Seagate ST11200N Technical Information PDF herunterladen (Seite 20)

Before You Start

Observe the following points when performing the configurations described in this

chapter:

◆ The VERITAS support web site (http://www.support.veritas.com) contains server

platform compatibility information for a number of vendors and products (see the

NetBackup Product > Compatibility area of the site). Verify that your server platform

is supported before configuring devices.

◆ For NetBackup to recognize and communicate with connected devices, and for device

discovery to discover devices, NetBackup issues SCSI pass-thru commands to the

devices in a configuration.

Devices must have device files, which are links to character-special files with naming

conventions that are driver and HBA-dependent. NetBackup installs its own

pass-through driver called SG (SCSI Generic).

This driver must be properly configured to create device files for any device used by

NetBackup, or performance and functionality is limited. Each tape or optical disk

drive device also has a device file that is created for use by the system tape/disk

driver interface, which must exist for all read or write I/O capability.

Device files must exist that follow the naming conventions explained in “Configuring

Robotic Controls” on page 13, “Configuring Tape Drives” on page 16, and

“Configuring Optical Disk Drives” on page 23.

◆ Use mt and /usr/openv/volmgr/bin/sgscan to verify that the devices are

configured correctly. Make sure you can “see” your devices on the SAN before you

install and configure the SSO option.

◆ When configuring devices, you should attach all peripherals and reboot the system

with the reconfigure option (boot -r or reboot -- -r).

◆ When removing or replacing adapter cards, remove all device files previously

associated with the adapter card.

◆ If you use the Automated Cartridge System (ACS) robotic software, you must ensure

that the SunOS/BSD Source Compatibility Package is installed, so that the ACS

software can make use of shared libraries in /usr/ucblib.

◆ Sun systems with parallel SCSI HBA’s cannot use sixteen byte commands on any

device attached to these HBA’s. WORM media is not supported with these HBA’s for

either LTO-3 or SDLT drives. To override this rule, run:

touch /usr/openv/volmgr/database/SIXTEEN_BYTE__CDB

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

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