Users Guide

1. With library power OFF and the power cord unplugged, loosen the three thumb screws (▌5▐), grasp
two of the thumb screws, pull the power supply out half way, reseat the power supply, and tighten
the three thumb screws.
2. Ensure the power cord is plugged in at the power supply (▌6▐) and at the electrical outlet, then turn
library power ON.
a. For power supplies with LED's, the "Blue" LED will be lit if AC power is good.
b. If your power supply does not have LED's, feel for air flowing out of the cooling fan grill on the
rear of the library (▌4▐). AC is good if air is flowing from the cooling fan grill.
3. If power appears to be missing
a. Plug the power cord into another electrical outlet.
b. If power is still missing, plug another device into the outlet to test.
c. If the outlet tests OK, try another power cord with the library.
4. For power supplies with LED's, if the "Amber" LED is lit, replace the power supply (refer to
“Replacing a Power Supply” on page 186).
5. If your power supply has no LED's, and you have verified that the electrical outlet works properly,
but the power supply is still failing, replace it (refer to “Replacing a Power Supply” on page 186).
6. If the power supply seems to be delivering power to the library (Operator Control Panel and front
panel LED's may be functioning); however, air does not flow from the power supply cooling fan grill
on the rear of the library, replace the power supply (refer to “Replacing a Power Supply” on page
186).
7. If the power supply seems to be delivering power to the library (Operator Control Panel and front
panel LED's may be functioning), and air is flowing from the power supply cooling fan grill on the
rear of the library, observe the "Green" LED (lowest of the three). If it is lit, the power supply is OK.
Note: If your library has -04 level redundant power supplies (see label on top of power supply), it is
normal for the one in "Standby" mode to turn its "Green" LED off. You can test this power supply by
pulling the power connector from the other "Active" power supply. The power supply that was in
"Standby" mode will now become "Active", and its "Green" LED should light. If it doesn't, replace it
(refer to “Replacing a Power Supply” on page 186).
If your library has -05 level redundant power supplies, the "Green" LED will be ON on both power
supplies. If both "Green" LEDs are not ON, replace the failed power supply (refer to “Replacing a
Power Supply” on page 186).
8. If the "Green" LED is not lit, and it is the only one in the Library, replace it (refer to “Replacing a
Power Supply” on page 186).
Isolating Drive Sled Problems
Prior to replacing a drive sled CRU, verify that the following activities have been performed:
1. BEFORE POWERING OFF THE LIBRARY, write the drive dump to flash. It is important to preserve
the drive dump on the drive for analysis by Technical Support.
Note: If you are instructed by Dell Technical Support to copy the drive dump to your host computer,
use one of the following methods:
v Web User Interface: Refer to “Service Library: Save Drive Dump” on page 131.
v ITDT: Refer to “Using the ITDT Firmware Update, Dump Retrieval and Drive Test Tool ” on page
177.
2. Ensure that the drive firmware is at the latest level. To determine current library and drive firmware
version using the Operator Control Panel:
v Library firmware: Monitor > Library > Identity
v Drive firmware: Monitor > Drives > Identity (select a drive) Drive firmware is identified in the
FW Rev field.
Troubleshooting 157