Lenovo Flex System EN2092 User Manual

Also see for Flex System EN2092: Product guide

Contents

v Each of the module bays on the rear of the Flex System chassis contains either amodule or a filler module.v A removed hot-swap module is replaced with an identical module or fillermodule within 1 minute of removal.v A removed hot-swap compute node is replaced with another compute node orfiller node within 1 minute of removal.v The ventilation areas on the sides of the compute node are not blocked.v You have followed the reliability guidelines in the documentation that comeswith the Flex System chassis.Cable requirements for the switch are described in the Configuration and OptionsGuide at http://www.ibm.com/servers/eserver/xseries/cog/. See thedocumentation that comes with the Flex System chassis for cable-routinginformation.Handling static-sensitive devicesAttention: Static electricity can damage the Flex System chassis and otherelectronic devices. To avoid damage, keep static-sensitive devices in theirstatic-protective packages until you are ready to install them.To reduce the possibility of electrostatic discharge, observe the followingprecautions:v Limit your movement. Movement can cause static electricity to build up aroundyou.v Handle the device carefully, holding it by its edges or its frame.v Do not touch solder joints, pins, or exposed printed circuitry.v Do not leave the device where others can handle and damage it.v While the device is still in its static-protective package, touch it to an unpaintedmetal surface of the Flex System chassis or an unpainted metal surface on anyother grounded rack component in the rack that you are installing the device infor at least 2 seconds. This drains static electricity from the package and fromyour body.v Remove the device from its package and install it directly into the Flex Systemchassis without setting down the device. If it is necessary to set down thedevice, put it back into its static-protective package. Do not place the device onthe Flex System chassis or on a metal surface.v Take additional care when you handle devices during cold weather. Heatingreduces indoor humidity and increases static electricity.v Some types of Flex System chassis come with electrostatic discharge (ESD)connectors. If your unit is equipped with an ESD connector, see thedocumentation that comes with the Flex System chassis for using the ESDconnector.Installing a switchNote: The following illustration shows how to install a switch in a Flex Systemchassis. The appearance of your Flex System chassis might be different; seethe documentation for your Flex System chassis for additional information.Use the following instructions to install a switch in the Flex System chassis. Youcan install a switch while the Flex System chassis is powered on. For redundancyChapter 2. Installing the switch 7