ADIC FCR 200, Operator'S Manual

Page: 69 / 140

Auto Addressing 5-7
The Indexed Addressing table has the structure shown in
Table 5-1. The FCR200 will allow up to 80 device entries to be
mapped. The index table can be manually edited, and is then
saved to FLASH memory. Configuration assists allow for the
table to be filled in order of increasing target, or LUN, as may
be desired for the specific requirements needed. An assist is
also provided to perform device discovery, and fill the table in
the order that devices are discovered on a SCSI bus.
Indexed Addressing mode is recommended for environments
where device configuration may change, and a fixed mapping
from the application to the target devices is required. An
example of such an environment is where hot plug devices
may be used, thereby changing the order of devices on a SCSI
bus.
Auto Addressing
The Auto Addressing option is similar to Indexed
Addressing, but with the distinction that the table used is
created through SCSI device discovery upon power up or
reset, and not otherwise retained. As the unit performs device
discovery on a SCSI bus, the Index table is filled with adjacent
FCP LUNs referencing each subsequent SCSI device. The host
system will then detect every attached device without voids,
allowing full device discovery to the host. This allows easy
configuration in environments where device ordering is not
important, and hot plugging of SCSI devices will not occur.
Configuration allows for discovery to be performed in order
of target or LUN, as desired for the specific environment.
Auto Addressing, target mode is configured as the default
mode of the FCR200.
14 0:15:0
15 0:0:1
16 0:1:1
(…) (…)
Table 5-1 Indexed Addressing
FPC LUN Value SCSI BUS:TARGET:LUN