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My favorite is
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iostat -cxn 5
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-----Original Message-----
From: Karl.Rossing AT Federated DOT CA [mailto:Karl.Rossing AT Federated DOT
CA]=20
Sent: Tuesday, September 16, 2003 12:22 PM
Cc: veritas-bu AT mailman.eng.auburn DOT edu
Subject: RE: [Veritas-bu] LTO drive won't run at full speed
=20
I'd agree with the use of iostat.=20
The NB admin console shows you an average KB/sec for the job while
iostat shows you at that time.=20
veritas-bu-admin AT mailman.eng.auburn DOT edu wrote on 09/16/2003 01:13:55 PM:
> I typically use iostat (specifically, iostat -x 2), which will report
> KB/sec.
>=20
> --
> Drew Fabbro [fabbro.andrew AT cnf DOT com]
> Unix Systems Group
> Desk: 503-450-3374
> Cell: 503-701-0369
>=20
>=20
> -----Original Message-----
> From: Paul Boatman [mailto:boatm005 AT groupwise.umn DOT edu]=20
> Sent: Tuesday, September 16, 2003 10:53 AM
> To: veritas-bu AT mailman.eng.auburn DOT edu; abrowne AT tigr DOT org
> Subject: Re: [Veritas-bu] LTO drive won't run at full speed
>=20
>=20
> Just curious,
>=20
> What diagnostic do you run to check the "real" drive rear/write speed.
> Also, can you do this diagnostic with Netbackup active ?
>=20
> Thanks,
>=20
> Paul
>=20
> >>> "Browne, Alec" <abrowne AT tigr DOT org> 08/14/03 01:38PM >>>
> One of our seven LTO drives will not read or write above 1.6 MB/sec.
In
> fact, it stays at exactly 1.6 MB/sec while in use. Our other drives
average
> 10MB/sec, and spike up to 20+ MB/sec. I replaced the drive, with no
effect.
> We are using NetBackup datacenter 4.5 on a Sun V880 running Solaris 8.
If
> it's not the drive, where should I start checking for the error -
media
> server, robot, or cables between?
> =20
> Thanks
> =20
> Alec Browne
> Systems Administrator
> The Institute For Genomic Research
>=20
>=20
>=20
> This e-mail and its attachments have been scanned for viruses.
OIT/NDIS -
> University of Minnesota
>=20
>=20
> _______________________________________________
> Veritas-bu maillist - Veritas-bu AT mailman.eng.auburn DOT edu
> http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
> _______________________________________________
> Veritas-bu maillist - Veritas-bu AT mailman.eng.auburn DOT edu
> http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
>=20
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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'>My favorite =
is<o:p></o:p></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'><o:p> </o:p></span></font></p>
<p class=3DMsoNormal><span class=3DSpellE><span class=3DGramE><font =
size=3D2
color=3Dnavy face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;
color:navy'>iostat</span></font></span></span><font size=3D2 =
color=3Dnavy
face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;color:navy'> –<span
class=3DSpellE>cxn</span> 5<o:p></o:p></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'><o:p> </o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
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<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
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<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
face=3DTahoma><span
style=3D'font-size:10.0pt;font-family:Tahoma'>-----Original =
Message-----<br>
<b><span style=3D'font-weight:bold'>From:</span></b> =
Karl.Rossing AT Federated DOT CA
[mailto:Karl.Rossing AT Federated DOT CA] <br>
<b><span style=3D'font-weight:bold'>Sent:</span></b> Tuesday, September =
16, 2003
12:22 PM<br>
<b><span style=3D'font-weight:bold'>Cc:</span></b>
veritas-bu AT mailman.eng.auburn DOT edu<br>
<b><span style=3D'font-weight:bold'>Subject:</span></b> RE: [Veritas-bu] =
LTO
drive won't run at full speed</span></font></p>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D3 =
face=3D"Times New Roman"><span
style=3D'font-size:12.0pt'><o:p> </o:p></span></font></p>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D3 =
face=3D"Times New Roman"><span
style=3D'font-size:12.0pt'><br>
I'd agree with the use of iostat. <br>
<br>
The NB admin console shows you an average KB/sec for the job while =
iostat shows
you at that time. <br>
<br>
</span></font><tt><font size=3D2 face=3D"Courier New"><span =
style=3D'font-size:10.0pt'>veritas-bu-admin AT mailman.eng.auburn DOT edu
wrote on 09/16/2003 01:13:55 PM:</span></font></tt><font size=3D2
face=3D"Courier New"><span =
style=3D'font-size:10.0pt;font-family:"Courier New"'><br>
<br>
<tt><font face=3D"Courier New">> I typically use iostat =
(specifically, iostat
-x 2), which will report</font></tt><br>
<tt><font face=3D"Courier New">> KB/sec.</font></tt><br>
<tt><font face=3D"Courier New">> </font></tt><br>
<tt><font face=3D"Courier New">> --</font></tt><br>
<tt><font face=3D"Courier New">> Drew Fabbro =
[fabbro.andrew AT cnf DOT com]</font></tt><br>
<tt><font face=3D"Courier New">> Unix Systems =
Group</font></tt><br>
<tt><font face=3D"Courier New">> Desk: =
503-450-3374</font></tt><br>
<tt><font face=3D"Courier New">> Cell: =
503-701-0369</font></tt><br>
<tt><font face=3D"Courier New">> </font></tt><br>
<tt><font face=3D"Courier New">> </font></tt><br>
<tt><font face=3D"Courier New">> -----Original =
Message-----</font></tt><br>
<tt><font face=3D"Courier New">> From: Paul Boatman
[mailto:boatm005 AT groupwise.umn DOT edu] </font></tt><br>
<tt><font face=3D"Courier New">> Sent: Tuesday, September 16, 2003 =
10:53 AM</font></tt><br>
<tt><font face=3D"Courier New">> To: =
veritas-bu AT mailman.eng.auburn DOT edu;
abrowne AT tigr DOT org</font></tt><br>
<tt><font face=3D"Courier New">> Subject: Re: [Veritas-bu] LTO drive =
won't run
at full speed</font></tt><br>
<tt><font face=3D"Courier New">> </font></tt><br>
<tt><font face=3D"Courier New">> </font></tt><br>
<tt><font face=3D"Courier New">> Just curious,</font></tt><br>
<tt><font face=3D"Courier New">> </font></tt><br>
<tt><font face=3D"Courier New">> What diagnostic do you run to check =
the
"real" drive rear/write speed.</font></tt><br>
<tt><font face=3D"Courier New">> Also, can you do this diagnostic =
with
Netbackup active ?</font></tt><br>
<tt><font face=3D"Courier New">> </font></tt><br>
<tt><font face=3D"Courier New">> Thanks,</font></tt><br>
<tt><font face=3D"Courier New">> </font></tt><br>
<tt><font face=3D"Courier New">> Paul</font></tt><br>
<tt><font face=3D"Courier New">> </font></tt><br>
<tt><font face=3D"Courier New">> >>> "Browne, =
Alec"
<abrowne AT tigr DOT org> 08/14/03 01:38PM >>></font></tt><br>
<tt><font face=3D"Courier New">> One of our seven LTO drives will not =
read or
write above 1.6 MB/sec. In</font></tt><br>
<tt><font face=3D"Courier New">> fact, it stays at exactly 1.6 MB/sec =
while in
use. Our other drives average</font></tt><br>
<tt><font face=3D"Courier New">> 10MB/sec, and spike up to 20+ =
MB/sec. I
replaced the drive, with no effect.</font></tt><br>
<tt><font face=3D"Courier New">> We are using NetBackup datacenter =
4.5 on a
Sun V880 running Solaris 8. If</font></tt><br>
<tt><font face=3D"Courier New">> it's not the drive, where should I =
start
checking for the error - media</font></tt><br>
<tt><font face=3D"Courier New">> server, robot, or cables =
between?</font></tt><br>
<tt><font face=3D"Courier New">> </font></tt><br>
<tt><font face=3D"Courier New">> Thanks</font></tt><br>
<tt><font face=3D"Courier New">> </font></tt><br>
<tt><font face=3D"Courier New">> Alec Browne</font></tt><br>
<tt><font face=3D"Courier New">> Systems =
Administrator</font></tt><br>
<tt><font face=3D"Courier New">> The Institute For Genomic =
Research</font></tt><br>
<tt><font face=3D"Courier New">> </font></tt><br>
<tt><font face=3D"Courier New">> </font></tt><br>
<tt><font face=3D"Courier New">> </font></tt><br>
<tt><font face=3D"Courier New">> This e-mail and its attachments have =
been
scanned for viruses. OIT/NDIS -</font></tt><br>
<tt><font face=3D"Courier New">> University of =
Minnesota</font></tt><br>
<tt><font face=3D"Courier New">> </font></tt><br>
<tt><font face=3D"Courier New">> </font></tt><br>
<tt><font face=3D"Courier New">>
_______________________________________________</font></tt><br>
<tt><font face=3D"Courier New">> Veritas-bu maillist -
Veritas-bu AT mailman.eng.auburn DOT edu</font></tt><br>
<tt><font face=3D"Courier New">>
http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu</font></tt><br>=
<tt><font face=3D"Courier New">>
_______________________________________________</font></tt><br>
<tt><font face=3D"Courier New">> Veritas-bu maillist -
Veritas-bu AT mailman.eng.auburn DOT edu</font></tt><br>
<tt><font face=3D"Courier New">>
http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu</font></tt><br>=
<tt><font face=3D"Courier New">> =
</font></tt></span></font><o:p></o:p></p>
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