14 OES 11 SP2: Novell Archive and Version Services User Guide
3.2 Guidelines for Availability of File Versions
AfteryoursystemmeetstheSection 3.1,“PrerequisitesforRetrievingFileVersions,”onpage 13 ,
thereareseveralreasonsthatpreviousversionsofacurrent,renamed,ordeletedfilemightnotexist
inthearchivedatabase.
File Versions Are No Longer Supported for Your Files
Ifyourfileisinavolumeordirectorythatisnolongerconfiguredforversioning,fileversionsmight
notbeavailable.Forinformation,contactyoursystemadministrator.
File’s Lifetime Does Not Span the End of an Epoch
Afileisversionedonlyifitslifetimespansthe endofanepoch.Ifyoucreateafileafteranepoch
begins,anddeleteitbeforetheendoftheepoch,thefilecannotbeversioned.Afile’sversionmight
notbeavailableifitsscheduledversioningprocessesispaused
ordelayedforaperiodoftimethat
exceededthelifetimeofthefile.Althoughthefrequencyoftheepochusuallyislessthanthetypical
lifetimeofyourfiles,theremightbeoccasionswhentheversioningtimeisextended.Forexample,if
thetimeittakestosaveversions
ofallthefileseligibleforversioningexceedsthescheduleepoch
timeinterval,somescheduledepochsmightbeskippeduntilthecurrentprocessendsandthenext
scheduledstarttimeoccurs.
File Is Open During the Versioning Process
Ifafileisopenduringtheversioningprocess,acopyofthefilecannotbesavedtothearchive
database.InOES11SP2,youradministratorhastheoptionofusingNSSpoolsnapshot technology
duringtheversioningprocesstosavepoint‐in‐timecopiesofbothclosedandopen
files.Ifsnapshot
technologyisnotused,thefilesthatareeligibleforversioningarecopieddirectlyfromthesource
volume.Inthiscase,exclusivelyopenfilescannotbeversioned.
File Is Deleted before A Version Is Saved
Ifyourfileexistsattheendofanepoch,butyoudeleteitbeforeitcanbecopiedtothearchive
database,thatfileversionisnotsavedtothearchivedatabase.
File Version Exceeded Retention Thresholds
Typically ,thefile’sarchivedversionsaredeletedaut omaticallyfromthearchivedatabaseasthey
exceedthemaximumtimetokeepversionsorthemaximumnumberofversionspermitted,as
configuredbytheadministrator.
Filenames and Case Sensitivity
ForOES11SP2,filenamesarecasesensitive.Ifyouusethe
Rename
commandtomodifythecaseof
anylettersinafilename, itsfileversionsaresavedunderdifferentname.
3.3 NSS File Version Utility
NSSFileVersionUtilityforOES11SP2