Backup Commands in Linux & Unix with Usage and Examples

Solaris File System Backup using ufsdump

ufsdump features

1. Used for complete file system backup .
2. It copies every thing from regular files in a file system to special character and block device files.
2. It can work on mounted or unmounted file systems.

Identifying the tape device in Solaris

dmesg | grep st

Checking the status of the tape drive

mt -f /dev/rmt/0 status

Backup restore and disk copy with ufsdump :

Backup file system using ufsdump

ufsdump 0cvf /dev/rmt/0 /dev/rdsk/c0t0d0s0
or
ufsdump 0cvf /dev/rmt/0 /usr

To restore a dump with ufsrestore

ufsrestore rvf /dev/rmt/0
ufsrestore in interactive mode allowing selection of individual files and
directories using add , ls , cd , pwd and extract commands .
ufsrestore -i /dev/rmt/0

Making a copy of a disk slice using ufsdump

ufsdump 0f – /dev/rdsk/c0t0d0s7 |(cd /mnt/backup ;ufsrestore xf -)

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