Veritas-bu

AW: [Veritas-bu] Backup Of Same Client with Two Policies

2004-11-17 17:45:16
Subject: AW: [Veritas-bu] Backup Of Same Client with Two Policies
From: ueli.schweizer AT us-consult DOT ch (Ueli Schweizer)
Date: Wed, 17 Nov 2004 23:45:16 +0100
This is a multi-part message in MIME format.

------=_NextPart_000_0010_01C4CCFF.7D856F00
Content-Type: text/plain;
        charset="us-ascii"
Content-Transfer-Encoding: 7bit

Hi

 

On Windows machines NetBackup is using the archive bit by default do
determine, if a file should be backed up in an incremental backup. The only
difference between differential incremental and cumulative incremental is,
that the differential incremental resets the archive bit, the cumulative
incremental does not. You can define in the client properties not to use the
archive bit for incremental backups. In this case NetBackup compares the
last modification time with the last backup time to select the files to
backup in an incremental. Because of the behaviour of Windows, not to set
the modification time when renaming or copying files, this configuration is
not recommended.

 

On Unix machines the modification time of the file is compared with the last
backup time to decide if it should be backed up in the incremental. So here
the answers:

 

Question A: On Unix systems: Yes, on Windows systems: No.

 

Question B: On Unix systems the two policies will run completely
independent, so in the described situation the incremental backup will be a
full backup. On Windows it will be an incremental backup.

 

Hope that helps

 

Kind regards

 

Ueli Schweizer

Eidg. Wirtschaftsinformatiker FA

Certified VERITAS Professional

 

US-Consult GmbH

Boesch 43

CH-6331 Huenenberg

Switzerland

 

Phone: +41 41 781 5676 - Fax: +41 41 781 5677

ueli.schweizer AT us-consult DOT ch

www.backupvisual.com

 

  _____  

Von: veritas-bu-admin AT mailman.eng.auburn DOT edu
[mailto:veritas-bu-admin AT mailman.eng.auburn DOT edu] Im Auftrag von Sung Y 
Lee
Gesendet: Mittwoch, 17. November 2004 20:25
An: veritas-bu AT mailman.eng.auburn DOT edu
Betreff: [Veritas-bu] Backup Of Same Client with Two Policies

 

Hello,

I have scenario questions to ask. I would appreciate it if you can help me
clear up my understand of policies. 

Netbackup 4.5
Let's say you have one client A with (Policy A, with 3 schedules (full-Sat,
cumulative- Wed, differential-Mon,Tues,Thurs,Fri,Sun) going to Pool A. 
Then you setup another new policy ( Policy B, with 3 schedules(full-Sat,
cumulative- Wed, differential-Mon,Tues,Thurs,Fri,Sun) going to Pool B for
the client A. 

Question A)..... When backups (cumulative and/or differential) for Policy A
and Policy B are performed, will each policy look at it's own backup
policy(images) to determine when the last full or incrementals were done?

Question B)
Policy A full backup ran, Policy B full not ran. 
If policy B differential is kicked off, will it run a full backup or
differential backup?

I am trying to determine if Policy A and Policy B images are independence of
each other when deciding what to backup during different types of backup. 


Thanks,


Sung Y. Lee


------=_NextPart_000_0010_01C4CCFF.7D856F00
Content-Type: text/html;
        charset="us-ascii"
Content-Transfer-Encoding: quoted-printable

<html xmlns:v=3D"urn:schemas-microsoft-com:vml" =
xmlns:o=3D"urn:schemas-microsoft-com:office:office" =
xmlns:w=3D"urn:schemas-microsoft-com:office:word" =
xmlns=3D"http://www.w3.org/TR/REC-html40";>

<head>
<meta http-equiv=3DContent-Type content=3D"text/html; =
charset=3Dus-ascii">
<meta name=3DGenerator content=3D"Microsoft Word 11 (filtered medium)">
<!--[if !mso]>
<style>
v\:* {behavior:url(#default#VML);}
o\:* {behavior:url(#default#VML);}
w\:* {behavior:url(#default#VML);}
.shape {behavior:url(#default#VML);}
</style>
<![endif]-->
<style>
<!--
 /* Font Definitions */
 @font-face
        {font-family:Tahoma;
        panose-1:2 11 6 4 3 5 4 4 2 4;}
 /* Style Definitions */
 p.MsoNormal, li.MsoNormal, div.MsoNormal
        {margin:0cm;
        margin-bottom:.0001pt;
        font-size:12.0pt;
        font-family:"Times New Roman";}
a:link, span.MsoHyperlink
        {color:blue;
        text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
        {color:purple;
        text-decoration:underline;}
p
        {mso-margin-top-alt:auto;
        margin-right:0cm;
        mso-margin-bottom-alt:auto;
        margin-left:0cm;
        font-size:12.0pt;
        font-family:"Times New Roman";}
span.E-MailFormatvorlage18
        {mso-style-type:personal-reply;
        font-family:Arial;
        color:navy;}
@page Section1
        {size:595.3pt 841.9pt;
        margin:70.85pt 70.85pt 2.0cm 70.85pt;}
div.Section1
        {page:Section1;}
-->
</style>

</head>

<body lang=3DDE link=3Dblue vlink=3Dpurple>

<div class=3DSection1>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DEN-GB =
style=3D'font-size:
10.0pt;font-family:Arial'>Hi<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DEN-GB =
style=3D'font-size:
10.0pt;font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DEN-GB =
style=3D'font-size:
10.0pt;font-family:Arial'>On Windows machines NetBackup is using the =
archive
bit by default do determine, if a file should be backed up in an =
incremental
backup. The only difference between differential incremental and =
cumulative
incremental is, that the differential incremental resets the archive =
bit, the
cumulative incremental does not. You can define in the client properties =
not to
use the archive bit for incremental backups. In this case NetBackup =
compares
the last modification time with the last backup time to select the files =
to
backup in an incremental. Because of the behaviour of Windows, not to =
set the
modification time when renaming or copying files, this configuration is =
not
recommended.<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DEN-GB =
style=3D'font-size:
10.0pt;font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DEN-GB =
style=3D'font-size:
10.0pt;font-family:Arial'>On Unix machines the modification time of the =
file is
compared with the last backup time to decide if it should be backed up =
in the
incremental. So here the answers:<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DEN-GB =
style=3D'font-size:
10.0pt;font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DEN-GB =
style=3D'font-size:
10.0pt;font-family:Arial'>Question A: On Unix systems: Yes, on Windows =
systems:
No.<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DEN-GB =
style=3D'font-size:
10.0pt;font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DEN-GB =
style=3D'font-size:
10.0pt;font-family:Arial'>Question B: On Unix systems the two policies =
will run
completely independent, so in the described situation the incremental =
backup
will be a full backup. On Windows it will be an incremental =
backup.<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DEN-GB =
style=3D'font-size:
10.0pt;font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DEN-GB =
style=3D'font-size:
10.0pt;font-family:Arial'>Hope that helps<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DEN-GB =
style=3D'font-size:
10.0pt;font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>Kind regards<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'><o:p>&nbsp;</o:p></span></font></p>

<div>

<p class=3DMsoNormal><strong><b><font size=3D2 color=3Dnavy =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial;color:navy'>Ueli =
Schweizer</span></font></b></strong><font
color=3Dnavy><span style=3D'color:navy'><o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>Eidg. Wirtschaftsinformatiker =
FA</span></font><font
color=3Dnavy><span style=3D'color:navy'><o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
lang=3DEN-GB
style=3D'font-size:10.0pt;font-family:Arial;color:navy'>Certified =
VERITAS
Professional</span></font><font color=3Dnavy><span lang=3DEN-GB =
style=3D'color:navy'><o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D3 color=3Dnavy face=3D"Times New =
Roman"><span
lang=3DEN-GB =
style=3D'font-size:12.0pt;color:navy'>&nbsp;<o:p></o:p></span></font></p>=


<p class=3DMsoNormal><strong><b><font size=3D3 color=3Dnavy =
face=3DArial><span
lang=3DEN-GB =
style=3D'font-size:12.0pt;font-family:Arial;color:navy'>US-Consult
GmbH</span></font></b></strong><font color=3Dnavy><span lang=3DEN-GB
style=3D'color:navy'><o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>Boesch 43</span></font><font =
color=3Dnavy><span
style=3D'color:navy'><o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>CH-6331 =
Huenenberg</span></font><font
color=3Dnavy><span style=3D'color:navy'><o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>Switzerland</span></font><font =
color=3Dnavy><span
style=3D'color:navy'><o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D3 color=3Dnavy face=3D"Times New =
Roman"><span
style=3D'font-size:12.0pt;color:navy'>&nbsp;<o:p></o:p></span></font></p>=


<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>Phone: +41 41 781 5676 - Fax: +41 =
41 781
5677</span></font><font color=3Dnavy><span =
style=3D'color:navy'><o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'><a
href=3D"mailto:ueli.schweizer AT us-consult DOT ch">ueli.schweizer AT 
us-consult DOT ch=
</a><o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'><a =
href=3D"http://www.backupvisual.com";>www.backupvisual.com</a></span></fon=
t><font
color=3Dnavy><span style=3D'color:navy'><o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D3 color=3Dnavy face=3D"Times New =
Roman"><span
style=3D'font-size:12.0pt;color:navy'>&nbsp;</span></font><o:p></o:p></p>=


</div>

<div style=3D'border:none;border-left:solid blue 1.5pt;padding:0cm 0cm =
0cm 4.0pt'>

<div>

<div class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><font =
size=3D3
face=3D"Times New Roman"><span style=3D'font-size:12.0pt'>

<hr size=3D2 width=3D"100%" align=3Dcenter tabindex=3D-1>

</span></font></div>

<p class=3DMsoNormal><b><font size=3D2 face=3DTahoma><span =
style=3D'font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>Von:</span></font></b><font =
size=3D2
face=3DTahoma><span style=3D'font-size:10.0pt;font-family:Tahoma'>
veritas-bu-admin AT mailman.eng.auburn DOT edu
[mailto:veritas-bu-admin AT mailman.eng.auburn DOT edu] <b><span =
style=3D'font-weight:
bold'>Im Auftrag von </span></b>Sung Y Lee<br>
<b><span style=3D'font-weight:bold'>Gesendet:</span></b> Mittwoch, 17. =
November
2004 20:25<br>
<b><span style=3D'font-weight:bold'>An:</span></b>
veritas-bu AT mailman.eng.auburn DOT edu<br>
<b><span style=3D'font-weight:bold'>Betreff:</span></b> [Veritas-bu] =
Backup Of
Same Client with Two Policies</span></font><o:p></o:p></p>

</div>

<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt'><o:p>&nbsp;</o:p></span></font></p>

<p><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt'>Hello,<br>
<br>
I have scenario questions to ask. I would appreciate it if you can help =
me
clear up my understand of policies. <br>
<br>
Netbackup 4.5<br>
Let's say you have one client A with (Policy A, with 3 schedules =
(full-Sat,
cumulative- Wed, differential-Mon,Tues,Thurs,Fri,Sun) going to Pool A. =
<br>
Then you setup another new policy ( Policy B, with 3 schedules(full-Sat,
cumulative- Wed, differential-Mon,Tues,Thurs,Fri,Sun) going to Pool B =
for the
client A. <br>
<br>
Question A)..... When backups (cumulative and/or differential) for =
Policy A and
Policy B are performed, will each policy look at it's own backup =
policy(images)
to determine when the last full or incrementals were done?<br>
<br>
Question B)<br>
Policy A full backup ran, Policy B full not ran. <br>
If policy B differential is kicked off, will it run a full backup or
differential backup?<br>
<br>
I am trying to determine if Policy A and Policy B images are =
independence of
each other when deciding what to backup during different types of =
backup. <br>
<br>
<br>
Thanks,<br>
<br>
<br>
Sung Y. Lee<o:p></o:p></span></font></p>

</div>

</div>

</body>

</html>

------=_NextPart_000_0010_01C4CCFF.7D856F00--


<Prev in Thread] Current Thread [Next in Thread>