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8 Jul 11 - Database Trends and Applications - Managing Time Series Data with Informix... Read
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10 February 2010 - The Wall Street Journal - International Business Machines is expanding an initiative to win over students and professors on its products. How do they lure the college crowd?... Read

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IDS Forum

Re: running oncheck takes a long time

Posted By: Dominic Seah Chin Teck
Date: Tuesday, 19 April 2005, at 6:45 a.m.

<FONT face=3D"Default Sans Serif,Verdana,Arial,Helvetica,sans-serif" size=
=3D2><DIV><BR><DIV><BR><DIV><FONT color=3D#990099>-----Dominic Seah Chin Te=
ck/Parkway/SG wrote: -----<BR><BR></FONT></DIV><blockquote style=3D"PADDING=
-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px =
solid; MARGIN-RIGHT: 0px">To:<BR>From: Dominic Seah Chi=
n Teck/Parkway/SG<BR>Date: 04/19/2005 10:10AM<BR>cc:<BR>Subjec=
t: running oncheck takes a long time<BR><BR><FONT face=3D"Default Sans Seri=
f,Verdana,Arial,Helvetica,sans-serif" size=3D2><FONT face=3D"Default Sans S=
erif,Verdana,Arial,Helvetica,sans-serif" size=3D2><DIV>Hi <FONT face=3D"Cou=
rier New">Tilman,</FONT></DIV><P>Regarding oncheck -cD or oncheck -cI.</P><=
P><U>Our practice :</U></P><P>1) perform restore of production data into te=
st box once a month. Do oncheck(data &amp; index) to ensure no corruption.<=
/P><P>Question : This practice a good way to check that production data has=
no data &amp; index corruption ? Please advise.</P><P>2)&nbsp;Running onch=
eck -cD &lt;sid&gt; takes as much as 16 hours on 660gb database size. </P><=
P>Question : Can we do parallel running of oncheck on tables using scripts =
to reduce the timing ? We have tried this and found that the timing of para=
llel running is worse than serial running vai oncheck -cD &lt;SID&gt;. Look=
s like run into deadlock... or bottleneck. Please advise.</P><DIV><BR></DIV=
><DIV>Thank you</DIV></FONT></FONT><BR><BR>Disclaimer:-<BR>The information =
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tly delete the original and <BR>any copy of this e-mail and any printout th=
ereof.<BR></blockquote><br></DIV></DIV></FONT><br /><br />Disclaimer:-<br /=
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Messages In This Thread

  • Re: running oncheck takes a long time
    Dominic Seah Chin Teck -- Tuesday, 19 April 2005, at 6:45 a.m.

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