Cabling A Raid Or Scsi Adapter; Cabling A Single Scsi Channel Using The Standard Hot-Swap Drive Scsi Backplane - IBM eServer xSeries 255 Option Installation Manual

15. If you have other options to install or remove, do so now; otherwise, go to

Cabling a RAID or SCSI adapter

You can install an optional RAID or SCSI adapter in your server to control the
internal hot-swap hard disk drives, for example, so that you can configure the
internal hot-swap hard disk drives into disk arrays. The illustrations in this section
show the cabling for internal hot-swap hard disk drives. You can also cable a RAID
or SCSI adapter to external hard disk drives. See your RAID or SCSI adapter
option documentation for complete instructions about installing a RAID or SCSI
adapter in your server and for additional information about RAID or SCSI adapters.
Your server comes with one SCSI cable. One end of this cable is attached to the
connector on the standard SCSI backplane, and the other end is attached to the
internal SCSI channel connector (J15) on the system board.
The following procedures describe the single-channel cable routing that is
necessary when you install a RAID or SCSI adapter. The illustrations in this section
are examples. The cabling that you use for your server depends on your system
configuration.
Notes:
1. For details on connecting two SCSI channels, see "Working with the optional
2. See the documentation that comes with your adapter for any cabling
3. Cable identifiers are printed on the cables that come with your server and
Cabling a single SCSI channel using the standard hot-swap drive
SCSI backplane
Complete the following steps to cable a single SCSI channel on a RAID or SCSI
adapter using the standard hot-swap drive SCSI backplane:
22
IBM xSeries 255 Type 8685: Option Installation Guide
If you installed a hot-plug adapter or used the hot-add feature, enable the
PCI-X slot from your operating system. (See the documentation that comes
with your operating system for information about enabling a hot-plug PCI-X
slot.) Make sure that the power-on LED for the hot-plug PCI-X slot comes on.
If the power-on LED does not come on, see the Hardware Maintenance
Manual and Troubleshooting Guide on the IBM xSeries Documentation CD for
additional information.
"Completing the installation" on page 68.
xSeries 6-Pack Hot-Swap Hard Drive Expansion Kit" on page 28.
instructions.
options. Use these identifiers to connect the cables to the correct connectors.
For example, the hard disk drive cables are labeled "HDD option."
1. Review the information beginning with "Before you begin" on page 13 through
"Handling static-sensitive devices" on page 14.
2. Turn off the server and peripheral devices and disconnect all power cords and
external cables.
3. If your server is a tower model, continue with the next step.
If your server is a rack model and you have already installed the server in a
rack enclosure, you must disconnect the cable-management-arm bracket from
the server.
a. Disconnect the cable-management-arm bracket from the server.