[Veritas-bu] BPDUPLICATE from disk storage to tape storage...

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We have NetBackup v4.5MP5 running on HP-UX with a Surestore 20/700 tape library 
with 4 LTO drives.  We've recently been trying backup to disk storage and then 
doing a bpduplicate from disk to tape.  Presently backups to tape we've seen 
transfer rates up to 33MB / sec.  However, doing a bpduplicate from disk to 
tape we are experiencing around 10MB /sec.  Both tape storage and disk storage 
are local to my media server.  Are their any tuning parameters out there we're 
not aware of that would enable us to get better transfer rates?  Any help would 
be appreciated.

Regards,

Randy Zimmer
Unix System Administrator
randy.k.zimmer AT monsanto DOT com
314-694-3109  (Desk)
314-294-7966  (Pager)



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<P ALIGN=3DLEFT><FONT SIZE=3D2 FACE=3D"Arial">We have NetBackup v4.5MP5 =
running on HP-UX with a Surestore 20/700 tape library with 4 LTO =
drives.&nbsp; We</FONT><FONT SIZE=3D2 FACE=3D"Arial">'</FONT><FONT =
SIZE=3D2 FACE=3D"Arial">ve recently been trying backup to disk storage =
and then doing a bpduplicate from disk to tape.&nbsp; Presently backups =
to tape</FONT> <FONT SIZE=3D2 FACE=3D"Arial">we</FONT><FONT SIZE=3D2 =
FACE=3D"Arial">'</FONT><FONT SIZE=3D2 FACE=3D"Arial">ve seen transfer =
rates up to 33MB / sec.&nbsp; However, doing a bpduplicate from disk to =
tape we are experiencing around 10MB /sec</FONT><FONT SIZE=3D2 =
FACE=3D"Arial">.&nbsp; Both tape storage and disk storage are local to =
my media server.&nbsp; Are their any tuning parameters</FONT> <FONT =
SIZE=3D2 FACE=3D"Arial">out</FONT><FONT SIZE=3D2 FACE=3D"Arial"> there =
we</FONT><FONT SIZE=3D2 FACE=3D"Arial">'</FONT><FONT SIZE=3D2 =
FACE=3D"Arial">re not aware of that would enable us to get better =
transfer rates?&nbsp; Any help would be appreciated.</FONT></P>

<P ALIGN=3DLEFT><FONT SIZE=3D2 FACE=3D"Arial">Regards,</FONT></P>

<P ALIGN=3DLEFT><A NAME=3D"_MailAutoSig"><FONT COLOR=3D"#000080">Randy =
Zimmer</FONT></A></P>

<P ALIGN=3DLEFT><FONT COLOR=3D"#000080">Unix System =
Administrator</FONT></P>

<P ALIGN=3DLEFT><FONT =
COLOR=3D"#000080">randy.k.zimmer AT monsanto DOT com</FONT></P>

<P ALIGN=3DLEFT><FONT COLOR=3D"#000080">314-694-3109&nbsp; =
(Desk)</FONT></P>

<P ALIGN=3DLEFT><FONT COLOR=3D"#000080">314-294-7966&nbsp; =
(Pager)</FONT></P>

<P ALIGN=3DLEFT></P>

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