IBM FAStT500 User Guide - Page 49

Replacing controller unit components, Handling static-sensitive devices, RAID Controller - storage server

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Chapter 3. Replacing controller unit components The controller unit consists of two RAID controllers, a cooling system, mini-hubs, GBICs, and a power system. This chapter includes detailed instructions on replacing these components. Handling static-sensitive devices Attention: Static electricity can damage electronic devices and your system. To avoid damage, keep static-sensitive devices in their static-protective package until you are ready to install them. To reduce the possibility of electrostatic discharge, observe the following precautions: • 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 printed circuitry. • Do not leave the device where others can handle and possibly damage the device. • While the device is still in its static-protective package, touch it to an unpainted metal part of the storage server for at least two seconds. (This drains static electricity from the package and from your body.) • Remove the device from its package and install it directly into your storage server without setting it down. If it is necessary to set the device down, place it in its staticprotective package. Do not place the device on your storage server cover or any metal surface. • Take additional care when handling devices during cold weather because heating reduces indoor humidity and increases static electricity. RAID Controller The controller unit supports redundant array of independent disks (RAID) technology. The controller unit contains two RAID controllers. Each controller comes in a removable, portable unit, called a controller CRU, as shown in Figure 16 on page 31. The controller CRUs slide into one of two controller slots on the front of the controller unit and attach to hosts through Fibre Channel connections. Two handles lock the controller in place. Each controller slot has a controller slot designation © Copyright IBM Corp. 2000, 2002 29

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©
Copyright IBM Corp. 2000, 2002
29
Chapter 3. Replacing controller unit components
The controller unit consists of two RAID controllers, a cooling system, mini-hubs, GBICs,
and a power system. This chapter includes detailed instructions on replacing these
components.
Handling static-sensitive devices
Attention:
Static electricity can damage electronic devices and your system. To avoid
damage, keep static-sensitive devices in their static-protective package until you are ready
to install them.
To reduce the possibility of electrostatic discharge, observe the following precautions:
•
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 printed circuitry.
•
Do not leave the device where others can handle and possibly damage the device.
•
While the device is still in its static-protective package, touch it to an unpainted metal
part of the storage server for at least two seconds. (This drains static electricity from
the package and from your body.)
•
Remove the device from its package and install it directly into your storage server
without setting it down. If it is necessary to set the device down, place it in its
staticprotective package. Do not place the device on your storage server cover or any
metal surface.
•
Take additional care when handling devices during cold weather because heating
reduces indoor humidity and increases static electricity.
RAID Controller
The controller unit supports redundant array of independent disks (RAID) technology. The
controller unit contains two RAID controllers.
Each controller comes in a removable, portable unit, called a controller CRU, as shown in
Figure 16 on page 31
. The controller CRUs slide into one of two controller
slots on the
front of the controller unit and attach to hosts through Fibre Channel connections. Two
handles lock the controller in place. Each controller slot has a controller slot designation