Figure 1 shows an EXP400 SCSI disk drive enclosure with two hot-swappable ESM modules.
Each ESM has a SCSI connector that supports up to seven Ultra320 SCSI hard disk drives. This unit can be connected to a DS400 storage subsystem. For troubleshooting help on the EXP400, click on the following link:
ftp://ftp.software.ibm.com/pc/pccbbs/pc_servers_pdf/90p3548.pdf
Figure 1. EXP400 SCSI drive enclosure
Figure 2 shows the locations of the controller connections in a DS400 Fibre Channel storage subsystem. Table 1 shows the WWNN and WWPN assignment convention.
Figure 2. DS400 controller connection locations
Table 1 - WWNN and WWPN assignment convention
Node and
Port Name Convention |
Enclosure |
FC0 |
FC1 |
Node Name |
20000000d1262472 |
NA |
NA |
A |
NA |
21000000d1262472 |
21010000d1262472 |
B Controller Port names |
NA |
21020000d1262472 |
21030000d1262472 |
Figure
3 shows a configuration containing both a DS400 controller unit
and an EXP400 expansion unit. The host connection to the DS400 uses optical
cables to the controller SFPs. The connection to the
EXP400 uses SCSI cables.