Справочник Пользователя для Qualstar 501440 Rev. G

 

The 

Id Mode

 menu item has two selections, 

FIXED

 or 

SOFT

. If the mode is FIXED, 

the 

Loop Id

 entry is displayed. If the 

Id Mode

 is SOFT, the Loop ID is automati-

cally assigned by the FCO. 

The 

Id Mode

 menu item has two selections, 

FIXED

 or 

SOFT

. If the mode is FIXED, 

the 

Loop Id

 entry is displayed. If the 

Id Mode

 is SOFT, the Loop ID is automati-

cally assigned by the FCO. 

During the Fibre Channel Arbitrated Loop (FC-AL) initialization process, a unique 
Arbitrated Loop Physical Address (AL_PA) value is assigned to each port on the loop. 
Not all of the 256 hex values are allowed as AL_PA values per FC-AL. The Loop Id 
value is used to represent the 126 addresses that the FCO can use. Table 7-1 shows 
how a Loop Id value maps to an AL_PA. If the Id Mode is  “SOFT”, the FCO will at-
tempt to obtain an available Loop Id, in the following order: 0, 1, 2, etc. 

During the Fibre Channel Arbitrated Loop (FC-AL) initialization process, a unique 
Arbitrated Loop Physical Address (AL_PA) value is assigned to each port on the loop. 
Not all of the 256 hex values are allowed as AL_PA values per FC-AL. The Loop Id 
value is used to represent the 126 addresses that the FCO can use. Table 7-1 shows 
how a Loop Id value maps to an AL_PA. If the Id Mode is  “SOFT”, the FCO will at-
tempt to obtain an available Loop Id, in the following order: 0, 1, 2, etc. 

To establish the SCSI device configuration the Fibre Channel Option is commanded to 
“Rescan” its three SCSI device buses. The three SCSI device channels, starting with 
Channel 0, begin scanning for SCSI devices using ascending SCSI Target Ids. After all 
three channels have been scanned, the FCO builds a SCSI device table, that it uses to 
map SCSI Targets to the host as logical devices (LUNs). 

To establish the SCSI device configuration the Fibre Channel Option is commanded to 
“Rescan” its three SCSI device buses. The three SCSI device channels, starting with 
Channel 0, begin scanning for SCSI devices using ascending SCSI Target Ids. After all 
three channels have been scanned, the FCO builds a SCSI device table, that it uses to 
map SCSI Targets to the host as logical devices (LUNs). 

  

C••••••Fibre•Channel 

•Device Left 

•Device Right 

 L Id Mode 0:   SOFT 

 L Loop Id 0:    nnn 

 L Topology 0:  LOOP 

 R Id Mode 0:   SOFT 

 R Loop Id 0:    nnn 

 R Topology 0:  LOOP 

C••••••Fibre•Channel 

•Device 

 Id Mode 0:     SOFT 

 Loop Id 0:      nnn 

 Topology 0:    LOOP 

  

For single bay libraries or dual bay libraries with only one Fibre Channel Option in-
stalled, press the V (UP) or W (DOWN) key to move the pointer to 

Device

. Press the 

ENTER key to enter the 

Configuration\Fibre Channel\Device

 menu. 

For single bay libraries or dual bay libraries with only one Fibre Channel Option in-
stalled, press the V (UP) or W (DOWN) key to move the pointer to 

Device

. Press the 

ENTER key to enter the 

Configuration\Fibre Channel\Device

 menu. 

For dual bay libraries with two Fibre Channel Options installed, press the V (UP) or 
W

 (DOWN) key to move the pointer to either 

Device Left

 or 

Device Right

. 

The left and right orientation is as viewed from the front of the library. Press the EN-
TER key to enter the 

Configuration\Fibre Channel\Device (Left or 

Right)

 menu. 

For dual bay libraries with two Fibre Channel Options installed, press the V (UP) or 
W

 (DOWN) key to move the pointer to either 

Device Left

 or 

Device Right

. 

The left and right orientation is as viewed from the front of the library. Press the EN-
TER key to enter the 

Configuration\Fibre Channel\Device (Left or 

Right)

 menu. 

The 

Configuration\Fibre Channel\Device

 menu panels display a list of 

SCSI devices attached to the Fibre Channel Option. A TLS library with a single Fibre 
Channel Option displays the title 

CFC···········Device

. A dual-bay library 

with two Fibre Channel Options installed, displays the title 

CFC······Device 

Left

 or 

CFC·····Device

 

Right

 to correspond to the Fibre Channel Option in 

the left and right side. 

The 

Configuration\Fibre Channel\Device

 menu panels display a list of 

SCSI devices attached to the Fibre Channel Option. A TLS library with a single Fibre 
Channel Option displays the title 

CFC···········Device

. A dual-bay library 

with two Fibre Channel Options installed, displays the title 

CFC······Device 

Left

 or 

CFC·····Device

 

Right

 to correspond to the Fibre Channel Option in 

the left and right side.