IBM TotalStorage 300 Service Manual page 83

Attention: When you install an adapter in the engine, be sure that it is
completely and correctly seated in the system-board connector before you
apply power. Incomplete insertion might cause damage to the system board
or the adapter.
c. Insert and tighten the expansion-slot screw on the top of the adapter
bracket.
8. Connect any needed cables to the adapter..
Attention: Route cables so that the flow of air from the fans is not blocked.
9. If you have other options to install, do so now; otherwise, go to "Installing the
cover and bezel" on page 84.
Note: You can install up to four optional adapters on each engine.
Replacing the hard disk drive
This section gives the procedure for replacing a defective hard disk drive.
Notes:
1. To minimize the possibility of damage to the hard disk drive, leave the engine in
the rack while replacing the hard disk drive.
2. You do not have to turn off the engine to install hot-swap drives. However, you
must turn off the engine when performing any steps that involve installing or
removing cables.
Refer to the following illustration to replace a hard disk drive.
Note: The illustrations in this document might differ slightly from your hardware.
To replace a hard disk drive, perform the following:
Attention: When you handle Electrostatic Discharge-Sensitive devices (ESD),
take precautions to avoid damage from static electricity. For details on handling
these devices, see "Handling electrostatic discharge-sensitive devices" on page 177.
1. Review the information in "Before you begin" on page 67.
Attention: To maintain proper system cooling, do not operate the engine for
more than two minutes without either a drive or a filler panel installed.
2. Lift up on the tray handle until it unlocks.
3. Gently pull the drive-tray assembly out of the bay until the drive disconnects
from the backplane and then slide the drive assembly out of the engine.
Chapter 5. Installing and replacing IBM NAS 300 components
Drive-tray assembly
Drive handle
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