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In 4.5 there is a way to do a pseudo checkpoint backup and it is in the manual
and you put something in the files list like 'NEW DATA STREAM' ...not sure of
syntax but it breaks up the backup into jobs and you are able to restart a
failed job. In the next release there will be true checkpoint restart
capability for backup and restore enabling you to start a job where it left off
if you have that feature turned on.
But in the case of past tense the only way to get back any data from a failed
job is to tar it off tape, NBU does not keep partial backups in its image db.
----- Original Message -----
From: Dennis Dwyer
To: veritas-bu AT mailman.eng.auburn DOT edu ; kcerqueira AT team.look DOT ca
Sent: Monday, June 16, 2003 2:29 PM
Subject: Re: [Veritas-bu] Backup Restore - Help
Katherine,
It is my experience that if a backup does not run to successful completion
(Status 0 or 1) all the data that was transferred to the tape is not saved. I
hear that within a new release or possibly a Feature Pack, that may no longer
be true but one of the folks that are in the know on that will have to respond
(I believe they're calling it checkpointing). I've always taken issue with the
fact that it didn't keep what was done up through the failure. Especially,
since I have some backups that might run 30-hours and fail in the 28th hour.
I've been working with this product for more than 4 years now and have not ever
found a way to get to that data (mainly because NBU does not catalog the
partial image). Once the backup fails, that tape is eligible to be written over
again so the odds of getting to the data before then are not good.
If anybody else has a different, more positive experience I think we'd all
like to hear it.
Regards,
Dennis
Dennis F. Dwyer
Manager, Systems Software
Tampa Electric Company
(813) 225-5181 - Voice
(813) 275-3599 - FAX
Visit our corporate website at www.tecoenergy.com
The Colonel Says: "Time is not a test of the truth"
Translation: Just because you've always done it that way, doesn't make it
right
>>> Katherine Cerqueira <kcerqueira AT team.look DOT ca> 06/16/2003 2:49:10
PM >>>
Hi,
A backup was done but someone canceled it before it was finished. It
managed to backup about 25gb before the job was canceled. However, a manual
backup was then followed and done to completion. When I try to do a
restore, it only shows the data of the completed backup. Nothing is
cataloged regarding the first canceled job. Is there anyway to restore the
25gb of backup that was backed up off the first canceled job. Wouldn't the
data still be on the tape?
Thanks for any help you can offer.
Katherine Cerqueira
_______________________________________________
Veritas-bu maillist - Veritas-bu AT mailman.eng.auburn DOT edu
http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
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<DIV>
<DIV><FONT face=Arial>In 4.5 there is a way to do a pseudo checkpoint backup
and
it is in the manual and you put something in the files list like 'NEW DATA
STREAM' ...not sure of syntax but it breaks up the backup into jobs and
you
are able to restart a failed job. In the next release there will be true
checkpoint restart capability for backup and restore enabling you to start a
job
where it left off if you have that feature turned on.</FONT></DIV>
<DIV><FONT face=Arial></FONT> </DIV>
<DIV><FONT face=Arial>But in the case of past tense the only way to get back
any
data from a failed job is to tar it off tape, NBU does not keep partial backups
in its image db.</FONT></DIV></DIV>
<BLOCKQUOTE dir=ltr
style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT:
#000000 2px solid; MARGIN-RIGHT: 0px">
<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=dfdwyer AT tecoenergy DOT com href="mailto:dfdwyer AT tecoenergy DOT
com">Dennis
Dwyer</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A
title=veritas-bu AT mailman.eng.auburn DOT edu
href="mailto:veritas-bu AT mailman.eng.auburn DOT edu">veritas-bu AT
mailman.eng.auburn DOT edu</A>
; <A title=kcerqueira AT team.look DOT ca
href="mailto:kcerqueira AT team.look DOT ca">kcerqueira AT team.look DOT
ca</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Monday, June 16, 2003 2:29 PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [Veritas-bu] Backup Restore
- Help</DIV>
<DIV><BR></DIV>
<DIV>Katherine,</DIV>
<DIV> </DIV>
<DIV>It is my experience that if a backup does not run to successful
completion (Status 0 or 1) all the data that was transferred to the tape is
not saved. I hear that within a new release or possibly a Feature Pack, that
may no longer be true but one of the folks that are in the know on that will
have to respond (I believe they're calling it checkpointing). I've always
taken issue with the fact that it didn't keep what was done up through the
failure. Especially, since I have some backups that might run 30-hours and
fail in the 28th hour. I've been working with this product for more than 4
years now and have not ever found a way to get to that data (mainly because
NBU does not catalog the partial image). Once the backup fails, that tape is
eligible to be written over again so the odds of getting to the data before
then are not good.</DIV>
<DIV> </DIV>
<DIV>If anybody else has a different, more positive experience I think we'd
all like to hear it.</DIV>
<DIV> </DIV>
<DIV>Regards,</DIV>
<DIV>Dennis</DIV>
<DIV> </DIV>
<DIV>Dennis F. Dwyer<BR>Manager, Systems Software<BR>Tampa Electric
Company</DIV>
<DIV> </DIV>
<DIV>(813) 225-5181 - Voice<BR>(813) 275-3599 - FAX</DIV>
<DIV> </DIV>
<DIV>Visit our corporate website at <A
href="http://www.tecoenergy.com">www.tecoenergy.com</A></DIV>
<DIV> </DIV>
<DIV>The Colonel Says: "Time is not a test of the truth"<BR>Translation: Just
because you've always done it that way, doesn't make it
right<BR><BR>>>> Katherine Cerqueira <kcerqueira AT team.look DOT
ca>
06/16/2003 2:49:10 PM >>><BR>Hi,<BR><BR>A backup was done but
someone
canceled it before it was finished. It<BR>managed to backup about 25gb
before the job was canceled. However, a manual<BR>backup was then
followed and done to completion. When I try to do a<BR>restore, it only
shows the data of the completed backup. Nothing is<BR>cataloged
regarding the first canceled job. Is there anyway to restore the<BR>25gb of
backup that was backed up off the first canceled job. Wouldn't
the<BR>data still be on the tape?<BR><BR>Thanks for any help you can
offer.<BR><BR>Katherine
Cerqueira<BR><BR><BR>_______________________________________________<BR>Veritas-bu
maillist - Veritas-bu AT mailman.eng.auburn DOT edu<BR><A
href="http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu">http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu</A><BR><BR></DIV></BLOCKQUOTE></BODY></HTML>
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