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RE: Archive Logs

From: David Barbour <DBarbour_at_connectsouth.com>
Date: Tue, 25 Jul 2000 13:35:49 -0500
Message-Id: <10569.112918@fatcity.com>


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Alter system switch logfile;  

David A. Barbour
Oracle DBA - ConnectSouth
512-681-9438
dbarbour_at_connectsouth.com

-----Original Message-----
From: Siva_Chintalapati [mailto:Siva_Chintalapati_at_satyam.com] Sent: Tuesday, July 25, 2000 12:48 PM
To: Multiple recipients of list ORACLE-L Subject: RE: Archive Logs

Hi,
Can U pl say me how to perform Log Switch??

Regards
Siva



From: Eric Lansu[SMTP:eric.lansu_at_quicknet.nl] Reply To: ORACLE-L_at_fatcity.com
Sent: Tuesday, July 25, 2000 2:09 PM
To:     Multiple recipients of list ORACLE-L 
Subject:        Re: Archive Logs 


	When backup starts, I perform a log-switch, and copy all archive
log-files
to a 'yesterday' directory.
After the HOT-backup is completed, I perform another log-switch, and backup all archive-logs to tape as well.
Next day the 'yesterday' directory is cleaned, and the process starts again.

The archive log-directory is on a seperate disk on a little-used controller.

This way I'm independent of disk-storage from other applications. The database really stops on archive-disk full!

        Eric Lansu

        > hi,
> These archive log files are useful to recover the data inbetween a cold

> or a hot backup. i.e. data lost inbetween backups and if it is not stored

> anywhere. also if u r regularly taking any one of these backup then
there
> is no need for the prevoius archive logs. Archvie logs file destination
> should not be full, b'cos ur entire database hangs since it cannot write
> into it.
> rgds
> bharanidharan
>
> Sajid Iqbal wrote:
>
> > Hello All
> >
> > Our 24x7 database is in archive log mode, we do online backups to tape
> > every other day..
> >
> > However the archive logs (which there are a lot of) we only back them up

> > when the destination dir is almost full.
> >
> > My question is how often should we backup these archive logs.. also how
> > long to keep these archive logs on tape.. before they are of no use ?
> >
> > Regards
> >
> > Saj Iqbal
> >
> > --
> > U-NET Ltd a VIA NET.WORKS Inc company
> > Sajid Iqbal | Mail : sajid_at_u-net.net
> > Database DBA/Developer | Ext : 4485
> > U-NET Ltd | ICQ : 43903417
> > Warrington, Cheshire, UK |
> >
> > --
> > Author: Sajid Iqbal
> > INET: sajid_at_u-net.net

        --
Author: Eric Lansu
  INET: eric.lansu_at_quicknet.nl

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<DIV><FONT color=#0000ff face=Arial size=2>Alter system switch logfile;<BR></FONT></DIV>
<DIV>&nbsp;</DIV>
<P><FONT face=Arial size=2>David A. Barbour</FONT> <BR><FONT face=Arial
size=2>Oracle DBA - ConnectSouth</FONT> <BR><FONT face=Arial 
size=2>512-681-9438</FONT> <BR><FONT face=Arial 
size=2>dbarbour_at_connectsouth.com</FONT> </P>
<BLOCKQUOTE>
  <DIV align=left class=OutlookMessageHeader dir=ltr><FONT face=Tahoma   size=2>-----Original Message-----<BR><B>From:</B> Siva_Chintalapati   [mailto:Siva_Chintalapati_at_satyam.com]<BR><B>Sent:</B> Tuesday, July 25, 2000   12:48 PM<BR><B>To:</B> Multiple recipients of list ORACLE-L<BR><B>Subject:</B>   RE: Archive Logs<BR><BR></DIV></FONT>
  <P><FONT color=#0000ff face=Arial size=2>Hi,</FONT> <BR><FONT color=#0000ff   face=Arial size=2>Can U pl say me how to perform Log Switch??</FONT> </P>   <P><FONT color=#0000ff face=Arial size=2>Regards</FONT> <BR><FONT   color=#0000ff face=Arial size=2>Siva</FONT> </P><BR>   <UL>
    <P><FONT face="MS Sans Serif" size=1>----------</FONT> <BR><B><FONT     face="MS Sans Serif" size=1>From:</FONT></B> &nbsp; <FONT     face="MS Sans Serif" size=1>Eric Lansu[SMTP:eric.lansu_at_quicknet.nl]</FONT>     <BR><B><FONT face="MS Sans Serif" size=1>Reply To:</FONT></B>     &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <FONT face="MS Sans Serif"     size=1>ORACLE-L_at_fatcity.com</FONT> <BR><B><FONT face="MS Sans Serif"     size=1>Sent:</FONT></B> &nbsp; <FONT face="MS Sans Serif" size=1>Tuesday,     July 25, 2000 2:09 PM</FONT> <BR><B><FONT face="MS Sans Serif"
    size=1>To:</FONT></B> &nbsp;&nbsp;&nbsp; <FONT face="MS Sans Serif" 
    size=1>Multiple recipients of list ORACLE-L</FONT> <BR><B><FONT 
    face="MS Sans Serif" size=1>Subject:</FONT></B> 
    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <FONT face="MS Sans Serif" size=1>Re:     Archive Logs</FONT> </P><BR>
    <P><FONT face=Arial size=2>When backup starts, I perform a log-switch, and     copy all archive log-files</FONT> <BR><FONT face=Arial size=2>to a     'yesterday' directory.</FONT> <BR><FONT face=Arial size=2>After the     HOT-backup is completed, I perform another log-switch, and backup</FONT>     <BR><FONT face=Arial size=2>all archive-logs to tape as well.</FONT>     <BR><FONT face=Arial size=2>Next day the 'yesterday' directory is cleaned,     and the process starts again.</FONT> <BR><FONT face=Arial size=2>The archive     log-directory is on a seperate disk on a little-used controller.</FONT>     <BR><FONT face=Arial size=2>This way I'm independent of disk-storage from     other applications. The</FONT> <BR><FONT face=Arial size=2>database really     stops on archive-disk full!</FONT> </P>     <P><FONT face=Arial size=2>Eric Lansu</FONT> </P>     <P><FONT face=Arial size=2>----- Original Message -----</FONT> <BR><FONT     face=Arial size=2>To: "Multiple recipients of list ORACLE-L"     &lt;ORACLE-L_at_fatcity.com&gt;</FONT> <BR><FONT face=Arial size=2>Sent:     Tuesday, 25 July 2000 07:58</FONT> </P><BR>     <P><FONT face=Arial size=2>&gt; hi,</FONT> <BR><FONT face=Arial     size=2>&gt;&nbsp;&nbsp;&nbsp; These archive log files are useful to recover     the data inbetween a cold</FONT> <BR><FONT face=Arial size=2>&gt; or a hot     backup. i.e. data lost inbetween backups and if it is not&nbsp;     stored</FONT> <BR><FONT face=Arial size=2>&gt; anywhere.&nbsp;&nbsp; also if     u r regularly taking any one of these backup then</FONT> <BR><FONT     face=Arial size=2>there</FONT> <BR><FONT face=Arial size=2>&gt; is no need     for the prevoius&nbsp; archive logs. Archvie logs file destination</FONT>     <BR><FONT face=Arial size=2>&gt; should not be full, b'cos ur entire     database hangs since it cannot write</FONT> <BR><FONT face=Arial size=2>&gt;     into it.</FONT> <BR><FONT face=Arial size=2>&gt; rgds</FONT> <BR><FONT
    face=Arial size=2>&gt; bharanidharan</FONT> <BR><FONT face=Arial 
    size=2>&gt;</FONT> <BR><FONT face=Arial size=2>&gt; Sajid Iqbal 
    wrote:</FONT> <BR><FONT face=Arial size=2>&gt;</FONT> <BR><FONT face=Arial 
    size=2>&gt; &gt; Hello All</FONT> <BR><FONT face=Arial size=2>&gt;     &gt;</FONT> <BR><FONT face=Arial size=2>&gt; &gt; Our 24x7 database is in     archive log mode, we do online backups to tape</FONT> <BR><FONT face=Arial     size=2>&gt; &gt; every other day..</FONT> <BR><FONT face=Arial size=2>&gt;     &gt;</FONT> <BR><FONT face=Arial size=2>&gt; &gt; However the archive logs     (which there are a lot of) we only back them up</FONT> <BR><FONT face=Arial     size=2>&gt; &gt; when the destination dir is almost full.</FONT> <BR><FONT     face=Arial size=2>&gt; &gt;</FONT> <BR><FONT face=Arial size=2>&gt; &gt; My     question is how often should we backup these archive logs.. also how</FONT>     <BR><FONT face=Arial size=2>&gt; &gt; long to keep these archive logs on     tape.. before they are of no use ?</FONT> <BR><FONT face=Arial size=2>&gt;     &gt;</FONT> <BR><FONT face=Arial size=2>&gt; &gt; Regards</FONT> <BR><FONT     face=Arial size=2>&gt; &gt;</FONT> <BR><FONT face=Arial size=2>&gt; &gt; Saj     Iqbal</FONT> <BR><FONT face=Arial size=2>&gt; &gt;</FONT> <BR><FONT     face=Arial size=2>&gt; &gt; --</FONT> <BR><FONT face=Arial size=2>&gt; &gt;     U-NET Ltd&nbsp; a VIA NET.WORKS Inc company</FONT> <BR><FONT face=Arial     size=2>&gt; &gt; Sajid
    Iqbal&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;     | Mail : sajid_at_u-net.net</FONT> <BR><FONT face=Arial size=2>&gt; &gt;     Database DBA/Developer&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; |     Ext&nbsp; : 4485</FONT> <BR><FONT face=Arial size=2>&gt; &gt; U-NET     Ltd&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;     | ICQ&nbsp; : 43903417</FONT> <BR><FONT face=Arial size=2>&gt; &gt;     Warrington, Cheshire, UK&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; |</FONT>     <BR><FONT face=Arial size=2>&gt; &gt;</FONT> <BR><FONT face=Arial     size=2>&gt; &gt; --</FONT> <BR><FONT face=Arial size=2>&gt; &gt; Author:     Sajid Iqbal</FONT> <BR><FONT face=Arial size=2>&gt; &gt;&nbsp;&nbsp; INET:     sajid_at_u-net.net</FONT> </P><BR>
    <P><FONT face=Arial size=2>-- </FONT><BR><FONT face=Arial size=2>Author:     Eric Lansu</FONT> <BR><FONT face=Arial size=2>&nbsp; INET:     eric.lansu_at_quicknet.nl</FONT> </P>
    <P><FONT face=Arial size=2>Fat City Network Services&nbsp;&nbsp;&nbsp; --     (858) 538-5051&nbsp; FAX: (858) 538-5051</FONT> <BR><FONT face=Arial     size=2>San Diego, California&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; --     Public Internet access / Mailing Lists</FONT> <BR><FONT face=Arial
    size=2>--------------------------------------------------------------------</FONT> 
    <BR><FONT face=Arial size=2>To REMOVE yourself from this mailing list, send     an E-Mail message</FONT> <BR><FONT face=Arial size=2>to:     ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in</FONT>     <BR><FONT face=Arial size=2>the message BODY, include a line containing:     UNSUB ORACLE-L</FONT> <BR><FONT face=Arial size=2>(or the name of mailing     list you want to be removed from).&nbsp; You may</FONT> <BR><FONT face=Arial Received on Tue Jul 25 2000 - 13:35:49 CDT

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