[Veritas-bu] compression to disk staging unit

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Bob
My guess would be yes - as I do not see what benefit you get if you are
trying to software compress if the hardware compression is also in place.
And I think the compression in NBU will only compress what it feels it can.

Regards

Simon Weaver
3rd Line Technical Support
Windows Domain Administrator 

EADS Astrium Limited, B32AA IM (DCS)
Anchorage Road, Portsmouth, PO3 5PU

Email:  <mailto:Simon.Weaver AT Astrium-eads DOT net> Simon.Weaver AT 
Astrium-eads DOT net

-----Original Message-----
From: Bob Stump [mailto:stumpb AT michigan DOT gov] 
Sent: 19 May 2006 15:42
To: veritas-bu AT mailman.eng.auburn DOT edu
Subject: [Veritas-bu] compression to disk staging unit


Is it wrong to use software compression in a policy that uses a disk staging
unit for the storage unit? 
Will this result in slower migration or negative compression during the
migration phase to a tape drive that uses hardware compression?



This email is for the intended addressee only.
If you have received it in error then you must not use, retain, disseminate or 
otherwise deal with it.
Please notify the sender by return email.
The views of the author may not necessarily constitute the views of EADS 
Astrium Limited.
Nothing in this email shall bind EADS Astrium Limited in any contract or 
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EADS Astrium Limited, Registered in England and Wales No. 2449259
Registered Office: Gunnels Wood Road, Stevenage, Hertfordshire, SG1 2AS, England
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<DIV><SPAN class=928064714-19052006>Bob</SPAN></DIV>
<DIV><SPAN class=928064714-19052006>My guess would be yes - as I do not see 
what 
benefit you get if you are trying to software compress if the hardware 
compression is also in place.</SPAN></DIV>
<DIV><SPAN class=928064714-19052006>And I think the compression in NBU will 
only 
compress what it feels it can.</SPAN></DIV>
<P align=left><SPAN lang=en-gb><EM><FONT color=#3f6296><FONT face=Arial><FONT 
color=#0000ff>Regards</FONT></FONT></FONT></EM></SPAN></P>
<P align=left><SPAN lang=en-gb><EM><FONT color=#3f6296><FONT face=Arial><FONT 
color=#0000ff>Simon Weaver</FONT><BR></FONT></FONT><FONT face=Arial 
color=#0000a0><STRONG>3rd Line Technical Support<BR>Windows Domain 
Administrator</STRONG></FONT></EM><FONT face=Arial> </FONT></SPAN></P>
<P><SPAN lang=en-gb><I><FONT face=Arial color=#0000ff>EADS Astrium Limited, 
B32AA IM (DCS)</FONT></I></SPAN><SPAN lang=en-gb><BR><FONT face=Arial 
color=#0000ff><EM>Anchorage Road, Portsmouth, PO3 5PU</EM></FONT></SPAN></P>
<P><SPAN lang=en-gb><FONT face=Arial color=#0000ff><EM>Email: </EM></FONT><A 
href="mailto:Simon.Weaver AT Astrium-eads DOT net"><FONT 
face=Arial><EM>Simon.Weaver AT Astrium-eads DOT net</EM></FONT></A></SPAN></P>
<BLOCKQUOTE dir=ltr style="MARGIN-RIGHT: 0px">
  <DIV></DIV>
  <DIV class=OutlookMessageHeader lang=en-us dir=ltr align=left><FONT 
  face=Tahoma>-----Original Message-----<BR><B>From:</B> Bob Stump 
  [mailto:stumpb AT michigan DOT gov] <BR><B>Sent:</B> 19 May 2006 
15:42<BR><B>To:</B> 
  veritas-bu AT mailman.eng.auburn DOT edu<BR><B>Subject:</B> [Veritas-bu] 
compression 
  to disk staging unit<BR><BR></FONT></DIV>
  <DIV>Is it wrong to use software compression in a policy that&nbsp;uses a 
disk 
  staging unit for the storage unit? </DIV>
  <DIV>Will this result in slower migration or negative compression during the 
  migration phase to a tape drive that uses hardware 
compression?</DIV></BLOCKQUOTE></BODY></HTML>

<table><tr><td bgcolor=#ffffff><font color=#000000>This email is for the 
intended addressee only.<br>
If you have received it in error then you must not use, retain, disseminate or 
otherwise deal with it.<br>
Please notify the sender by return email.<br>
The views of the author may not necessarily constitute the views of EADS 
Astrium Limited.<br>
Nothing in this email shall bind EADS Astrium Limited in any contract or 
obligation.<br>
<br>
EADS Astrium Limited, Registered in England and Wales No. 2449259<br>
Registered Office: Gunnels Wood Road, Stevenage, Hertfordshire, SG1 2AS, 
England<br>
</font></td></tr></table>
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