Managing Systems and Workgroups: A Guide for HP-UX System Administrators

Administering a System: Managing Disks and Files
Backing Up Data
Chapter 6 677
Choosing SAM for Backup
You can use SAM or HP-UX commands to back up data. Generally, SAM
is simpler and faster to use than using the HP-UX commands.
Choosing an HP-UX Backup/Recovery Utility
Table 6-12 compares several HP-UX backup utilities based on selected
tasks. For details about specific commands, see the associated manpage.
Table 6-12 A Comparison of HP-UX Backup/Recovery Utilities
Task
Backup Utility
fbackup
frecover cpio tar
dump
restore
a
vxdump
vxrestore
b
Recover
from tape
errors
Minimal
data loss.
resync
option causes
some data
loss.
Not
possible.
Skips over
bad tape.
Skips over
bad tape.
Efficient use
of tape
Medium. Low. High. High. High.
Backup/
restore
across a
network
Possible.
c
Possible
d
Possible.
e
Possible.
f
Possible.
g
Append files
to the same
backup tape
Not
possible.
Can use the
no-rewind
device file to
append
multiple
dumps.
Use tar
-r.
With dump,
can use the
no-rewind
device file to
append
multiple
dumps.
h
With
vxdump, can
use the
no-rewind
device file
to append
multiple
dumps.
i