User's Manual

62 Configuring FSE
Linux specific
On Linux platform, FSE uses a SCSI generic (sg) driver for accessing SCSI libraries and drives. The sg
driver is an upper level SCSI subsystem device driver that enables user applications to send SCSI
commands to relevant devices. It is capable of addressing up to 256 SCSI devices.
When configuring libraries and drives, you need to specify their control device file names: each device file
name corresponds to one attached SCSI device. Control device file names are located in the /dev
directory. Therefore, the specified control device for library and drive takes the form /dev/sgX, where X is
a number between 0 and 255.
Windows specific
Before configuring FSE drives, ensure that the drivers of all tape drives to be used as FSE drives are
disabled on the system that hosts the consolidated FSE system or FSE server. For more information on
disabling the tape drive drivers, see the FSE installation guide for Windows.
On Windows platform, FSE identifies attached SCSI devices (libraries and drives) by specifying port, bus,
target, and LUN in the form of id:P:B:T:L, where:
Library and drive configuration procedure
NOTE: To use disk media, no library and drive configuration is needed.
In general, you configure an FSE library or FSE drive as follows:
1. On the consolidated FSE system or FSE server, invoke the fse_scsi tool to get the control device files
of the connected tape libraries and tape drives:
Linux specific
NOTE: If the Library Agent is running, the device for the library used by the agent is not seen in
the list.
P ..... SCSI port number (HBA number) to which the device is connected.
B ..... SCSI bus/channel number on the HBA to which the device is connected.
T ..... target ID to which the device is connected.
L ..... logical unit number (LUN) of the device.
# /opt/fse/sbin/tools/fse_scsi --scan
** /dev/sg0 id:0:0:0:0
SCSI device ID: port 0, ch 0, id 0, lun 0, type Medium Changer 8
Device: HP MSL6000 Series 0430 ser #:3G2BLBD358D0 std :2
** /dev/sg1 id:1:0:0:0
SCSI device ID: port 1, ch 0, id 0, lun 0, type Tape 1
Device: HP Ultrium 2-SCSI F59W ser #:HUL2K00119 std :3
Done!