Specifications

Backing Up and Restoring the System
23-14 Managing System Files
Backing Up and Restoring the System
MSShascommandsthatenableyoutoeasilybackupandrestore8100systemanduserfiles:
backup system [tftp:/ip-addr/]filename [all | critical]
restore system [tftp:/ip-addr/]filename [all | critical] [force]
ThebackupcommandcreatesanarchiveinUnixtapearchive(tar)format.
Therestorecommandunzipsanarchivecreatedbythebackupcommandandcopiesthefiles
fromthearchiveontotheRoamAboutSwitch.Ifafileinthearchivehasacounterpartonthe
switch,thearchiveversionof
thefilereplacesthefileontheswitch.Therestorecommanddoes
notdeletefilesthatdonothavecounterpartsinthearchive.Forexample,thecommanddoesnot
completelyreplacetheuserfilesarea.Instead,filesinthearchiveareaddedtotheuserfilesarea.
Afilein
theuserareaisreplace donlyifthearchivecontains afilewiththesamename.
YoucancreateorunzipanarchivelocatedonaTFTP serverorintheswitch’snonvolatilestorage.
IfyouspecifyaTFTPserveraspartofthefilenamewiththebackupcommand,thearchive
is
copieddirectlytotheTFTPserverandnotstoredlocallyontheswitch.
Bothcommandshaveoptionstospecifythetypesoffilesyouwanttobackupandrestore:
• critical—Backsup orrestoressystemfiles,includingtheconfigurationfileusedwhenbooting,
andcertificatefiles.Thesizeof
anarchivecreatedbythisoptionisgenerally1MBorless.This
isthedefaultfortherestorecommand.
• all—Backsuporrestoresthesamefilesasthecriticaloption,andallfilesintheuserfilesarea
ofnonvolatilestorage.(Theuserfilesareacontainsthesetoffiles
listedinthefilesectionofdir
commandoutput.)Archivefilescreatedbythealloptionarelargerthanfilescreatedbythe
criticaloption.Thefilesizedependsonthefilesintheuserarea,andthefilecanbequitelarge
iftheuserareacontainsimagefiles.
Thisisthedefaultforthebackupcommand.
Usethecriticaloptionifyouwanttobackuporrestoreonlythesystem‐criticalfilesrequiredto
operateandcommunicatewiththe switch.Usethealloptionifyoualsowanttobackuporrestore
WebAAApages,backupconfigurationfiles,
imagefiles,andanyotherfilesstoredintheuserfiles
areaofnonvolatilestorage.
Themaximumsupportedfilesizeis32 MB.Ifthefilesizeofthetarballistoolarge,delete
unnecessaryfiles(suchasunneededcopiesofsystemimagefiles)andtryagain,orusethecritical
optioninsteadofthealloption.
NeitheroptionarchivesimagefilesoranyotherfileslistedintheBootsectionofdircommand
output.Thealloptionarchives imagefilesonlyiftheyarepresentintheuserfilesarea.
ThebackupcommandstorestheMACaddressoftheswitchinthe
archive.Bydefault,therestore
commandworksonlyiftheMACaddressinthearchivematchestheMACaddressoftheswitch
wheretherestorecommandisentered.Theforceoptionoverridesthisrestrictionandallowsyou
tounpackoneswitch’sarchiveontoanotherswitch.
Note: If the archive’s files cannot fit on the RoamAbout Switch, the restore operation fails. Enterasys
Networks recommends deleting unneeded image files before creating or restoring an archive.
Caution: Do not use the force option unless advised to do so by Enterasys Networks Global
Technical .Services. If you restore one switch’s system files onto another switch, you must generate
new key pairs and certificates on the switch.