Veritas-bu

[Veritas-bu] Inline tape copy slow

2005-12-30 11:25:52
Subject: [Veritas-bu] Inline tape copy slow
From: EFernandes AT talisman-energy DOT com (Fernandes, Eustace)
Date: Fri, 30 Dec 2005 09:25:52 -0700
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Inline tape copies are slow, our normal backups get 16 mb/sec, with
inline tape copy the speed is almost 50% slower, 8 mb/sec
Is anyone out there using inline tape copies, what speeds are you
getting, is it 50% slower?
Duplication speeds seem to be normal, i.e. 16mb/sec

My Tape Library Quantum P3000 is configured in a SAN
P3000 SDLT320 -----(Fiber Bridge FC230)---- Brocade ------ JNI HBA =20
I am trying to find out if this is normal for Inline Tape Copies, if not
then there is some tuning to do

 Eustace Fernandes
Technical Support
 <mailto:efernandes AT talisman-energy DOT com>
voice (403) 237-1534




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<P><FONT SIZE=3D2 FACE=3D"Arial">Inline tape copies are slow, our normal =
backups get 16 mb/sec, with inline tape copy the speed is almost 50% =
slower, 8 mb/sec</FONT></P>

<P><FONT SIZE=3D2 FACE=3D"Arial">Is anyone out there using inline tape =
copies, what speeds are you getting, is it 50% slower?</FONT>

<BR><FONT SIZE=3D2 FACE=3D"Arial">Duplication speeds seem to be normal, =
i.e. 16mb/sec</FONT>
</P>

<P><FONT SIZE=3D2 FACE=3D"Arial">My Tape Library Quantum P3000 is =
configured in a SAN</FONT>

<BR><FONT SIZE=3D2 FACE=3D"Arial">P3000 SDLT320 -----(Fiber Bridge =
FC230)---- Brocade ------ JNI HBA&nbsp; </FONT>

<BR><FONT SIZE=3D2 FACE=3D"Arial">I am trying to find out if this is =
normal for Inline Tape Copies, if not then there is some tuning to =
do</FONT>
</P>

<P><FONT COLOR=3D"#000080" SIZE=3D5 FACE=3D"Monotype =
Corsiva"></FONT>&nbsp;<FONT COLOR=3D"#008080" SIZE=3D4 FACE=3D"Monotype =
Corsiva">Eustace Fernandes</FONT>

<BR><B><FONT COLOR=3D"#0000FF" SIZE=3D1 FACE=3D"MS Sans Serif">Technical =
Support</FONT></B>

<BR><FONT COLOR=3D"#000080" SIZE=3D2 FACE=3D"MS Sans =
Serif">&nbsp;&lt;</FONT><U></U><A =
HREF=3D"mailto:efernandes AT talisman-energy DOT com"><U><FONT =
COLOR=3D"#0000FF" SIZE=3D2 FACE=3D"MS Sans =
Serif">mailto:efernandes AT talisman-energy DOT 
com</FONT></U><U></U></A><U></U>=
<FONT COLOR=3D"#000080" SIZE=3D2 FACE=3D"MS Sans Serif">&gt;</FONT>

<BR><B><FONT COLOR=3D"#000080" SIZE=3D1 FACE=3D"MS Sans Serif">voice =
(403) 237-1534</FONT></B>
</P>
<BR>
<BR>

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