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I hate to send this out 3 times in a row but it does address the question.
Freq ONLY depends on when the backup ends for INTERVAL based schedules. Thi=
s
is what used to cause sliding windows of old. Freq based Freq schedules do
not care when the backup last finished.
Below is a small write-up concerning the 2 processing types that NBU uses
for Freq. based schedules. Freq based schedules can use either Freq or
Interval mode depending on the Interval setting that is chosen.
Frequency based Sched vs Interval
Interval =3D 24 hour frequency(24 hours, 1 day, 7days ect.)
Frequency =3D Any non-24 hour frequency (12 hours, 27, hours 80 hours ect.)
If Interval mode scheduling is used the time of the backup is calculated
from when the windows was initially open. So if the window opens for a
class-sched at 8pm on a Monday and the frequency is 24 hours but the backup
does not start until Midnight the job will be available to run at 8pm the
next day. But if the sched was setup to run every 26 hours then that same
job would not be available to run until 2am the next day.
Hope that helps
Steve
On 5/18/06, Bob Stump <stumpb AT michigan DOT gov> wrote:
>
> "frequency is measured from when the backup ends"
>
> Will someone please provide me the documentation that states this?
> I have been looking for it for literally YEARS...
>
>
>
>
>
>
>
> >>> "Tristan Ball" <Tristan.Ball AT vsl.com DOT au> 5/17/2006 10:07 PM >>>
>
> Yes - and be aware that the frequency is measured from when the backup
> ends!
>
> I use 5 days on my "weekly" backups, and 12 hours on my nightly's. :-)
>
> t.
>
>
> ---
> Tristan Ball
> System Administrator
> Vision Systems
> +61-3-9211-7064
>
>
>
> ------------------------------
> *From:* veritas-bu-admin AT mailman.eng.auburn DOT edu [mailto:
> veritas-bu-admin AT mailman.eng.auburn DOT edu] *On Behalf Of *Wilkinson, Tim
> *Sent:* Thursday, 18 May 2006 10:48 AM
> *To:* veritas-bu AT mailman.eng.auburn DOT edu
> *Subject:* [Veritas-bu] 'Frequency' schedule type
>
>
> Hi,
>
> I'm trying to understand how this actually works as I think it works a
> little differently from how I thought it worked. We have a couple of poli=
ces
> that do a full backup weekly, with the frequency set to 1 week. However, =
the
> jobs didn't run on the weekend; there were no errors, they just didn't ru=
n.
> The only reason I can think of this happening is the job falling outside
> of the start window. From what I've read, the frequency is the minimum
> amount of tim that must pass before the next schedule runs, which means t=
hat
> we should probably set the weekly jobs to having a frequency of 6 days to
> avoid it falling outside the start window. Would this be correct?
>
> Cheers,
>
>
>
>
> ---------------------------------------------------------------------
> Tim Wilkinson
> I.T. Support Officer
> Science Corporate Information Systems
> Defence Science & Technology Organisation
> Department of Defence
>
> Tel: (02) 96921484
> Fax: (02) 96921562
> Email:***** tim.wilkinson AT dsto.defence.gov DOT au*
>
>
>
>
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<div>I hate to send this out 3 times in a row but it does address the quest=
ion. Freq ONLY depends on when the backup ends for INTERVAL based schedules=
. This is what used to cause sliding windows of old. Freq based Freq schedu=
les do not care when the backup last finished.
</div>
<p>Below is a small write-up concerning the 2 processing types that NBU use=
s for Freq. based schedules. Freq based schedules can use either Freq or In=
terval mode depending on the Interval setting that is chosen.</p>
<p>Frequency based Sched vs Interval</p>
<p>Interval =3D 24 hour frequency(24 hours, 1 day, 7days ect.)</p>
<p>Frequency =3D Any non-24 hour frequency (12 hours, 27, hours 80 hours ec=
t.)</p>
<p>If Interval mode scheduling is used the time of the backup is calculated=
from when the windows was initially open. So if the window opens for a cla=
ss-sched at 8pm on a Monday and the frequency is 24 hours but the backup do=
es not start until Midnight the job will be available to run at 8pm the nex=
t day. But if the sched was setup to run every 26 hours then that same job =
would not be available to run until 2am the next day.=20
</p>
<div>Hope that helps</div>
<div>Steve<br> </div>
<div><span class=3D"gmail_quote">On 5/18/06, <b class=3D"gmail_sendername">=
Bob Stump</b> <<a href=3D"mailto:stumpb AT michigan DOT gov">stumpb AT
michigan DOT go=
v</a>> wrote:</span>
<blockquote class=3D"gmail_quote" style=3D"PADDING-LEFT: 1ex; MARGIN: 0px 0=
px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">
<div>
<div style=3D"MARGIN: 4px 4px 1px; FONT: 10pt Tahoma"></div>
<div><span class=3D"q">
<div><font face=3D"Arial" color=3D"#0000ff">"frequency is measured fro=
m when the backup ends"</font></div>
<div><font face=3D"Arial" color=3D"#0000ff"></font> </div></span></div=
>
<div>
<div><font face=3D"Arial" color=3D"#0000ff">Will someone please provide me =
the documentation that states this?</font></div>
<div><font face=3D"Arial" color=3D"#0000ff">I have been looking for it for =
literally YEARS...</font></div>
<div><font face=3D"Arial" color=3D"#0000ff"></font> </div>
<div><font face=3D"Arial" color=3D"#0000ff"></font> </div>
<div> </div>
<div> </div>
<div> </div>
<div><br><br>>>> "Tristan Ball" <<a onclick=3D"return=
top.js.OpenExtLink(window,event,this)" href=3D"mailto:Tristan.Ball AT vsl DOT
com=
.au" target=3D"_blank">Tristan.Ball AT vsl.com DOT au</a>> 5/17/2006 10:07
PM &=
gt;>>
<br> </div></div>
<div><span class=3D"q">
<div style=3D"COLOR: #000000">
<div dir=3D"ltr" align=3D"left"><span><font face=3D"Arial" color=3D"#0000ff=
" size=3D"2">Yes - and be aware that the frequency is measured from when th=
e backup ends!</font></span></div>
<div dir=3D"ltr" align=3D"left"><span><font face=3D"Arial" color=3D"#0000ff=
" size=3D"2"></font></span> </div>
<div dir=3D"ltr" align=3D"left"><span><font face=3D"Arial" color=3D"#0000ff=
" size=3D"2">I use 5 days on my "weekly" backups, and 12 hours on=
my nightly's. :-)</font></span></div>
<div dir=3D"ltr" align=3D"left"><span><font face=3D"Arial" color=3D"#0000ff=
" size=3D"2"></font></span> </div>
<div dir=3D"ltr" align=3D"left"><span><font face=3D"Arial" color=3D"#0000ff=
" size=3D"2">t.</font></span></div>
<div> </div>
<div align=3D"left"><font face=3D"Arial" size=3D"2"></font> </div>
<div align=3D"left"><font face=3D"Arial" size=3D"2">---</font></div>
<div align=3D"left"><font face=3D"Arial" size=3D"2">Tristan Ball</font></di=
v>
<div align=3D"left"><font face=3D"Arial" size=3D"2">System Administrator</f=
ont></div>
<div align=3D"left"><font face=3D"Arial" size=3D"2">Vision Systems</font></=
div>
<div align=3D"left"><font face=3D"Arial" size=3D"2">+61-3-9211-7064</font><=
/div>
<div align=3D"left"><font face=3D"Arial" size=3D"2"></font> </div>
<div> </div><br>
<div lang=3D"en-us" dir=3D"ltr" align=3D"left">
<hr>
<font face=3D"Tahoma" size=3D"2"><b>From:</b> <a onclick=3D"return top.js.O=
penExtLink(window,event,this)" href=3D"mailto:veritas-bu-admin AT mailman DOT
eng.=
auburn.edu" target=3D"_blank">veritas-bu-admin AT mailman.eng.auburn DOT
edu</a> [=
mailto:
<a onclick=3D"return top.js.OpenExtLink(window,event,this)" href=3D"mailto:=
veritas-bu-admin AT mailman.eng.auburn DOT edu"
target=3D"_blank">veritas-bu-admin=
@mailman.eng.auburn.edu</a>] <b>On Behalf Of </b>Wilkinson, Tim<br><b>Sent:=
</b>
Thursday, 18 May 2006 10:48 AM<br><b>To:</b> <a onclick=3D"return top.js.O=
penExtLink(window,event,this)" href=3D"mailto:veritas-bu AT mailman DOT
eng.auburn=
.edu" target=3D"_blank">veritas-bu AT mailman.eng.auburn DOT
edu</a><br><b>Subject=
:</b>
[Veritas-bu] 'Frequency' schedule type<br></font><br> </div>
<div></div>
<div><span><font face=3D"Arial" size=3D"2">Hi,</font></span></div>
<div><span><font face=3D"Arial" size=3D"2"></font></span> </div>
<div><span><font face=3D"Arial" size=3D"2">I'm trying to understand how thi=
s actually works as I think it works a little differently from how I though=
t it worked. We have a couple of polices that do a full backup weekly, with=
the frequency set to 1 week. However, the jobs didn't run on the weekend; =
there were no errors, they just didn't run.
</font></span></div>
<div><span><font face=3D"Arial" size=3D"2">The only reason I can think of t=
his happening is the job falling outside of the start window. From what I'v=
e read, the frequency is the minimum amount of tim that must pass before th=
e next schedule runs, which means that we should probably set the weekly jo=
bs to having a frequency of 6 days to avoid it falling outside the start wi=
ndow. Would this be correct?
</font></span></div>
<div><font face=3D"Arial" size=3D"2"></font> </div>
<div align=3D"left"><span></span><font face=3D"Arial"><font size=3D"2">C<sp=
an>heers,</span></font></font><br><br> </div>
<ul>
<p><font face=3D"Arial" size=3D"2">----------------------------------------=
-----------------------------</font> <br><font face=3D"Arial" size=3D"2">Ti=
m Wilkinson</font> <br><font face=3D"Arial" size=3D"2">I.T. Support Officer=
</font>
<br><font face=3D"Arial" size=3D"2">Science Corporate Information Systems<=
/font> <br><font face=3D"Arial" size=3D"2">Defence Science & Technology=
Organisation</font> <br><font face=3D"Arial" size=3D"2">Department of Defe=
nce</font>
</p>
<p><font face=3D"Arial" size=3D"2">Tel: (02) 96921484</font> <br><font face=
=3D"Arial" size=3D"2">Fax: (02) 96921562</font> <br><font face=3D"Arial" si=
ze=3D"2">Email:<u></u></font><u></u><u> <font face=3D"Times New Roman" colo=
r=3D"#0000ff">
<a onclick=3D"return top.js.OpenExtLink(window,event,this)" href=3D"mailto:=
tim.wilkinson AT dsto.defence.gov DOT au" target=3D"_blank">tim.wilkinson AT
dsto DOT def=
ence.gov.au</a></font></u> </p><br></ul>
<div> </div></div></span></div>
<div></div></div></blockquote></div><br>
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