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RE: [Veritas-bu] Any tips on tuning Win2K NetBackup clients for better =
performance?Yeah. definitely you can. But you have to use GNU tar =
command, which is coming from the NetBackup, to read the tape.=20
First, figure out the fragment number and the block size needed.
Ex:
On your NetBackup Master, find out the position of the files that you =
are restoring.
# ./bpmedialist -mcontents -ev D0004
media id =3D D0004, allocated 09/21/99 14:19:, retention level =3D 1
File number 1
Backup id =3D jeckle_0937941543
Creation date =3D 09/21/99 14:19:
Expiration date =3D 10/05/99 14:19:
Retention level =3D 1
Copy number =3D 1
Fragment number =3D 1
Block size (in bytes) =3D 32768
Then work the tape on the Solaris machine with GNU tar command ready. =
(You can copy this command from your Solaris Platform with NetBackup =
software installed. The directory is located in =
/usr/openv/netbackup/bin/ directory. ) :
home # mt -f /dev/rmt/1cbn rew (goes to beginning of tape)
home # mt -f /dev/rmt/1cbn stat (verify at beginning of tape)
Vendor 'QUANTUM ' Product 'DLT7000 ' tape drive:
sense key(0x0)=3D No Additional Sense residual=3D 0 retries=3D 0
file no=3D 0 block no=3D 0
home # mt -f /dev/rmt/1cbn fsf (position to file #1)
home # mt -f /dev/rmt/1cbn stat (verify)
Vendor 'QUANTUM ' Product 'DLT7000 ' tape drive:
sense key(0x0)=3D No Additional Sense residual=3D 0 retries=3D 0
file no=3D 1 block no=3D 0
home # mt -f /dev/rmt/1cbn fsr (position to record 1)
home # mt -f /dev/rmt/1cbn stat (verify)
Vendor 'QUANTUM ' Product 'DLT7000 ' tape drive:
sense key(0x0)=3D No Additional Sense residual=3D 0 retries=3D 0
file no=3D 1 block no=3D 1
home # /usr/openv/netbackup/bin/tar -tvf /dev/rmt/1cbn (run tar command, =
if you don't have this command, copy from other solaris machine with =
NetBackup software installed.)
Blocksize =3D 2 records
Hmm, this doesn't look like a tar archive.
Skipping to next file header...
Since the tar command didn't work in the above scenario, run the stat =
command to see what file the
tape is positioned at:
home # mt -f /dev/rmt/1cbn stat
Vendor 'QUANTUM ' Product 'DLT7000 ' tape drive:
sense key(0x0)=3D No Additional Sense residual=3D 0 retries=3D 0
file no=3D 1 block no=3D 2
home # /usr/openv/netbackup/bin/tar -tvf /dev/rmt/1cbn
Blocksize =3D 126 records
Hmm, this doesn't look like a tar archive.
Skipping to next file header...
drwxr-xr-x root/other Jul 27 09:51 1999 /
drwxr-xr-x root/sys Jul 27 07:36 1999 /etc/
drwxrwxr-x root/sys Mar 8 14:27 1999 /etc/default/
-r--r--r-- root/sys Oct 30 16:58 1996 /etc/default/sys-suspend
-r-xr-xr-x bin/bin Mar 5 12:45 1999 /etc/default/cron
-r--r--r-- bin/bin Mar 5 12:45 1999 /etc/default/fs
-r--r--r-- root/sys Mar 5 12:45 1999 /etc/default/inetinit
-r--r--r-- root/sys Mar 5 12:45 1999 /etc/default/kbd
-r--r--r-- root/sys Mar 5 12:45 1999 /etc/default/passwd
-r--r--r-- root/sys Mar 5 12:45 1999 /etc/default/tar
To get the information off of the tape execute:
/usr/openv/netbackup/bin/tar -xvf /dev/rmt/1cbn -b <BYTESIZE/512>
In this example <BYTESIZE/512> is 32768 / 512, which equals 64.
----- Original Message -----=20
From: Diaz, Gustavo=20
To: veritas-bu AT mailman.eng.auburn DOT edu=20
Sent: Thursday, February 21, 2002 11:30 AM
Subject: [Veritas-bu] Reading tar tapes from Netbackup
This may be a dumb question but, management is asking me if there is =
any way to read a tar tape created on a SUN box through Netbackup. We =
are running Netbackup Datacenter 3.4.1 on a WIN2K box with a STKL180 =
library with 4DLT8000 drives. They want to be able to read DLT tapes =
sent from customers through Netbackup and dump the contents to a =
directory.
TIA=20
Gus Diaz
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<HTML><HEAD><TITLE>RE: [Veritas-bu] Any tips on tuning Win2K NetBackup =
clients for better performance?</TITLE>
<META http-equiv=3DContent-Type content=3D"text/html; =
charset=3Diso-8859-1">
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</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><FONT face=3D"Lucida Console" size=3D2>Yeah. definitely you =
can. But you=20
have to use GNU tar command, which is coming from the NetBackup, to read =
the=20
tape. </FONT></DIV>
<DIV><FONT face=3D"Lucida Console" size=3D2></FONT> </DIV>
<DIV><FONT face=3D"Lucida Console" size=3D2> </DIV>
<DIV>First, figure out the fragment number and the block size =
needed.</DIV>
<DIV> </DIV>
<DIV>Ex:</DIV>
<DIV> </DIV>
<DIV>On your NetBackup Master, find out the position of the files that =
you are=20
restoring.</DIV>
<DIV> </DIV>
<DIV># ./bpmedialist -mcontents -ev D0004<BR>media id =3D D0004, =
allocated=20
09/21/99 14:19:, retention level =3D 1</DIV>
<DIV> </DIV>
<DIV>File number 1<BR> Backup id =3D =
jeckle_0937941543<BR> Creation date=20
=3D 09/21/99 14:19:<BR> Expiration date =3D 10/05/99 =
14:19:<BR> Retention=20
level =3D 1<BR> Copy number =3D 1<BR> Fragment number =3D =
1<BR> Block=20
size (in bytes) =3D 32768</DIV>
<DIV> </DIV>
<DIV>Then work the tape on the Solaris machine with GNU tar command =
ready. (You=20
can copy this command from your Solaris Platform with NetBackup software =
installed. The directory is located in /usr/openv/netbackup/bin/ =
directory. )=20
:</DIV>
<DIV> </DIV>
<DIV><BR>home # mt -f /dev/rmt/1cbn rew (goes to beginning of =
tape)</DIV>
<DIV> </DIV>
<DIV>home # mt -f /dev/rmt/1cbn stat (verify at beginning of tape)</DIV>
<DIV> </DIV>
<DIV>Vendor 'QUANTUM ' Product=20
'DLT7000 ' tape =
drive:<BR> sense=20
key(0x0)=3D No Additional Sense residual=3D 0 =
retries=3D=20
0<BR> file no=3D 0 block no=3D 0</DIV>
<DIV>home # mt -f /dev/rmt/1cbn fsf (position to file #1)</DIV>
<DIV> </DIV>
<DIV>home # mt -f /dev/rmt/1cbn stat (verify)<BR>Vendor 'QUANTUM ' =
Product=20
'DLT7000 ' tape =
drive:<BR> sense=20
key(0x0)=3D No Additional Sense residual=3D 0 =
retries=3D=20
0<BR> file no=3D 1 block no=3D 0</DIV>
<DIV> </DIV>
<DIV>home # mt -f /dev/rmt/1cbn fsr (position to record 1)</DIV>
<DIV> </DIV>
<DIV>home # mt -f /dev/rmt/1cbn stat (verify)<BR>Vendor 'QUANTUM ' =
Product=20
'DLT7000 ' tape =
drive:<BR> sense=20
key(0x0)=3D No Additional Sense residual=3D 0 =
retries=3D=20
0<BR> file no=3D 1 block no=3D 1</DIV>
<DIV> </DIV>
<DIV><BR>home # /usr/openv/netbackup/bin/tar -tvf /dev/rmt/1cbn (run tar =
command, if you don't have this command, copy from other solaris machine =
with=20
NetBackup software installed.)<BR>Blocksize =3D 2 records<BR>Hmm, this =
doesn't=20
look like a tar archive.<BR>Skipping to next file header...</DIV>
<DIV> </DIV>
<DIV>Since the tar command didn't work in the above scenario, run the =
stat=20
command to see what file the<BR>tape is positioned at:<BR>home # mt -f=20
/dev/rmt/1cbn stat<BR>Vendor 'QUANTUM ' Product=20
'DLT7000 ' tape =
drive:<BR> sense=20
key(0x0)=3D No Additional Sense residual=3D 0 =
retries=3D=20
0<BR> file no=3D 1 block no=3D 2</DIV>
<DIV> </DIV>
<DIV>home # /usr/openv/netbackup/bin/tar -tvf /dev/rmt/1cbn<BR>Blocksize =
=3D 126=20
records<BR>Hmm, this doesn't look like a tar archive.<BR>Skipping to =
next file=20
header...</DIV>
<DIV> </DIV>
<DIV>drwxr-xr-x root/other Jul 27 09:51 1999 /<BR>drwxr-xr-x=20
root/sys Jul 27 07:36 1999 /etc/<BR>drwxrwxr-x=20
root/sys Mar 8 14:27 1999 =
/etc/default/<BR>-r--r--r--=20
root/sys Oct 30 16:58 1996 /etc/default/sys-suspend<BR>-r-xr-xr-x=20
bin/bin Mar 5 12:45 1999 =
/etc/default/cron<BR>-r--r--r--=20
bin/bin Mar 5 12:45 1999 =
/etc/default/fs<BR>-r--r--r--=20
root/sys Mar 5 12:45 1999 =
/etc/default/inetinit<BR>-r--r--r--=20
root/sys Mar 5 12:45 1999 /etc/default/kbd<BR>-r--r--r--=20
root/sys Mar 5 12:45 1999 =
/etc/default/passwd<BR>-r--r--r--=20
root/sys Mar 5 12:45 1999 /etc/default/tar</DIV>
<DIV> </DIV>
<DIV>To get the information off of the tape=20
execute:<BR>/usr/openv/netbackup/bin/tar -xvf /dev/rmt/1cbn -b=20
<BYTESIZE/512></DIV>
<DIV> </DIV>
<DIV>In this example <BYTESIZE/512> is 32768 / 512, which equals=20
64.</FONT></DIV>
<DIV><FONT face=3D"Lucida Console" size=3D2></FONT> </DIV>
<BLOCKQUOTE dir=3Dltr=20
style=3D"PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; =
BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV style=3D"FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV=20
style=3D"BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: =
black"><B>From:</B>=20
<A title=3Dgdiaz AT hprmail DOT com href=3D"mailto:gdiaz AT hprmail DOT
com">Diaz, =
Gustavo</A>=20
</DIV>
<DIV style=3D"FONT: 10pt arial"><B>To:</B> <A=20
title=3Dveritas-bu AT mailman.eng.auburn DOT edu=20
=
href=3D"mailto:veritas-bu AT mailman.eng.auburn DOT edu">veritas-bu AT mailman
DOT eng.=
auburn.edu</A>=20
</DIV>
<DIV style=3D"FONT: 10pt arial"><B>Sent:</B> Thursday, February 21, =
2002 11:30=20
AM</DIV>
<DIV style=3D"FONT: 10pt arial"><B>Subject:</B> [Veritas-bu] Reading =
tar tapes=20
from Netbackup</DIV>
<DIV><FONT face=3D"Lucida Console" size=3D2></FONT><BR></DIV>
<DIV><SPAN class=3D223182616-21022002><FONT face=3DArial =
color=3D#0000ff size=3D2>This=20
may be a dumb question but, management is asking me if there is any =
way to=20
read a tar tape created on a SUN box through Netbackup. We are =
running=20
Netbackup Datacenter 3.4.1 on a WIN2K box with a STKL180 library with =
4DLT8000=20
drives. They want to be able to read DLT tapes sent from customers =
through=20
Netbackup and dump the contents to a directory.</FONT></SPAN></DIV>
<DIV><SPAN class=3D223182616-21022002><FONT face=3DArial =
color=3D#0000ff=20
size=3D2></FONT></SPAN> </DIV>
<DIV><SPAN class=3D223182616-21022002><FONT face=3DArial =
color=3D#0000ff size=3D2>TIA=20
</FONT></SPAN></DIV>
<DIV><SPAN class=3D223182616-21022002><FONT face=3DArial =
color=3D#0000ff size=3D2>Gus=20
Diaz</FONT></SPAN></DIV></BLOCKQUOTE></BODY></HTML>
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