- Sun Storage Virtual Tape Library VTL User Guide

Managing virtual libraries

96267 • G Chapter 4 VTL operations 39

Configuringandprovisioningvirtual libraries

Thissectiondescribestheproceduresforcreatingandmaintainingvirtuallibraries,

withtheirvirtualdrivesandmedia. Itdocumentsthefollowingprocedures:

■ “Settingvirtuallibrarysystemproperties”onpage 39

■ “Creatingvirtualtapelibraries”onpage 41

■ Settingupoptionalfunctionality(see“C onfig uri ngAutomatedTapeCaching”on

page 45,“Settingupthe AutoArchivefeature”onpage 49,or“Setting upthe

AutoRepl ic ati o noption”onpage 5 0) 

■ “Generatingthevirtuallibrary”onpage 51

■ “Creatingvirtualtapes”onpage 56.

▼ Settingvirtuallibrary systemproperties

1. InthetreeviewattheleftoftheVTLconsole,right‐clicktheVirtualTape

Library System(

A below),andselectPropertiesfromthecontextmenu(B).

2. Whenth eChange VirtualTape Librarypropertiessheetappears,ifyouwish

touseVTLcompressionsoftware,checktheEnable Virtual Tape Library

compression mode checkbox(

C below).

Consideryourrequirementscarefullybeforeenablingsoftwarecompression.

Softwarecom pre ssi on is acomputation all ydemandingoperationthatconsumes

processorcyclesthatwouldotherwisebeusedtomovedata.When youenablethe

feature,youthustradethroughputperformanceforcapacity.MostVTL sol utions are

aimedatincr easi n gbackupperformance. VTLstorage

isus ed asafast,temporary

repositoryfordatathatwillbe movedtophysicaltapeforlong‐termstorage.Insuch

cases,thehardware‐basedcompressioncapabilitiesofphysicaltapedrivesprovide