User`s guide

20 Implementing an Open IBM SAN
You do not need to perform any special operations on the Compaq system to
view the ESS volumes. Ensure that the host Fibre Channel is already configured.
If it is not configured, you must perform the instructions that come with the card
to install the driver. Make all the hardware connections, configure the ESS, and
restart the host system. If you can see the disks when you restart, all the special
files are created automatically.
If you cannot restart the host system, you can configure the devices manually by
typing #scu scan edt. You can check to see if you can see the volumes by typing
#scu show edt. To create the device special files type #doconfig -d. No kernel
rebuild is necessary.
When the ESS is configured, ensure that you can see the disks from the Compaq
system. Wait for the system to restart or use the file command on the device
special files. During restart, the following messages should be displayed:
emx0 at pci1 slot 7 KGPSA-BC : Driver Rev 1.21 : F/W Rev 2.22X1(1.13) : wwn
1000-0000-c922-d469
emx0: emx_assign_fcp_id: nport at DID 0x21300 assigned tgt id 10 - out of range
for CAM
scsi16 at emx0 slot 0
rz128 at scsi16 target 0 lun 0 (LID=0) (IBM 2105F20 1013)
rzb128 at scsi16 target 0 lun 1 (LID=1) (IBM 2105F20 1013)
rzc128 at scsi16 target 0 lun 2 (LID=2) (IBM 2105F20 1013)
rzd128 at scsi16 target 0 lun 3 (LID=3) (IBM 2105F20 1013)
rze128 at scsi16 target 0 lun 4 (LID=4) (IBM 2105F20 1013)
rzf128 at scsi16 target 0 lun 5 (LID=5) (IBM 2105F20 1013)
rzg128 at scsi16 target 0 lun 6 (LID=6) (IBM 2105F20 1013)
rzh128 at scsi16 target 0 lun 7 (LID=7) (IBM 2105F20 1013)
When the host system completes the restart, login as the root. Use the file
command to ensure that all the special files were created.
Use the file command to check the major number. If there is a description of the
disk, you will not find the model of the disk. Use the information from the output of
the previous command or calculate the special file syntax.
This shows an example of what you see when you type #file /dev/rrz*128c.
/dev/rrz128c: character special (8/262146) SCSI #16 2105F20 disk #1024 (SCSI
ID #0) (SCSI LUN #0)
/dev/rrzb128c: character special (8/262210) SCSI #16 2105F20 disk #1025 (SCSI
ID #0) (SCSI LUN #1)
/dev/rrzc128c: character special (8/262274) SCSI #16 2105F20 disk #1026 (SCSI
ID #0) (SCSI LUN #2)
/dev/rrzd128c: character special (8/262338) SCSI #16 2105F20 disk #1027 (SCSI
ID #0) (SCSI LUN #3)
/dev/rrze128c: character special (8/262402) SCSI #16 2105F20 disk #1028 (SCSI
ID #0) (SCSI LUN #4)