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This reminded me of something I've been wondering about for a while; does
checkpoint
restart on backups introduce any sort of noticable performance penalty? I
know there
must be some overhead and probably more for to tape than to disk, but I'm
wondering
if turning it on should be an automatic "Best Practice" or not.
---Rich Dellaripa
-----Original Message-----
From: Tim Hoke [mailto:thoke AT northpeak DOT org]
Sent: Sunday, August 14, 2005 10:16 AM
To: Eric Ljungblad
Cc: David Rock; veritas-bu AT mailman.eng.auburn DOT edu
Subject: Re: [Veritas-bu] only allow the backup to run in the backup window
Sounds like we all need to submit an enhancement request to have a
"suspend at window close"... then, if it's a critical backup, the admin
could resume it (assuming checkpoint restart here).
-tim
On Aug 13, 2005, at 11:32 PM, Eric Ljungblad wrote:
> Windows master:
>
> IF allow retries after run day is checked using calendar based
> schedules
> then The backups can start again after the start window closes, that's
> what happens here anyway with 4.5(mp6) 2003 Windows master / media
> servers.
>
> It would be nice if we could setup a END TIME that kills the backups if
> they are still running after a certain time, like 8am?
>
> Thanks
> Eric Ljungblad
>
> -----Original Message-----
> From: veritas-bu-admin AT mailman.eng.auburn DOT edu
> [mailto:veritas-bu-admin AT mailman.eng.auburn DOT edu] On Behalf Of David
> Rock
> Sent: Saturday, August 13, 2005 9:04 PM
> To: veritas-bu AT mailman.eng.auburn DOT edu
> Subject: Re: [Veritas-bu] only allow the backup to run in the backup
> window
>
> * hsuj AT optonline DOT net <hsuj AT optonline DOT net> [2005-08-13 10:55]:
>> I wanted to restrict the backup to be started or restarted in the
>> backup time window defined in NetBackup policy. When it is out of the
>> time window, the startup/restart is not allowed.
>>
>> to achieve that, I am thinking if there is NetBackup parameter feeding
>> in bpstart_notify script, and thus we can add a logic in the script to
>> see if the time is out of the backup window or not, if it is, then
>> exit from the script.
>
> You are overthinking it. This is what NetBackup's schedule windows do
> already. They define the time that a backup is allowed to start. So, if
> your window is from 01:00 to 04:00, if the backup tries to run at
> 05:00,
> it will fail with a 196. No bpstart_notify logic is necessary.
>
> --
> David Rock
> david AT graniteweb DOT com
>
> _______________________________________________
> Veritas-bu maillist - Veritas-bu AT mailman.eng.auburn DOT edu
> http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
>
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<TITLE>Checkpoint Restart (Was RE: [Veritas-bu] only allow the backup =
to run in the backup window)</TITLE>
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<P><FONT SIZE=3D2>This reminded me of something I've been wondering =
about for a while; does checkpoint </FONT>
<BR><FONT SIZE=3D2>restart on backups introduce any sort of noticable =
performance penalty? I know there</FONT>
<BR><FONT SIZE=3D2>must be some overhead and probably more for to tape =
than to disk, but I'm wondering</FONT>
<BR><FONT SIZE=3D2>if turning it on should be an automatic "Best =
Practice" or not.</FONT>
</P>
<P><FONT SIZE=3D2>---Rich Dellaripa</FONT>
</P>
<P><FONT SIZE=3D2>-----Original Message-----</FONT>
<BR><FONT SIZE=3D2>From: Tim Hoke [<A =
HREF=3D"mailto:thoke AT northpeak DOT org">mailto:thoke AT northpeak DOT
org</A>] =
</FONT>
<BR><FONT SIZE=3D2>Sent: Sunday, August 14, 2005 10:16 AM</FONT>
<BR><FONT SIZE=3D2>To: Eric Ljungblad</FONT>
<BR><FONT SIZE=3D2>Cc: David Rock; =
veritas-bu AT mailman.eng.auburn DOT edu</FONT>
<BR><FONT SIZE=3D2>Subject: Re: [Veritas-bu] only allow the backup to =
run in the backup window</FONT>
</P>
<P><FONT SIZE=3D2>Sounds like we all need to submit an enhancement =
request to have a </FONT>
<BR><FONT SIZE=3D2>"suspend at window close"... then, if it's =
a critical backup, the admin </FONT>
<BR><FONT SIZE=3D2>could resume it (assuming checkpoint restart =
here).</FONT>
</P>
<P><FONT SIZE=3D2>-tim</FONT>
</P>
<P><FONT SIZE=3D2>On Aug 13, 2005, at 11:32 PM, Eric Ljungblad =
wrote:</FONT>
</P>
<P><FONT SIZE=3D2>> Windows master:</FONT>
<BR><FONT SIZE=3D2>></FONT>
<BR><FONT SIZE=3D2>> IF allow retries after run day is checked using =
calendar based </FONT>
<BR><FONT SIZE=3D2>> schedules</FONT>
<BR><FONT SIZE=3D2>> then The backups can start again after the =
start window closes, that's</FONT>
<BR><FONT SIZE=3D2>> what happens here anyway with 4.5(mp6) 2003 =
Windows master / media</FONT>
<BR><FONT SIZE=3D2>> servers.</FONT>
<BR><FONT SIZE=3D2>></FONT>
<BR><FONT SIZE=3D2>> It would be nice if we could setup a END TIME =
that kills the backups if</FONT>
<BR><FONT SIZE=3D2>> they are still running after a certain time, =
like 8am?</FONT>
<BR><FONT SIZE=3D2>></FONT>
<BR><FONT SIZE=3D2>> Thanks</FONT>
<BR><FONT SIZE=3D2>> Eric Ljungblad</FONT>
<BR><FONT SIZE=3D2>></FONT>
<BR><FONT SIZE=3D2>> -----Original Message-----</FONT>
<BR><FONT SIZE=3D2>> From: =
veritas-bu-admin AT mailman.eng.auburn DOT edu</FONT>
<BR><FONT SIZE=3D2>> [<A =
HREF=3D"mailto:veritas-bu-admin AT mailman.eng.auburn DOT edu">mailto:veritas-b=
u-admin AT mailman.eng.auburn DOT edu</A>] On Behalf Of David </FONT>
<BR><FONT SIZE=3D2>> Rock</FONT>
<BR><FONT SIZE=3D2>> Sent: Saturday, August 13, 2005 9:04 PM</FONT>
<BR><FONT SIZE=3D2>> To: veritas-bu AT mailman.eng.auburn DOT edu</FONT>
<BR><FONT SIZE=3D2>> Subject: Re: [Veritas-bu] only allow the backup =
to run in the backup</FONT>
<BR><FONT SIZE=3D2>> window</FONT>
<BR><FONT SIZE=3D2>></FONT>
<BR><FONT SIZE=3D2>> * hsuj AT optonline DOT net <hsuj AT optonline DOT
net> =
[2005-08-13 10:55]:</FONT>
<BR><FONT SIZE=3D2>>> I wanted to restrict the backup to be =
started or restarted in the</FONT>
<BR><FONT SIZE=3D2>>> backup time window defined in NetBackup =
policy. When it is out of the</FONT>
<BR><FONT SIZE=3D2>>> time window, the startup/restart is not =
allowed.</FONT>
<BR><FONT SIZE=3D2>>></FONT>
<BR><FONT SIZE=3D2>>> to achieve that, I am thinking if there is =
NetBackup parameter feeding</FONT>
<BR><FONT SIZE=3D2>>> in bpstart_notify script, and thus we can =
add a logic in the script to</FONT>
<BR><FONT SIZE=3D2>>> see if the time is out of the backup window =
or not, if it is, then</FONT>
<BR><FONT SIZE=3D2>>> exit from the script.</FONT>
<BR><FONT SIZE=3D2>></FONT>
<BR><FONT SIZE=3D2>> You are overthinking it. This is what =
NetBackup's schedule windows do</FONT>
<BR><FONT SIZE=3D2>> already. They define the time that a backup is =
allowed to start. So, if</FONT>
<BR><FONT SIZE=3D2>> your window is from 01:00 to 04:00, if the =
backup tries to run at </FONT>
<BR><FONT SIZE=3D2>> 05:00,</FONT>
<BR><FONT SIZE=3D2>> it will fail with a 196. No bpstart_notify =
logic is necessary.</FONT>
<BR><FONT SIZE=3D2>></FONT>
<BR><FONT SIZE=3D2>> -- </FONT>
<BR><FONT SIZE=3D2>> David Rock</FONT>
<BR><FONT SIZE=3D2>> david AT graniteweb DOT com</FONT>
<BR><FONT SIZE=3D2>></FONT>
<BR><FONT SIZE=3D2>> =
_______________________________________________</FONT>
<BR><FONT SIZE=3D2>> Veritas-bu maillist - =
Veritas-bu AT mailman.eng.auburn DOT edu</FONT>
<BR><FONT SIZE=3D2>> <A =
HREF=3D"http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu"; =
TARGET=3D"_blank">http://mailman.eng.auburn.edu/mailman/listinfo/veritas=
-bu</A></FONT>
<BR><FONT SIZE=3D2>></FONT>
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