Dump Usage
From Gruff Goat Wiki
Dump used with pipes is a very powerful and effective way to backup your filesystems.
Contents |
GGIS Shell Script
I use the following script to dump most of my servers, ggis_dump.sh
Dump of filesystem to remote file using ssh and gzip
/sbin/dump -0uLan -f - /filesys | gzip -2 | ssh -c blowfish \
user@target.com dd of=/dir/dump.gz
Explanation
/sbin/dump # Dump command with switches
-0 # Dump level, 0-9. 0 is full backup. Others are incremental
# Use 0 monthly, 1 weekly and the dailies by 3 2 5 4 7 6 9
-u # Update the dumpdates file after a successful dump
-L # Dump a live filesystem
-a # Auto-size. Use to write a single file.
-n # Notify operator
-f # Write to file, filename follows
- # Standard output
/filesys # Filesystem to dump, view all mounted filesystems with df
| gzip # Pipe standard output through gzip
-2 # Level of compression, 1 is fastest, 9 is smallest
| ssh # Pipe output of gzip to ssh -c blowfish # Encrypt the session using the Blowfish cipher. Fast. user@target.com # Username and target server name. Connect will ask for password.
dd # Run the dd command to copy standard input to standard output of=/dir/dump.gz # Write output to named file instead of standard output
Dump of filesystem to local file using gzip
/sbin/dump -0uLan -f - /filesys | gzip -2 > /path/to/dump.gz
or in batch mode
batch /sbin/dump -0uLan -f - /filesys | gzip -2 > /path/to/dump.gz ctrl d
