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Maintenance and Upgrades

Drive tray screws ( two on each side)

Step 3

Install a new drive:

a) Place a new drive in the empty drive tray and install the four drive-tray screws.

b) With the ejector lever on the drive tray open, insert the drive tray into the empty drive bay.

c) Push the tray into the slot until it touches the backplane, and then close the ejector lever to lock the drive in place.

Remove and Replace a Power Supply

Two power supplies ship with the chassis; they are redundant and hot-swappable. One is the active power

supply and the other is the standby power supply (1+1).

Note

The S195 ships with one power supply, but you can add another one for redundancy.

The chassis also supports cold redundancy. Depending on the power being drawn by the chassis, one power

supply might actively provide all power to the system while the remaining power supply is put into a standby

state. For example, if the power consumption can be satisfied by power supply 1, then power supply 2 is put

into a standby state.

Caution

When you replace power supplies, do not mix power supply types in the chassis. Both power supplies must

be the same wattage and Cisco PID.

Trouble

Power supply health monitoring notifies you if the power supply loses power or malfunctions so that redundancy

is lost. Check the power supply cables to make sure they are functioning. If they are and errors are still

occurring, replace the power supply.

Safety Warnings

Warning

Take note of the following warnings:

Statement 1018 Supply Circuit

To reduce risk of electric shock and fire, take care when connecting units to the supply circuit so that

wiring is not overloaded.

Statement 1019 Main Disconnecting Device

The plug-socket combination must be accessible at all times, because it serves as the main disconnecting

device.

Cisco Web Security Appliance S195, S395, S695, and S695F Hardware Installation Guide

Remove and Replace a Power Supply

Drive removed from drive tray