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• To ensure proper cooling, do not operate the Flex System Enterprise Chassis without a device or filler
installed in each bay. See the documentation for your Flex System Enterprise Chassis for additional
information.
• Make sure that the ventilation holes on the storage expansion node are not blocked.
• The compute node battery must be operational. If the battery becomes defective, replace it immediately.
For instructions, see the compute node Installation and Service Guide.
Handling static-sensitive devices
To reduce the possibility of damage from electrostatic discharge, observe these precautions.
Attention: Static electricity can damage the storage expansion node and other electronic devices. To avoid
damage, keep static-sensitive devices in their static-protective packages until you are ready to install them.
• When you work on a rack that has an electrostatic discharge (ESD) connector, use a wrist strap, especially
when you handle modules, optional devices, or compute nodes. To work correctly, the wrist strap must
have a good contact at both ends (touching your skin at one end and firmly connected to the ESD
connector on the front or back of the rack).
• Limit your movement. Movement can cause static electricity to build up around you.
• Handle the device carefully, holding it by its edges or its frame.
• Do not touch solder joints, pins, or exposed circuitry.
• Do not leave the device where others can handle and damage it.
• While the device is still in its static-protective package, touch it to an unpainted metal part of the Flex
System Enterprise Chassis or any unpainted metal surface on any other grounded rack component in the
rack in which you are installing the device for at least 2 seconds. This drains static electricity from the
package and from your body.
• Remove the device from its package and install it directly into the compute node without setting down the
device. If it is necessary to set down the device, put it back into its static-protective package. Do not
place the device on the compute node cover or on a metal surface.
• Take additional care when you handle devices during cold weather. Heating reduces indoor humidity
and increases static electricity.
Removing the cover from the storage expansion node
Use these instructions to remove the cover from the storage expansion node.
Before you begin
Before you remove the cover from the storage expansion node, complete the following steps:
1. Read "Safety" on page iii and "Installation guidelines" on page 7.
2. If the storage expansion node assembly is installed in an Flex System Enterprise Chassis, remove it
(see "Removing the storage expansion node assembly from the Flex System Enterprise Chassis" on
page 17 for instructions).
3. Carefully lay the storage expansion node assembly on a flat, static-protective surface.
Procedure
Press on the cover release and slide the cover toward the rear of the storage expansion node; then, lift the
cover away from the storage expansion node, as shown in the following illustration.
8
Flex System Storage Expansion Node Installation and Service Guide
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