HP 9000 742i, Руководство пользователя

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FINAL TRIM SIZE : 7.0 in x 8.5 in
5
Backing Up Y our System and Softw are
The most imp ortant part of y our system is the data y ou ha v e accum ulated. It
is also esp ecially imp ortant to protect y our system from corruption. Y ou can
protect y our data and system from loss, using the general pro cedures given in
this c hapter. (F or detailed pro cedures, see Instal ling and Up dating HP-UX 9.0
and System A dministr ation T asks .)
Make sure y ou create and maintain a bac kup HP-UX k ernel ( /SYSBCKUP )
on y our disk from whic h y ou can b o ot in an emergency . A /SYSBCKUP is
automatically created b y SAM whenev er y ou recongure and reb o ot a new
k ernel from y our system console.
T o build y our reco v ery system, y ou can use the follo wing devices:
Cartridge tap e driv es
DDS-F ormat (\DA T") driv es
Magneto-optical disk driv es
Other hard disk driv es
Bac k up y our le system.
Restore y our le system, if needed.
Creating a Reco v ery System
A \reco v ery system" is a sp ecial tap e con taining a subset of the HP-UX
op erating system. In the ev en t of an op erating system failure that prev en ts y ou
from b o oting or logging in to HP-UX, y ou can b o ot from the reco v ery system
tap e and use the to ols on the tap e to repair the le system on y our disk. A
reco v ery system is created b y using commands rather than b y using SAM.
Y ou can also restore y our system from a system CD R OM that y ou can
purc hase from y our HP sales represen tativ e.
Y ou should make a reco v ery tap e using mkrs at the follo wing times:
Immediately after y ou set up the Mo del 742i.
Eac h time y ou up date y our op erating system or make a c hange in y our disk
sw ap conguration.
T o do this, y ou will need a tap e driv e (cartridge or DDS-format) and one or
more tap es.
5-2 Backing Up, Restoring, and Updating Y our Softw are