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15MB/sec not compressed and 30MB/sec compressed
David
-----Mensagem original-----
De: veritas-bu-admin AT mailman.eng.auburn DOT edu
[mailto:veritas-bu-admin AT mailman.eng.auburn DOT edu]Em nome de
Dongfang_Liao AT kaltire DOT com
Enviada em: sexta-feira, 14 de janeiro de 2005 21:25
Para: tlewick AT hrblock DOT com; veritas-bu AT mailman.eng.auburn DOT edu
Assunto: RE: [Veritas-bu] Is Anyone mixing host streams across different
drive types
what's the speed can you get from your LTO1 Drives?
-----Original Message-----
From: veritas-bu-admin AT mailman.eng.auburn DOT edu
[mailto:veritas-bu-admin AT mailman.eng.auburn DOT edu]On Behalf Of Lewick,
Taylor
Sent: Friday, January 14, 2005 12:02 PM
To: veritas-bu AT mailman.eng.auburn DOT edu
Subject: [Veritas-bu] Is Anyone mixing host streams across different
drive types
So I just configured and started testing our new LTO2 tape drives, We
had/have some DLT and LTO1 drives?
And at first I didn?t see a big increase, but then I figured it was the
layout of the files I was backing up. Meaning, I wasn?t backing up a few
large files (like oradata directories), so I tested one of these
filesystems, and I am getting 40,000-45,000 KB sec speed. Needless to say I
am quite happy with that?
Does anyone out there take the time to isolate filesystems like these,
and create multiple policies for a host and a class of tape drive.
For instance, say we have host squid who is a large DB server.
Does anyone break out squid into policies like
Squid-Nightly-Full-LT02
Files?
New Stream
/u01/oradata/really-big_files
New Stream
/u02/oradata/really-big_files
Squid-Nightly-Full-LT01
Files?
New Stream
/all_other_files
NetBackup should allow you to do this in the GUI, in the NEW_STREAM
directive you should be able to specify which storage group you want to use,
although this could keep one job running for a long time if it is waiting
for a drive while another stream has finished, but a waiting job isn?t
really a bad thing?
I would imagine, this is less important to someone who has a virtual
disk library, because that extends your backup window to your tapes to
nearly 24 hours.
But if you don?t yet use backup to disk, it might be worth it to break
out a hosts filesystems to different drive types. Just curious if anyone
does this now?
Taylor
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<BODY lang=3DEN-US vLink=3Dpurple link=3Dblue>
<DIV><SPAN class=3D108210515-15012005><FONT face=3DArial color=3D#0000ff =
size=3D2>15MB/sec not compressed and 30MB/sec =
compressed</FONT></SPAN></DIV>
<DIV><SPAN class=3D108210515-15012005><FONT face=3DArial color=3D#0000ff =
size=3D2></FONT></SPAN> </DIV>
<DIV><SPAN class=3D108210515-15012005><FONT face=3DArial color=3D#0000ff =
size=3D2>David</FONT></SPAN></DIV>
<BLOCKQUOTE dir=3Dltr style=3D"MARGIN-RIGHT: 0px">
<DIV class=3DOutlookMessageHeader dir=3Dltr align=3Dleft><FONT =
face=3DTahoma=20
size=3D2>-----Mensagem original-----<BR><B>De:</B>=20
veritas-bu-admin AT mailman.eng.auburn DOT edu=20
[mailto:veritas-bu-admin AT mailman.eng.auburn DOT edu]<B>Em nome de=20
</B>Dongfang_Liao AT kaltire DOT com<BR><B>Enviada em:</B> sexta-feira, 14 de
=
janeiro=20
de 2005 21:25<BR><B>Para:</B> tlewick AT hrblock DOT com;=20
veritas-bu AT mailman.eng.auburn DOT edu<BR><B>Assunto:</B> RE: [Veritas-bu] =
Is=20
Anyone mixing host streams across different drive =
types<BR><BR></FONT></DIV>
<DIV><SPAN class=3D250142423-14012005><FONT face=3D"Comic Sans MS" =
color=3D#0000ff=20
size=3D2>what's the speed can you get from your LTO1 Drives?=20
</FONT></SPAN></DIV>
<BLOCKQUOTE dir=3Dltr style=3D"MARGIN-RIGHT: 0px">
<DIV class=3DOutlookMessageHeader dir=3Dltr align=3Dleft><FONT =
face=3DTahoma=20
size=3D2>-----Original Message-----<BR><B>From:</B>=20
veritas-bu-admin AT mailman.eng.auburn DOT edu=20
[mailto:veritas-bu-admin AT mailman.eng.auburn DOT edu]<B>On Behalf Of =
</B>Lewick,=20
Taylor<BR><B>Sent:</B> Friday, January 14, 2005 12:02 =
PM<BR><B>To:</B>=20
veritas-bu AT mailman.eng.auburn DOT edu<BR><B>Subject:</B> [Veritas-bu] Is
=
Anyone=20
mixing host streams across different drive =
types<BR><BR></FONT></DIV>
<DIV class=3DSection1>
<P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">So I just =
configured and started testing our new LTO2 tape drives, We had/have =
some=20
DLT and LTO1 drives=85</SPAN></FONT></P>
<P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">And at =
first I=20
didn=92t see a big increase, but then I figured it was the layout of =
the files=20
I was backing up. Meaning, I wasn=92t backing up a few large =
files (like=20
oradata directories), so I tested one of these filesystems, and I am =
getting=20
40,000-45,000 KB sec speed. Needless to say I am quite happy =
with=20
that=85</SPAN></FONT></P>
<P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: =
Arial"></SPAN></FONT> </P>
<P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Does =
anyone out=20
there take the time to isolate filesystems like these, and create =
multiple=20
policies for a host and a class of tape drive.</SPAN></FONT></P>
<P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: =
Arial"></SPAN></FONT> </P>
<P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">For =
instance, say=20
we have host squid who is a large DB server.</SPAN></FONT></P>
<P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: =
Arial"></SPAN></FONT> </P>
<P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Does =
anyone break=20
out squid into policies like</SPAN></FONT></P>
<P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: =
Arial"></SPAN></FONT> </P>
<P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: =
Arial">Squid-Nightly-Full-LT02</SPAN></FONT></P>
<P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: =
Arial">Files=85</SPAN></FONT></P>
<P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">New=20
Stream</SPAN></FONT></P>
<P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: =
Arial">/u01/oradata/really-big_files</SPAN></FONT></P>
<P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">New=20
Stream</SPAN></FONT></P>
<P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: =
Arial">/u02/oradata/really-big_files</SPAN></FONT></P>
<P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: =
Arial"></SPAN></FONT> </P>
<P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: =
Arial">Squid-Nightly-Full-LT01</SPAN></FONT></P>
<P class=3DMsoNormal><FONT face=3D"Times New Roman" size=3D3><SPAN=20
style=3D"FONT-SIZE: 12pt"> <FONT color=3Dnavy><SPAN=20
style=3D"COLOR: navy">Files=85</SPAN></FONT></SPAN></FONT></P>
<P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">New=20
Stream</SPAN></FONT></P>
<P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: =
Arial">/all_other_files</SPAN></FONT></P>
<P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: =
Arial"></SPAN></FONT> </P>
<P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">NetBackup =
should=20
allow you to do this in the GUI, in the NEW_STREAM directive you =
should be=20
able to specify which storage group you want to use, although this =
could=20
keep one job running for a long time if it is waiting for a drive =
while=20
another stream has finished, but a waiting job isn=92t really a bad=20
thing=85</SPAN></FONT></P>
<P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: =
Arial"></SPAN></FONT> </P>
<P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">I would =
imagine,=20
this is less important to someone who has a virtual disk library, =
because=20
that extends your backup window to your tapes to nearly 24=20
hours.</SPAN></FONT></P>
<P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">But if =
you don=92t=20
yet use backup to disk, it might be worth it to break out a hosts=20
filesystems to different drive types. Just curious if anyone =
does this=20
now?</SPAN></FONT></P>
<P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: =
Arial"></SPAN></FONT> </P>
<P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: =
Arial">Taylor</SPAN></FONT></P></DIV></BLOCKQUOTE></BLOCKQUOTE></BODY></H=
TML>
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