Seagate ST11200N Información técnica descargar pdf (Pagina 74)

Configuring Robotic Controls

3. The commands to create the passthru device file for the tape drive follow. See the

“Command Summary” on page 70 for the mknod command format or see the

scsi_ctl(7) man page.

cd /dev/sctl

/usr/sbin/mknod c3t0l0 c 203 0x030000

These commands create the following passthru device file.

/dev/sctl/c3t0l0

Although the passthru device file is used during NetBackup operation, it is not

specified during configuration. During Media Manager tape drive configuration, the

following no rewind on close device file path is used:

/dev/rmt/c3t0d0BESTnb

Configuring Device Files for the spt Passthru Driver

Use the following procedure to configure these types of device files. See “Determining

Which Passthru Driver to Configure” on page 55 to determine if you require these files.

Note The HP-UX kernel has to be configured to use the spt SCSI passthru driver. Refer

to the HP-UX scsi_pt (7) man page.

The device files for the spt driver have the following format:

/dev/spt/c

CONTROLLER

TARGET

UNIT

Where:

◆ CONTROLLER is the Instance number of the controlling bus. The Instance value is

displayed in the output of ioscan -f in the column labeled I of the controller’s

entry (ext_bus in the column labeled Class).

◆ TARGET is the SCSI ID of the robotic control.

◆ UNIT is the SCSI logical unit number (LUN) of the robot. This is usually 0.

You must create the device files for the spt driver manually, as they are not created

automatically when the system boots.

▼ To create these device files

These steps are also documented in the scsi_pt(7) man page.

1. Install and configure the driver as described in the man page.

2. Determine the character major number of the spt driver using lsdev -d spt.

60 NetBackup Media Manager Device Configuration Guide for UNIX, Windows, and Linux

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Seagate ST11200N Información técnica Pagina 74