I will perform a "fbackup -f /dev/rmt/0m -i /". Can any body advise me on the following:
1. Is this a full backup of the entire file system or like the entire image of the server. Is it ok to do a backup while the server is online.
2. If it is not advisable to do a backup while the server is online/working,
Is it safe to unplug the ethernet cable while the server is working.
3. Is this the correct command to recover "frecover -f /dev/rmt/0m -xov -i /"
Disclaimer: I don't have any specific experience with fbackup
1. This should backup all locally mounted filesystems as opposed to an image (like an ISO, mksysb, flash archive, etc). From fbackup(1M): if I'm understanding your questions correctly, the whole topic of online backups is much dependent on what the application is, as any open files are not likely to be backed up correctly. A web server that is generally static is something you could perhaps consider backing up online. Backing up a database server could result in a much more involved process, as the database files are constantly open and are being written to/read from.
Code:
-i path path specifies a tree to be included in the backup
graph. There is no limit on how many times the -i
option can be specified.
...
-f device device specifies the name of an output file. If the
name of the file is -, fbackup writes to the standard
output. There is no default output file; at least one
must be specified. If more than one output file is
specified, fbackup uses each one successively and then
repeats in a cyclical pattern. Patterns can be used in
the device name in a manner resembling file name
expansion as done by the shell (see sh-bourne(1) and
other shell manual entries). The patterns must be
protected from expansion by the shell by quoting them.
The expansion of the pattern results in all matching
names being in the list of devices used.
2. Are you suggesting the thought of unplugging the ethernet cable while the server is online for the purposes of backing it up? I would very much discourage this..
3. Looks about right; I'd read up on the manpage for frecover(1M)
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