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1.) There doesn't seem to be any job stats. How do you get drive speed
stats? *we are going to eval aptare, so maybe i can get stats from that.
-No answer for you there. I have a script that checks for how
much room is actually available, but no speeds and feeds.
=20
2.) It appears that the data isn't removed from the Disk Stage. When
does the data get removed when doing a manual relocation?=20
- It is removed when there isn't enough room for new images -
FIFO. The advantage to this is restores from disk don't have to wait
for tape mounts, positioning etc. Disadvantage is sometimes its hard to
tell how much space is really there.
3.) It appears that only one tape drive gets used. I guess i'll have to
split the other jobs to another disk stage to get both drives working?
- You are correct.
=20
4.) Does 5.1 do a better job than 5.0 when it comes to the issues listed
above?=20
- nope.
=20
=20
________________________________
From: veritas-bu-admin AT mailman.eng.auburn DOT edu
[mailto:veritas-bu-admin AT mailman.eng.auburn DOT edu] On Behalf Of
Karl.Rossing AT Federated DOT CA
Sent: Monday, August 29, 2005 2:42 PM
To: Veritas List
Subject: [Veritas-bu] Disk Staging Sanity Check
Hi,=20
We are currently running netbackup 5.0MP5. We have two LTO2 drives that
accept one stream each. We don't want to multiplex.=20
I'd like to use Disk Staging to speed up the backup.=20
There are a couple of things i noticed when doing a manual relocation.=20
1.) There doesn't seem to be any job stats. How do you get drive speed
stats? *we are going to eval aptare, so maybe i can get stats from that.
2.) It appears that the data isn't removed from the Disk Stage. When
does the data get removed when doing a manual relocation?=20
3.) It appears that only one tape drive gets used. I guess i'll have to
split the other jobs to another disk stage to get both drives working?
4.) Does 5.1 do a better job than 5.0 when it comes to the issues listed
above?=20
Thanks=20
Karl
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<BODY>
<DIV dir=3Dltr align=3Dleft><FONT face=3D"Courier New" size=3D2><FONT =
face=3DArial>1.)=20
There doesn't seem to be any job stats. How do you get drive speed =
stats? *we=20
are going to eval aptare, so maybe i can get stats from =
that.</FONT><FONT=20
face=3D"Times New Roman" size=3D3> <BR></FONT><FONT =
face=3DArial><SPAN=20
class=3D460560222-29082005> -No answer for =
you=20
there. I have a script that checks for how much room is actually=20
available, but no speeds and feeds.</SPAN></FONT></FONT></DIV>
<DIV dir=3Dltr align=3Dleft><FONT face=3D"Courier New" color=3D#0000ff =
size=3D2><FONT=20
color=3D#000000><FONT face=3Dsans-serif =
size=3D2></FONT></FONT></FONT> </DIV>
<DIV dir=3Dltr align=3Dleft><FONT face=3D"Courier New" color=3D#0000ff =
size=3D2><FONT=20
color=3D#000000><FONT face=3Dsans-serif size=3D2>2.) It appears that the =
data isn't=20
removed from the Disk Stage. When does the data get removed when doing a =
manual=20
relocation?</FONT></FONT><FONT face=3D"Times New Roman" color=3D#000000 =
size=3D3>=20
</FONT></FONT></DIV>
<DIV><FONT><FONT face=3DArial size=3D2><SPAN=20
class=3D460560222-29082005> - It is =
removed when=20
there isn't enough room for new images - FIFO. The advantage to =
this is=20
restores from disk don't have to wait for tape mounts, positioning =
etc. =20
Disadvantage is sometimes its hard to tell how much space is really=20
there.</SPAN></FONT></FONT><FONT face=3D"Courier New" color=3D#0000ff =
size=3D2><FONT=20
face=3D"Times New Roman" color=3D#000000 size=3D3></DIV><FONT =
face=3D"Courier New"=20
color=3D#0000ff size=3D2></FONT>
<DIV dir=3Dltr align=3Dleft><BR></FONT><FONT color=3D#000000><FONT =
face=3Dsans-serif>3.)=20
It appears that only one tape drive gets used. I guess i'll have to =
split the=20
other jobs to another disk stage to get both drives =
working?</FONT></FONT></DIV>
<DIV><FONT><FONT face=3DArial color=3D#000000><SPAN=20
class=3D460560222-29082005> - You =
are=20
correct.</SPAN></FONT></FONT></DIV>
<DIV><FONT color=3D#000000><FONT><FONT =
color=3D#0000ff></FONT> </DIV>
<DIV dir=3Dltr align=3Dleft>4.) Does 5.1 do a better job than 5.0 when =
it comes to=20
the issues listed above?</FONT> </FONT><BR><SPAN=20
class=3D460560222-29082005> - nope.</SPAN></DIV>
<DIV dir=3Dltr align=3Dleft><SPAN =
class=3D460560222-29082005></SPAN> </DIV>
<DIV dir=3Dltr align=3Dleft><SPAN=20
class=3D460560222-29082005></SPAN> </DIV></FONT><BR>
<DIV class=3DOutlookMessageHeader lang=3Den-us dir=3Dltr align=3Dleft>
<HR tabIndex=3D-1>
<FONT face=3DTahoma size=3D2><B>From:</B> =
veritas-bu-admin AT mailman.eng.auburn DOT edu=20
[mailto:veritas-bu-admin AT mailman.eng.auburn DOT edu] <B>On Behalf Of=20
</B>Karl.Rossing AT Federated DOT CA<BR><B>Sent:</B> Monday, August 29, 2005 =
2:42=20
PM<BR><B>To:</B> Veritas List<BR><B>Subject:</B> [Veritas-bu] Disk =
Staging=20
Sanity Check<BR></FONT><BR></DIV>
<DIV></DIV><BR><FONT face=3Dsans-serif size=3D2>Hi,</FONT> <BR><BR><FONT =
face=3Dsans-serif size=3D2>We are currently running netbackup 5.0MP5. We =
have two=20
LTO2 drives that accept one stream each. We don't want to =
multiplex.</FONT>=20
<BR><BR><FONT face=3Dsans-serif size=3D2>I'd like to use Disk Staging =
to speed=20
up the backup.</FONT> <BR><BR><FONT face=3Dsans-serif size=3D2>There are =
a couple of=20
things i noticed when doing a manual relocation.</FONT> <BR><FONT=20
face=3Dsans-serif size=3D2>1.) There doesn't seem to be any job stats. =
How do you=20
get drive speed stats? *we are going to eval aptare, so maybe i can get =
stats=20
from that.</FONT> <BR><FONT face=3Dsans-serif size=3D2>2.) It appears =
that the data=20
isn't removed from the Disk Stage. When does the data get removed when =
doing a=20
manual relocation?</FONT> <BR><FONT face=3Dsans-serif size=3D2>3.) It =
appears that=20
only one tape drive gets used. I guess i'll have to split the other jobs =
to=20
another disk stage to get both drives working?<BR>4.) Does 5.1 do a =
better job=20
than 5.0 when it comes to the issues listed above?</FONT> <BR><BR><FONT=20
face=3Dsans-serif size=3D2>Thanks</FONT> <BR><FONT face=3Dsans-serif=20
size=3D2>Karl</FONT></BODY></HTML>
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