I agree - it does sound like your boss is paranoid - ADSM will handle what you
would expect it to do - that is restore all of your files to the last good
backup. It does not delete files that weren't there, nor would I want it to.
The secret, then to getting a good restore in this situation is to only put
back on the machine what is required to get back up, and then let ADSM restore
the rest of it.
As for your other questions -
2. The backup is only as good as the tape media itself, - a problem every
program has. So don't skimp with cheap tapes and/or drives. By using the
copypool facility, you can have a backup of the backup, so that should
minimize the exposure (which I would estimate to be very small to begin with)
3. Passwords are not kept on the clients, as you stated. When you start a
session (be it scheduled or interactive), the password is kept in memory. It
is then sent down to the server when authentication is required.
Hope this helps.
Sorry - I can't resist - what does a boss have to keep that's so important,
anyway, that requires so much backup - Sorry - cheap shot :-)
Jerry Lawson
jlawson AT theharford DOT com
________________________Forward Header________________________
Author: INTERNET.OWNERAD
Subject: Can ADSM do this?
02-13-97 09:11 AM
Hello,
the leader of one of our departments has some
serious questions about the functionality of ADSM.
He has some very special needs, that I think ADSM
is not able to fullfill.
I want to be sure and would be glad, if you could
answer the following question:
1. Does ADSM support "delete on restore"?
He wants to analyze the following scenario:
His system disk crashed, he installs the new system from CD.
Before the crash he deleted /usr/lib/sendmail and used
/usr/local/sendmail instead. After the new installation
the old /usr/lib/sendmail exists again. Now he starts an
ADSM restore of the /usr file system. Will ADSM delete
the now existing /usr/lib/sendmail, because it's not
on the backup?
How can he restore the system to exact the same state
as it was before the crash?
2. How can he be sure that the saved data on a backup medium
is identical to the local data? How can he trust the log
files? Maybe the head of the tape drive is defect, but
ADSM says that the backup completed successfully?
Is it possible for him to verify his backed up data?
3. How can he manage that the password isn't stored on
the client's local disk, but automatic backup can be
scheduled for late night?
Thanks very much in advance.
Regards,
Dirk Kastens _______________Dirk.Kastens AT rz.Uni-Osnabrueck DOT DE
Universitaet Osnabrueck Phone: +49/541/969-2347 (work)
Rechenzentrum Fax: +49/541/969-2470 (work)
Albrechtstr. 28 Phone: +49/541/258182 (private)
49069 Osnabrueck
Germany
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