Installing Internal Drives
11. If you are connecting bank C serially to bank D in the server
(daisy-chaining banks C and D), attach a SCSI-2 cable from the
daisy-chain connector on bank C to the SCSI-2 input connector
on bank D.
Notes:
Bank C can connect to either bay B or to the
backplane in bank D. If bank C is connected to bay
B, it cannot be connected to bank D.
When you daisy chain two banks in a disk-array
model, you must start the ServeRAID configuration
program and specify which channel the banks are
connected to. You must also define the SCSI IDs for
each bank as LO or HI. (See “Changing the
ServeRAID Adapter Parameters” on page 124 for
more information.)
12. Refer to the following information for help in connecting the
cables properly in a disk-array model.
Example 1
: In the original cable routing in a disk-array
model, the backplane in bank C is cabled to Channel 3 on a
ServeRAID adapter. A DASD status cable (also known as a
system status cable) connects the adapter to the backplane.
Example 2:
A SCSI cable connects the adapter Channel 3 to
the backplane in bank C; a second SCSI cable connects
Channel 2 to the backplane in bank D. The external
connector on Channel 1 is available for connecting external
devices. A DASD status cable (also known as a system
status cable) connects the adapter to the backplanes in banks
C and D.
Example 3:
A SCSI cable connects the CD-ROM drive to
the system board. A daisy-chain cable connects the input
connector on the bank D backplane to the output connector
on the bank C backplane. A SCSI cable connects the input
connector on the bank C backplane to Channel 3 on the
ServeRAID adapter. A DASD status cable (also known as a
system status cable) connects the adapter to the backplanes
in banks C and D. Channel 1 on the ServeRAID adapter is
available for connecting external devices.
246
PC Server 520 User's Handbook for PCI/Micro Channel
Summary of Contents for PC Server 520
Page 1: ...PC Server 520 User s Handbook for PCI Micro Channel IBM...
Page 86: ...Installation Checklist 70 PC Server 520 User s Handbook for PCI Micro Channel...
Page 146: ...Using the Mini Configuration Program 130 PC Server 520 User s Handbook for PCI Micro Channel...
Page 190: ...Using the SCSISelect Utility Program 174 PC Server 520 User s Handbook for PCI Micro Channel...
Page 385: ...Installing Additional Test Programs 207 CMD 3 Chapter 7 Solving Problems 369...
Page 438: ...IBM Part Number 78H6336 Printed in U S A May 1996 78H6336...