Veritas-bu

[Veritas-bu] Catalog management

2003-03-25 13:07:00
Subject: [Veritas-bu] Catalog management
From: Mark.Donaldson AT experianems DOT com (Donaldson, Mark)
Date: Tue, 25 Mar 2003 11:07:00 -0700
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(resending to list snipped for size)
 
Right, files must begin on sector boundaries.  But the 200k with a 512k
sector example you give will report
 
Size: 200K
Size-on-disk: 512K
 
...so that "size-on-disk" is larger than "size".  You've got the reverse,
size is larger than size-on-disk so this looks compressed.  I'm not sure how
you could get size-on-disk smaller than "size" unless there's compression
involved.  Perhaps another NT admin can chime in on this one.  My NT
knowledge is limited.
 
-M

-----Original Message-----
From: Moses, Darby [mailto:DMoses AT leviton DOT com]
Sent: Tuesday, March 25, 2003 10:39 AM
To: Donaldson, Mark; Donaldson, Mark; veritas-bu AT mailman.eng.auburn DOT edu
Subject: RE: [Veritas-bu] Catalog management


I stand corrected 3.44GB.  But no the disk nor data is compressed.  I was
under the assumption that if you have a sector size of 512k and have a file
size of 200k the 312k is wasted because you can only have one file on a
sector.  But if you reduce the sector size to 256k then only 56k is lost.
Am I wrong?  Please correct.
 
 
Thanks,
Darby Moses
Operations
Leviton Mfg.

-----Original Message-----
From: Donaldson, Mark [mailto:Mark.Donaldson AT experianems DOT com] 
Sent: Tuesday, March 25, 2003 12:39 PM
To: Moses, Darby; Donaldson, Mark; veritas-bu AT mailman.eng.auburn DOT edu
Subject: RE: [Veritas-bu] Catalog management


First off, I assume you mean: 3.44GB (three-point-four-four) with a
size-on-disk of 1.38G.  
 
Sector size issues would yield a larger size-on-disk, not smaller.  This
looks like your catalog is in a compressed drive, meaning it's 3.44G of data
squished into a 1.38G of space.  
 
This should slow your catalog performance but otherwise, as far as I know,
be acceptable.
 
-M

-----Original Message-----
From: Moses, Darby [mailto:DMoses AT leviton DOT com]
Sent: Tuesday, March 25, 2003 10:15 AM
To: Donaldson, Mark; veritas-bu AT mailman.eng.auburn DOT edu
Subject: RE: [Veritas-bu] Catalog management


OK here we go.
Size:344 GB
Size on disk:1.38 GB
If I read this right there is only 1.38GB of data the rest is wasted.
I think this is because of the number of small files combined with the
sector size on the disk.
If I could reduce the sector size I could recover as much as 2GB of space!!!
Are you folks in agreement with that and if so can I reduce the sector size
without reinstalling the whole system?
 
 
Thanks,
Darby Moses
Operations
Leviton Mfg. 

<snip> 

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<DIV><SPAN class=776185317-25032003><FONT face=Arial color=#0000ff 
size=2>(resending to list snipped for size)</FONT></SPAN></DIV>
<DIV><SPAN class=776185317-25032003><FONT face=Arial color=#0000ff 
size=2></FONT></SPAN>&nbsp;</DIV>
<DIV><SPAN class=776185317-25032003><FONT face=Arial color=#0000ff 
size=2>Right, 
files must begin on sector boundaries.&nbsp;&nbsp;But the 200k with a 512k 
sector example you give will report</FONT></SPAN></DIV>
<DIV><SPAN class=776185317-25032003><FONT face=Arial color=#0000ff 
size=2></FONT></SPAN>&nbsp;</DIV>
<DIV><SPAN class=776185317-25032003><FONT face=Arial color=#0000ff size=2>Size: 
200K</FONT></SPAN></DIV>
<DIV><SPAN class=776185317-25032003><FONT face=Arial color=#0000ff 
size=2>Size-on-disk: 512K</FONT></SPAN></DIV>
<DIV><SPAN class=776185317-25032003><FONT face=Arial color=#0000ff 
size=2></FONT></SPAN>&nbsp;</DIV>
<DIV><SPAN class=776185317-25032003><FONT face=Arial color=#0000ff size=2>...so 
that "size-on-disk" is larger than "size".&nbsp; You've got the reverse, size 
is 
larger than size-on-disk so this looks compressed.&nbsp; I'm not sure how you 
could get size-on-disk smaller than "size" unless there's compression 
involved.&nbsp; Perhaps another NT admin can chime in on this one.&nbsp; My NT 
knowledge is limited.</FONT></SPAN></DIV>
<DIV><SPAN class=776185317-25032003><FONT face=Arial color=#0000ff 
size=2></FONT></SPAN>&nbsp;</DIV>
<DIV><SPAN class=776185317-25032003><FONT face=Arial color=#0000ff 
size=2>-M</FONT></SPAN></DIV>
<BLOCKQUOTE dir=ltr style="MARGIN-RIGHT: 0px">
  <DIV class=OutlookMessageHeader dir=ltr align=left><FONT face=Tahoma 
  size=2>-----Original Message-----<BR><B>From:</B> Moses, Darby 
  [mailto:DMoses AT leviton DOT com]<BR><B>Sent:</B> Tuesday, March 25, 2003 
10:39 
  AM<BR><B>To:</B> Donaldson, Mark; Donaldson, Mark; 
  veritas-bu AT mailman.eng.auburn DOT edu<BR><B>Subject:</B> RE: [Veritas-bu] 
Catalog 
  management<BR><BR></FONT></DIV>
  <DIV><SPAN class=397584517-25032003><FONT face=Arial color=#0000ff size=2>I 
  stand corrected 3.44GB.&nbsp; But no the disk nor data is compressed.&nbsp; I 
  was under the assumption that if you have a sector size of 512k and have a 
  file size of 200k the 312k is wasted because you can only have one file on a 
  sector.&nbsp; But if you reduce the sector size to 256k then only 56k is 
  lost.&nbsp; Am I wrong?&nbsp; Please correct.</FONT></SPAN></DIV>
  <DIV><FONT face=Arial color=#0000ff size=2></FONT>&nbsp;</DIV>
  <DIV><FONT face=Arial color=#0000ff size=2></FONT>&nbsp;</DIV>
  <DIV align=left><FONT face=Arial size=2>Thanks,</FONT></DIV>
  <DIV align=left><FONT face=Arial size=2>Darby Moses</FONT></DIV>
  <DIV align=left><FONT face=Arial size=2>Operations</FONT></DIV>
  <DIV align=left><FONT face=Arial size=2>Leviton Mfg.</FONT></DIV>
  <BLOCKQUOTE dir=ltr style="MARGIN-RIGHT: 0px">
    <DIV></DIV>
    <DIV class=OutlookMessageHeader lang=en-us dir=ltr align=left><FONT 
    face=Tahoma size=2>-----Original Message-----<BR><B>From:</B> Donaldson, 
    Mark [mailto:Mark.Donaldson AT experianems DOT com] <BR><B>Sent:</B> 
Tuesday, March 
    25, 2003 12:39 PM<BR><B>To:</B> Moses, Darby; Donaldson, Mark; 
    veritas-bu AT mailman.eng.auburn DOT edu<BR><B>Subject:</B> RE: 
[Veritas-bu] 
    Catalog management<BR><BR></FONT></DIV>
    <DIV><SPAN class=585203517-25032003><FONT face=Arial color=#0000ff 
    size=2>First off, I assume you mean: 3.44GB 
    (three-<STRONG>point</STRONG>-four-four) with a size-on-disk of 
1.38G.&nbsp; 
    </FONT></SPAN></DIV>
    <DIV><SPAN class=585203517-25032003><FONT face=Arial color=#0000ff 
    size=2></FONT></SPAN>&nbsp;</DIV>
    <DIV><SPAN class=585203517-25032003><FONT face=Arial color=#0000ff 
    size=2>Sector size issues would yield a larger size-on-disk, not 
    smaller.&nbsp; This looks like your catalog is in a compressed drive, 
    meaning it's 3.44G of data squished into a 1.38G of space.&nbsp; 
    </FONT></SPAN></DIV>
    <DIV><SPAN class=585203517-25032003><FONT face=Arial color=#0000ff 
    size=2></FONT></SPAN>&nbsp;</DIV>
    <DIV><SPAN class=585203517-25032003><FONT face=Arial color=#0000ff 
    size=2>This should slow your catalog performance but otherwise, as far as I 
    know, be acceptable.</FONT></SPAN></DIV>
    <DIV><SPAN class=585203517-25032003><FONT face=Arial color=#0000ff 
    size=2></FONT></SPAN>&nbsp;</DIV>
    <DIV><SPAN class=585203517-25032003><FONT face=Arial color=#0000ff 
    size=2>-M</FONT></SPAN></DIV>
    <BLOCKQUOTE dir=ltr style="MARGIN-RIGHT: 0px">
      <DIV class=OutlookMessageHeader dir=ltr align=left><FONT face=Tahoma 
      size=2>-----Original Message-----<BR><B>From:</B> Moses, Darby 
      [mailto:DMoses AT leviton DOT com]<BR><B>Sent:</B> Tuesday, March 25, 
2003 10:15 
      AM<BR><B>To:</B> Donaldson, Mark; 
      veritas-bu AT mailman.eng.auburn DOT edu<BR><B>Subject:</B> RE: 
[Veritas-bu] 
      Catalog management<BR><BR></FONT></DIV>
      <DIV><SPAN class=685542317-25032003><FONT face=Arial color=#0000ff 
      size=2>OK here we go.</FONT></SPAN></DIV>
      <DIV><SPAN class=685542317-25032003><FONT face=Arial color=#0000ff 
      size=2>Size:344 GB</FONT></SPAN></DIV>
      <DIV><SPAN class=685542317-25032003><FONT face=Arial color=#0000ff 
      size=2>Size on disk:1.38 GB</FONT></SPAN></DIV>
      <DIV><SPAN class=685542317-25032003><FONT face=Arial color=#0000ff 
      size=2>If I read this right there is only 1.38GB of data the rest is 
      wasted.</FONT></SPAN></DIV>
      <DIV><SPAN class=685542317-25032003><FONT face=Arial color=#0000ff 
      size=2>I&nbsp;think this is because of the number of small files combined 
      with the sector size on the disk.</FONT></SPAN></DIV>
      <DIV><SPAN class=685542317-25032003><FONT face=Arial color=#0000ff 
      size=2>If I could reduce the sector size I could recover as much as 2GB 
of 
      space!!!</FONT></SPAN></DIV>
      <DIV><SPAN class=685542317-25032003><FONT face=Arial color=#0000ff 
      size=2>Are you folks in agreement with that and if so can I reduce the 
      sector size without reinstalling the whole system?</FONT></SPAN></DIV>
      <DIV><FONT face=Arial color=#0000ff size=2></FONT>&nbsp;</DIV>
      <DIV><FONT face=Arial color=#0000ff size=2></FONT>&nbsp;</DIV>
      <DIV align=left><FONT face=Arial size=2>Thanks,</FONT></DIV>
      <DIV align=left><FONT face=Arial size=2>Darby Moses</FONT></DIV>
      <DIV align=left><FONT face=Arial size=2>Operations</FONT></DIV>
      <DIV align=left><FONT face=Arial><FONT size=2>Leviton Mfg.<SPAN 
      
class=776185317-25032003>&nbsp;</SPAN></FONT></FONT></DIV></BLOCKQUOTE></BLOCKQUOTE></BLOCKQUOTE>
<DIV dir=ltr align=left><FONT face=Arial><FONT size=2><SPAN 
class=776185317-25032003>&lt;snip&gt;</SPAN></FONT></FONT><FONT 
face=Arial><FONT 
size=2><SPAN 
class=776185317-25032003>&nbsp;</SPAN></FONT></FONT></DIV></BODY></HTML>

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