
4. Remove the interface cables from the Fibre Channel connections on the failed
minihub (Figure 4-13 on page 68).
5. Remove each GBIC module or SFP transceiver from the minihub slot (Figure 4-13 on
page 68).
6. Unfasten the captive screw on the minihub and remove it from the chassis
(Figure 4-15).
Replacing a Failed Minihub Canister
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