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Chapter 9 Logical Unit Recognition
> 9.1 Displaying the Recognized Logical Units
ETERNUS DX Disk storage systems Server Connection Guide (Fibre Channel) for Linux
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Copyright 2010 FUJITSU LIMITED
P3AM-3842-05ENZ0
• "dmesg" command for LUN display
Use the "dmesg" command in order to confirm whether Linux has recognized the LUNs in the
ETERNUS DX Disk storage systems.
The following shows an example:
• "cat" command for LUN display
Use the "cat" command to display the "/proc/scsi/scsi" file, where you can confirm the
recognized SCSI devices.
The following shows an example of this.
At this point the Multipath Driver has not been set up yet, so two SCSI devices are shown for
each connected LUN (i.e. if there are 3 LUNs, 6 SCSI devices are shown).
#dmemsg|less
:
Emulex LightPulse FC SCSI/IP 4.21q
PCI:Found IRQ 10 for device 03:06.0
!lpfc0:031:Link Up Event received Data:1 1 1 2
PCI:Found IRQ 5 for device 04:02.0
IRQ routing conflict for 04:02.0,have irq 10,want irq 5
!lpfc0:031:Link Up Event received Data:1 1 1 2
scsi3:Emulex LPFC SCSI on PCI bus 03 device 30 irq 10
scsi4:Emulex LPFC SCSI on PCI bus 04 device 10 irq 10
Vender: FUJITSU Model: ETERNUS_DX400 Rev: 0000
Type: Direct-Access ANSI SCSI revision: 03
Vender: FUJITSU Model: ETERNUS_DX400 Rev: 0000
Type: Direct-Access ANSI SCSI revision: 03
# cat /proc/scsi/scsi
Attached devices:
Host: scsi2 Channel: 00 Id: 05 Lun: 00
Vender: HP Model: SAFTE; U160/M BP Rev: 1023
Type: processor ANSI SCSI revision: 02
Host: scsi2 Channel: 02 Id: 00 Lun: 00
Vender: MegaRAID Model: LD0 RAID0 8677R Rev: E
Type: Direct-Access ANSI SCSI revision: 02
Host: scsi3 Channel: 00 Id: 00 Lun: 00
Vender: FUJITSU Model: ETERNUS_DX400 Rev: 0000
Type: Direct-Access ANSI SCSI revision: 03
Host: scsi3 Channel: 00 Id: 00 Lun: 01
Vender: FUJITSU Model: ETERNUS_DX400 Rev: 0000
Type: Direct-Access ANSI SCSI revision: 03