Seagate ST39175LW Guía de usuario descargar pdf (Pagina 63)

Chapter 4, NetBackup Configuration 53

Notes on Offhost Backup and Frozen Images

Offhost Backup

For offhost backups (NetBackup Media Server or Third-Party Copy Device), the client’s

data must be on a disk that meets the following criteria:

◆ The disk must be either a SCSI or Fibre Channel device.

◆ The disk must be visible to both the NetBackup client and to the NetBackup media

server. The disk must be connected through a SAN.

◆ The disk must be able to return its SCSI serial number in response to a serial-number

inquiry (serialization).

Also note: The class file list must not contain the ALL_LOCAL_DRIVES entry if you are

using offhost backup.

When Using the Third-Party Copy Device Backup Method

◆ NetBackup ServerFree Agent does not allow use of multiple data streams.

◆ The backup is incompatible with multiplexing (the writing of two or more concurrent

backup jobs to the same storage device). To prevent multiplexing on a third-party

copy backup, you must set Maximum multiplexing per drive to 1, in the Storage Unit

Management utility.

Frozen Image Source

◆ To back up individual files, specify the frozen image source as the mounted file

system that contains the files. The individual file(s) must be specified in the

NetBackup file list for the class. When the backup occurs, only the files in the file

list are backed up, not the entire file system.

◆ In the file list, be sure to specify absolute path names. Refer to the NetBackup

DataCenter System Administrator’s Guide - UNIX for help specifying files in a file

list.

◆ If the file list includes files that do NOT reside within a frozen image source, and

the Allow frozen image clients attribute is selected, the backup will fail.

◆ Do not change a frozen image definition unless you want that change to apply to

all classes in which the client is included. For example, if you have already

configured frozen image source /fs1 (on client Jody) in class Jody-1, any

change you make to that frozen image source definition for /fs1 when

configuring class Bill-1 will also apply to frozen image source /fs1 in class

Jody-1.

NetBackup 4.0V ServerFree Agent System Administrator's Guide for Solaris

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Seagate ST39175LW Guía de usuario Pagina 63