IBM SAN Volume Controller 2145-CG8 Hardware Maintenance Manual page 108

DANGER
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| Multiple power cords. The product might be equipped with multiple power cords. To remove all
hazardous voltages, disconnect all power cords. (L003)
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| To remove the SAN Volume Controller 2145-CG8 or 2145-CF8 cover, complete the following steps:
1. Read the safety information to which "Preparing to remove and replace parts" on page 26 refers.
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2. Optional: Follow the procedure in MAP 5350 in the IBM System Storage SAN Volume Controller
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Troubleshooting Guide to verify that the node data is mirrored and synchronized, and that there are no
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| dependent volumes before turning off the node.
Most maintenance procedures that require you to remove the cover are performed with:
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v The node turned off
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v The power cables disconnected
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| v The data cables connected
| Depending on the part that you are removing or replacing, you might be able to leave the power
cords and the data cables connected. The removal or replacement procedure for each part describes
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what to do about power, the power cords, and the data cables.
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| If you are removing or replacing a hot-swap fan, for example, you can leave the node turned on, the
power cords connected, and the data cables connected. However, do not run the node for longer than
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thirty minutes without the cover. If you must take a longer time, turn off the node as directed in MAP
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| 5350.
| 3. Pull back the cable-management arm if you are working from the rear of the rack, or slide the node
out of the rack to the fully extended rail position if you are working from the front.
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You can perform most service actions when the node is fully extended from the rack on its slide rails.
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| 4. Optional: When the node is completely turned off, remove the cable-retention brackets and disconnect
the power cables, as described in "Removing the cable-retention bracket" on page 34.
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5. Optional: To make sure that you can replace all cables in the same ports from which they were
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removed, label the port position of each Fibre Channel and Ethernet cable; then remove all cables
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| from the back of the node.
6. Optional: Remove the node from the rack and place it on a flat, static-protective surface. See
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"Removing the SAN Volume Controller from a rack" on page 46.
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7. Press down firmly on the blue tab ( 2 in Figure 65 on page 79) that secures the cover ( 1 ) and slide
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| the cover toward the rear of the node until the cover disengages the chassis.
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IBM SAN Volume Controller Hardware Maintenance Guide
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