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(This is a repost snipped to meet mail list size requirements)
(Apologies for HTML - it makes the tables below look right, though.)
It doesn't seem this simple, that a subsequent backup cycle is based on
completion time of the previous cycle. Here's a listing from a client I
have:
Job_Type Job_ID State Status Class Client K_Bytes
Files Started Elapsed
Backup 216873
<http://backup00.lodo.in.exactis.com/cgi-bin/job_detail?jobid=216873> Done
OK System_Demux dev1.devel.exactis.com 189169 448 09/23/2002
18:25:20 00:44:48
Backup 216668
<http://backup00.lodo.in.exactis.com/cgi-bin/job_detail?jobid=216668> Done
OK System_Demux dev1.devel.exactis.com 1069898 308
09/22/2002 18:08:20 00:47:37
Backup 216449
<http://backup00.lodo.in.exactis.com/cgi-bin/job_detail?jobid=216449> Done
OK System_Demux dev1.devel.exactis.com 135433 123 09/21/2002
18:08:20 00:45:28
Backup 216238
<http://backup00.lodo.in.exactis.com/cgi-bin/job_detail?jobid=216238> Done
OK System_Demux dev1.devel.exactis.com 371317 404 09/20/2002
18:02:00 00:46:15
Backup 216036
<http://backup00.lodo.in.exactis.com/cgi-bin/job_detail?jobid=216036> Done
OK System_Demux dev1.devel.exactis.com 197634 735 09/19/2002
18:19:50 00:42:11
Backup 215815
<http://backup00.lodo.in.exactis.com/cgi-bin/job_detail?jobid=215815> Done
OK System_Demux dev1.devel.exactis.com 44068576 905803
09/18/2002 18:08:20 04:46:26
Backup 215597
<http://backup00.lodo.in.exactis.com/cgi-bin/job_detail?jobid=215597> Done
OK System_Demux dev1.devel.exactis.com 205265 900 09/17/2002
18:05:00 00:45:14
This is a standard weekly full & nightly incremental. The incrementals (the
short ones) are occuring pretty much neatly after the 18:00 start time for
the schedule despite the elapsed time. The schedule is set for a one day
frequency. If NB was adding time to the completion time, the incrementals
would slowly work their way around the clock.
Here's another one - set on a one-hour incremental frequency (oracle
archived redo logs - same column headings as above):
If you look at job 216823, at 22 minutes long, the next job starts 1:05
later, not 1:22. On the other hand, job 216815 ran 18 minutes and the next
job ran 1:15 later.
Backup 216830
<http://backup00.lodo.in.exactis.com/cgi-bin/job_detail?jobid=216830> Done
OK Oracle_Redo db01.lodo.in.exactis.com 32 0
09/23/2002 13:18:10 00:00:11
Backup 216823
<http://backup00.lodo.in.exactis.com/cgi-bin/job_detail?jobid=216823> Done
OK Oracle_Redo db01.lodo.in.exactis.com 2867232 7
09/23/2002 12:13:00 00:22:43
Backup 216815
<http://backup00.lodo.in.exactis.com/cgi-bin/job_detail?jobid=216815> Done
OK Oracle_Redo db01.lodo.in.exactis.com 2457632 6
09/23/2002 10:58:00 00:18:15
On yet a third hand, job 216778 ran only a minute but the next job was
scheduled at 1:10 later ( I'm thinking the schedule wake-up-frequency is the
cause here). These all backup to a disk STU, by the way, so tape delays
should not really be part of the equation.
Backup 216781
<http://backup00.lodo.in.exactis.com/cgi-bin/job_detail?jobid=216781> Done
OK Oracle_Redo db01.lodo.in.exactis.com 409600 1
09/23/2002 05:08:20 00:01:10
Backup 216778
<http://backup00.lodo.in.exactis.com/cgi-bin/job_detail?jobid=216778> Done
OK Oracle_Redo db01.lodo.in.exactis.com 409632 1
09/23/2002 03:58:20 00:01:09
In general, the next cycle seems to be scheduled from the previous
schedule's start time, not the completion time, with variations due to the
scheduler wake-up frequncy.
-Mark
-----Original Message-----
From: W. Curtis Preston [ mailto:curtis.lists AT backupcentral DOT com
<mailto:curtis.lists AT backupcentral DOT com> ]
Sent: Tuesday, September 24, 2002 10:52 AM
This is a very common FAQ, and we should put it in the FAQ.
NetBackup checks the interval against the amount of time since the
COMPLETION time of the last backup. Therefore, a backup (with a 24 hour
frequency) that doesn't finish until 5 AM will not start until 24 hours
after 5 AM, if the window is open.
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<P><FONT size=2><SPAN class=453013017-24092002><EM>(This is a repost snipped to
meet mail list size requirements)</EM></SPAN></FONT></P>
<P><FONT size=2><SPAN class=453013017-24092002></SPAN>(Apologies for HTML - it
makes the tables below look right, though.)<SPAN
class=453013017-24092002> </SPAN></FONT></P>
<P><FONT size=2>It doesn't seem this simple, that a subsequent backup cycle is
based on completion time of the previous cycle. Here's a listing from a
client I have:<BR></P>
<TABLE align=center bgColor=white border=1>
<TBODY>
<TR>
<TD><B>Job_Type</B></TD>
<TD><B>Job_ID</B></TD>
<TD><B>State</B></TD>
<TD><B>Status</B></TD>
<TD><B>Class</B></TD>
<TD><B>Client</B></TD>
<TD><B>K_Bytes</B></TD>
<TD><B>Files</B></TD>
<TD><B>Started</B></TD>
<TD><B>Elapsed</B></TD></TR>
<TR>
<TD noWrap>Backup</TD>
<TD noWrap><FONT color=black><A
href="http://backup00.lodo.in.exactis.com/cgi-bin/job_detail?jobid=216873">216873</A>
</FONT></TD>
<TD noWrap><FONT color=black>Done</FONT></TD>
<TD noWrap><FONT color=black>OK</FONT></TD>
<TD noWrap><FONT color=black>System_Demux</FONT></TD>
<TD noWrap align=right><FONT color=black>dev1.devel.exactis.com</FONT></TD>
<TD noWrap align=right><FONT color=black>189169</FONT></TD>
<TD noWrap align=right><FONT color=black>448</FONT></TD>
<TD noWrap><FONT color=black>09/23/2002 18:25:20</FONT></TD>
<TD noWrap><FONT color=black>00:44:48</FONT></TD></TR>
<TR>
<TD noWrap><FONT color=black>Backup</FONT></TD>
<TD noWrap><FONT color=black><A
href="http://backup00.lodo.in.exactis.com/cgi-bin/job_detail?jobid=216668">216668</A>
</FONT></TD>
<TD noWrap><FONT color=black>Done</FONT></TD>
<TD noWrap><FONT color=black>OK</FONT></TD>
<TD noWrap><FONT color=black>System_Demux</FONT></TD>
<TD noWrap align=right><FONT color=black>dev1.devel.exactis.com</FONT></TD>
<TD noWrap align=right><FONT color=black>1069898</FONT></TD>
<TD noWrap align=right><FONT color=black>308</FONT></TD>
<TD noWrap><FONT color=black>09/22/2002 18:08:20</FONT></TD>
<TD noWrap><FONT color=black>00:47:37</FONT></TD></TR>
<TR>
<TD noWrap><FONT color=black>Backup</FONT></TD>
<TD noWrap><FONT color=black><A
href="http://backup00.lodo.in.exactis.com/cgi-bin/job_detail?jobid=216449">216449</A>
</FONT></TD>
<TD noWrap><FONT color=black>Done</FONT></TD>
<TD noWrap><FONT color=black>OK</FONT></TD>
<TD noWrap><FONT color=black>System_Demux</FONT></TD>
<TD noWrap align=right><FONT color=black>dev1.devel.exactis.com</FONT></TD>
<TD noWrap align=right><FONT color=black>135433</FONT></TD>
<TD noWrap align=right><FONT color=black>123</FONT></TD>
<TD noWrap><FONT color=black>09/21/2002 18:08:20</FONT></TD>
<TD noWrap><FONT color=black>00:45:28</FONT></TD></TR>
<TR>
<TD noWrap><FONT color=black>Backup</FONT></TD>
<TD noWrap><FONT color=black><A
href="http://backup00.lodo.in.exactis.com/cgi-bin/job_detail?jobid=216238">216238</A>
</FONT></TD>
<TD noWrap><FONT color=black>Done</FONT></TD>
<TD noWrap><FONT color=black>OK</FONT></TD>
<TD noWrap><FONT color=black>System_Demux</FONT></TD>
<TD noWrap align=right><FONT color=black>dev1.devel.exactis.com</FONT></TD>
<TD noWrap align=right><FONT color=black>371317</FONT></TD>
<TD noWrap align=right><FONT color=black>404</FONT></TD>
<TD noWrap><FONT color=black>09/20/2002 18:02:00</FONT></TD>
<TD noWrap><FONT color=black>00:46:15</FONT></TD></TR>
<TR>
<TD noWrap><FONT color=black>Backup</FONT></TD>
<TD noWrap><FONT color=black><A
href="http://backup00.lodo.in.exactis.com/cgi-bin/job_detail?jobid=216036">216036</A>
</FONT></TD>
<TD noWrap><FONT color=black>Done</FONT></TD>
<TD noWrap><FONT color=black>OK</FONT></TD>
<TD noWrap><FONT color=black>System_Demux</FONT></TD>
<TD noWrap align=right><FONT color=black>dev1.devel.exactis.com</FONT></TD>
<TD noWrap align=right><FONT color=black>197634</FONT></TD>
<TD noWrap align=right><FONT color=black>735</FONT></TD>
<TD noWrap><FONT color=black>09/19/2002 18:19:50</FONT></TD>
<TD noWrap><FONT color=black>00:42:11</FONT></TD></TR>
<TR>
<TD noWrap><FONT color=black>Backup</FONT></TD>
<TD noWrap><FONT color=black><A
href="http://backup00.lodo.in.exactis.com/cgi-bin/job_detail?jobid=215815">215815</A>
</FONT></TD>
<TD noWrap><FONT color=black>Done</FONT></TD>
<TD noWrap><FONT color=black>OK</FONT></TD>
<TD noWrap><FONT color=black>System_Demux</FONT></TD>
<TD noWrap align=right><FONT color=black>dev1.devel.exactis.com</FONT></TD>
<TD noWrap align=right><FONT color=black>44068576</FONT></TD>
<TD noWrap align=right><FONT color=black>905803</FONT></TD>
<TD noWrap><FONT color=black>09/18/2002 18:08:20</FONT></TD>
<TD noWrap><FONT color=black>04:46:26</FONT></TD></TR>
<TR>
<TD noWrap><FONT color=black>Backup</FONT></TD>
<TD noWrap><FONT color=black><A
href="http://backup00.lodo.in.exactis.com/cgi-bin/job_detail?jobid=215597">215597</A>
</FONT></TD>
<TD noWrap>Done</TD>
<TD noWrap>OK</TD>
<TD noWrap>System_Demux</TD>
<TD noWrap align=right>dev1.devel.exactis.com</TD>
<TD noWrap align=right>205265</TD>
<TD noWrap align=right>900</TD>
<TD noWrap>09/17/2002 18:05:00</TD>
<TD noWrap>00:45:14</TD></TR></TBODY></TABLE>
<P><BR>This is a standard weekly full & nightly incremental. The
incrementals (the short ones) are occuring pretty much neatly after the 18:00
start time for the schedule despite the elapsed time. The schedule is set
for a one day frequency. If NB was adding time to the completion time,
the
incrementals would slowly work their way around the clock.</P>
<P>Here's another one - set on a one-hour incremental frequency (oracle
archived
redo logs - same column headings as above):</P>
<DIV><FONT face=Arial>If you look at job 216823, at 22 minutes long, the next
job starts 1:05 later, not 1:22. On the other hand, job 216815 ran 18 minutes
and the next job ran 1:15 later. </FONT></DIV>
<DIV><FONT face=Arial></FONT> </DIV>
<DIV><FONT face=Arial>
<TABLE align=center bgColor=white border=1>
<TBODY>
<TR>
<TD noWrap><FONT color=black>Backup</FONT></TD>
<TD noWrap><FONT color=black><A
href="http://backup00.lodo.in.exactis.com/cgi-bin/job_detail?jobid=216830">216830</A>
</FONT></TD>
<TD noWrap><FONT color=black>Done</FONT></TD>
<TD noWrap><FONT color=black>OK</FONT></TD>
<TD noWrap><FONT color=black>Oracle_Redo</FONT></TD>
<TD noWrap align=right><FONT
color=black>db01.lodo.in.exactis.com</FONT></TD>
<TD noWrap align=right><FONT color=black>32</FONT></TD>
<TD noWrap align=right><FONT color=black>0</FONT></TD>
<TD noWrap><FONT color=black>09/23/2002 13:18:10</FONT></TD>
<TD noWrap><FONT color=black>00:00:11</FONT></TD></TR>
<TR>
<TD noWrap><FONT color=black>Backup</FONT></TD>
<TD noWrap><FONT color=black><A
href="http://backup00.lodo.in.exactis.com/cgi-bin/job_detail?jobid=216823">216823</A>
</FONT></TD>
<TD noWrap><FONT color=black>Done</FONT></TD>
<TD noWrap><FONT color=black>OK</FONT></TD>
<TD noWrap><FONT color=black>Oracle_Redo</FONT></TD>
<TD noWrap align=right><FONT
color=black>db01.lodo.in.exactis.com</FONT></TD>
<TD noWrap align=right><FONT color=black>2867232</FONT></TD>
<TD noWrap align=right><FONT color=black>7</FONT></TD>
<TD noWrap><FONT color=black>09/23/2002 12:13:00</FONT></TD>
<TD noWrap><FONT color=black>00:22:43</FONT></TD></TR>
<TR>
<TD noWrap><FONT color=black>Backup</FONT></TD>
<TD noWrap><FONT color=black><A
href="http://backup00.lodo.in.exactis.com/cgi-bin/job_detail?jobid=216815">216815</A>
</FONT></TD>
<TD noWrap><FONT color=black>Done</FONT></TD>
<TD noWrap><FONT color=black>OK</FONT></TD>
<TD noWrap><FONT color=black>Oracle_Redo</FONT></TD>
<TD noWrap align=right><FONT
color=black>db01.lodo.in.exactis.com</FONT></TD>
<TD noWrap align=right><FONT color=black>2457632</FONT></TD>
<TD noWrap align=right><FONT color=black>6</FONT></TD>
<TD noWrap><FONT color=black>09/23/2002 10:58:00</FONT></TD>
<TD noWrap><FONT
color=black>00:18:15</FONT></TD></TR></TBODY></TABLE></FONT></DIV>
<DIV><FONT face=Arial></FONT> </DIV>
<DIV><FONT face=Arial>On yet a third hand, job 216778 ran only a minute but the
next job was scheduled at 1:10 later ( I'm thinking the schedule
wake-up-frequency is the cause here). These all backup to a disk STU,
by the way, so tape delays should not really be part of the
equation.
</FONT></DIV>
<DIV><FONT face=Arial></FONT> </DIV>
<DIV><FONT face=Arial>
<TABLE align=center bgColor=white border=1>
<TBODY>
<TR>
<TD noWrap><FONT color=black>Backup</FONT></TD>
<TD noWrap><FONT color=black><A
href="http://backup00.lodo.in.exactis.com/cgi-bin/job_detail?jobid=216781">216781</A>
</FONT></TD>
<TD noWrap><FONT color=black>Done</FONT></TD>
<TD noWrap><FONT color=black>OK</FONT></TD>
<TD noWrap><FONT color=black>Oracle_Redo</FONT></TD>
<TD noWrap align=right><FONT
color=black>db01.lodo.in.exactis.com</FONT></TD>
<TD noWrap align=right><FONT color=black>409600</FONT></TD>
<TD noWrap align=right><FONT color=black>1</FONT></TD>
<TD noWrap><FONT color=black>09/23/2002 05:08:20</FONT></TD>
<TD noWrap><FONT color=black>00:01:10</FONT></TD></TR>
<TR>
<TD noWrap><FONT color=black>Backup</FONT></TD>
<TD noWrap><FONT color=black><A
href="http://backup00.lodo.in.exactis.com/cgi-bin/job_detail?jobid=216778">216778</A>
</FONT></TD>
<TD noWrap><FONT color=black>Done</FONT></TD>
<TD noWrap><FONT color=black>OK</FONT></TD>
<TD noWrap><FONT color=black>Oracle_Redo</FONT></TD>
<TD noWrap align=right><FONT
color=black>db01.lodo.in.exactis.com</FONT></TD>
<TD noWrap align=right><FONT color=black>409632</FONT></TD>
<TD noWrap align=right><FONT color=black>1</FONT></TD>
<TD noWrap><FONT color=black>09/23/2002 03:58:20</FONT></TD>
<TD noWrap><FONT
color=black>00:01:09</FONT></TD></TR></TBODY></TABLE></FONT></DIV>
<DIV><FONT face=Arial></FONT> </DIV>
<DIV><FONT face=Arial>In general, the next cycle seems to be scheduled from the
previous schedule's start time, not the completion time, with variations due to
the scheduler wake-up frequncy. </FONT></DIV>
<DIV><FONT face=Arial></FONT> </DIV>
<DIV><FONT face=Arial>-Mark</FONT><BR><BR>-----Original Message-----<BR>From:
W.
Curtis Preston [<A
href="mailto:curtis.lists AT backupcentral DOT com">mailto:curtis.lists AT
backupcentral DOT com</A>]<BR>Sent:
Tuesday, September 24, 2002 10:52 AM<BR><BR>This is a very common FAQ, and we
should put it in the FAQ.<BR><BR>NetBackup checks the interval against the
amount of time since the<BR>COMPLETION time of the last backup.
Therefore,
a backup (with a 24 hour<BR>frequency) that doesn't finish until 5 AM will not
start until 24 hours<BR>after 5 AM, if the window is
open.</DIV></FONT></BODY></HTML>
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