BackupException

Can anybody tell me what this exception about?

asadmin> backup-domain --domaindir /var/opt/SUNWappserver/domains --verbose=true domain2

May 18, 2007 9:54:29 AM com.sun.enterprise.config.backup.LoggerHelper finest

FINEST: Request DUMP **********

Class ModifiersFieldValue

BackupRequest static final excludeDirs [Ljava.lang.String;@1fddc31

BackupRequest (package)domainsDir/var/opt/SUNWappserver/domains

BackupRequest (package)domainNamedomain2

BackupRequest (package)description 1179496469700

BackupRequest (package)backupFile/var/opt/SUNWappserver/domains/domain2/backups/sjsas_backup_v00001.zip

BackupRequest (package)domainDir/var/opt/SUNWappserver/domains/domain2

BackupRequest (package)timestamp1179496469700

BackupRequest (package)backupDir<null>

BackupRequest (package)tersefalse

BackupRequest (package)verbosetrue

May 18, 2007 9:54:30 AM com.sun.enterprise.config.backup.LoggerHelper fine

FINE: Writing /var/opt/SUNWappserver/domains/domain2/backups/sjsas_backup_v00001.zip

com.sun.enterprise.config.backup.BackupException: Error writing Zip file: /var/opt/SUNWappserver/domains/domain2/backups/sjsas_backup_v00001.zip

[1243 byte] By [G_identitya] at [2007-11-27 4:48:21]
# 1
This exception says that there was an error while writing the zip file into:/var/opt/SUNWappserver/domains/domain2/backups/You might want to check if you have enough space in/var.
Sultala at 2007-7-12 10:01:14 > top of Java-index,Application & Integration Servers,Application Servers...
# 2
I did check it and it has enough space to create backup. But still the error remains same.
G_identitya at 2007-7-12 10:01:14 > top of Java-index,Application & Integration Servers,Application Servers...