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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...
=20
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.
=20
For instance, say we have host squid who is a large DB server.
=20
Does anyone break out squid into policies like
=20
Squid-Nightly-Full-LT02
Files...
New Stream
/u01/oradata/really-big_files
New Stream
/u02/oradata/really-big_files
=20
Squid-Nightly-Full-LT01
Files...
New Stream
/all_other_files
=20
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...
=20
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?
=20
Taylor
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<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>So I just configured and started =
testing
our new LTO2 tape drives, We had/have some DLT and LTO1 =
drives…</span></font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>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…</span></font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'> </span></font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>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.</span></font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'> </span></font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>For instance, say we have host =
squid who
is a large DB server.</span></font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'> </span></font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>Does anyone break out squid into =
policies like</span></font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'> </span></font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>Squid-Nightly-Full-LT02</span></font=
></p>
<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>Files…</span></font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>New Stream</span></font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>/u01/oradata/really-big_files</span>=
</font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>New Stream</span></font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>/u02/oradata/really-big_files</span>=
</font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'> </span></font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>Squid-Nightly-Full-LT01</span></font=
></p>
<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt'> <font color=3Dnavy><span =
style=3D'color:navy'>Files…</span></font></span></font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>New Stream</span></font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>/all_other_files</span></font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'> </span></font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>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…</span></font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'> </span></font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>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.</span></font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>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?</span></font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'> </span></font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>Taylor</span></font></p>
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