[Veritas-bu] Netbackup performance on SAN

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Hi all,

In a customer we installed Netbackup 3.4 on a SAN environment.There is =
an STK L700 Robotic Library. There are 4 drives (STK9840). Netbackup =
server is SUN E450(Solaris 7). There is a STK fiberswitch. On our tests, =
Netbackup mounts drives very slow(2-3 mins.) and the backup speed is =
8-9Mb/s . This is a terrible speed for SAN environment. Because STK9840 =
supports max 40mb/s. The fiber lines and switch supports 70Mb/s. The =
worse is other backup softwares like Legato and SCH Reel performs much =
much better on the same environment. For example Legato's backup speed =
is avarage 20Mb/s, SCH Reel's is 40 Mb/s. Also Reel mount very quick on =
STK 9840 drives. A backup software must mount more quick on STK9840 than =
other DLT drives. But netbackup here mounts 9840 like it is a DLT drive. =
Even worse.  None wants to buy a software backuping with the speed of 10 =
Mb/s on a 50Mb/s speed SAN environment..Even the other softwares backups =
at least with the speed of 30Mb/s. There is a big gap on performances. =
Does anyone have idea for improving the performance of Netbackup or is =
it just netbackup performs ?=20

O.  AYTUG KARALAR




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<DIV><FONT face=3DArial size=3D2>Hi all,</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>In a customer we installed Netbackup =
3.4 on a SAN=20
environment.There is an STK L700 Robotic Library. There are 4 drives =
(STK9840).=20
Netbackup server is SUN E450(Solaris 7). There is a STK fiberswitch. On =
our=20
tests, Netbackup mounts drives very slow(2-3 mins.) and the backup speed =
is=20
8-9Mb/s . This is a terrible speed for SAN environment. Because STK9840 =
supports=20
max 40mb/s. The fiber lines and switch supports 70Mb/s. The worse is =
other=20
backup softwares like Legato and SCH Reel performs much much better on =
the same=20
environment. For&nbsp;example Legato's backup speed is avarage 20Mb/s, =
SCH=20
Reel's is 40 Mb/s. Also Reel mount very quick on STK 9840 drives. A =
backup=20
software must mount more quick on STK9840 than other DLT drives. But =
netbackup=20
here mounts 9840 like it is a DLT drive. Even&nbsp;worse.&nbsp; None =
wants to=20
buy a software backuping with the speed of 10 Mb/s on a 50Mb/s speed SAN =

environment..Even the other softwares backups at least with the speed of =
30Mb/s.=20
There is a big gap on performances. Does&nbsp;anyone have&nbsp;idea for=20
improving the performance of Netbackup or is it just netbackup performs =
?=20
</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>O.&nbsp; AYTUG KARALAR</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2><BR></FONT>&nbsp;</DIV></BODY></HTML>

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