[Veritas-bu] HPUX tape polling

This is a multi-part message in MIME format.

------_=_NextPart_001_01C6073D.761F782C
Content-Type: text/plain;
        charset="us-ascii"
Content-Transfer-Encoding: quoted-printable

Netbackup says to turn off tape monitoring for EMS (HP's Event
Monitoring Service).=20
=20
Remember, if you see the parameter at 0, but it is commented out, you
will need to uncomment it.  It takes the Global.cfg POLL_INTERVAL if it
is commented out (typically 60).  I think below is from the release
notes or install notes for 5.x:
=20
Cautions with Using the HP-UX EMS Tape Device Monitor
This is a NetBackup Enterprise Server topic.
The Tape Device Monitor (dm_stape) of the EventMonitoring System(EMS)
should be configured to not run on hosts participating in a tape
SANconfiguration. Part of the EMS service periodically polls the tape
devices to monitor their condition. When this occurs from one server
while another server is using the tape device, it may interfere with
backup operations causing those operations to time out and abort.

The problem can be avoided in either of the following ways:
    If you want to completely disable EMS you can run the
/etc/opt/resmon/lbin/monconfig tool and select (D)isable Monitoring.
    If the POLL_INTERVAL value in the
/var/stm/config/tools/monitor/dm_stape.cfg file is set to zero, EMS will
still run, but it will not log any events or poll the devices (that is,
it will not send any SCSI commands).

________________________________

From: veritas-bu-admin AT mailman.eng.auburn DOT edu
[mailto:veritas-bu-admin AT mailman.eng.auburn DOT edu] On Behalf Of Barber,
Layne (Contractor)
Sent: Thursday, December 22, 2005 1:52 PM
To: veritas-bu AT mailman.eng.auburn DOT edu
Subject: [Veritas-bu] HPUX tape polling


Is there (what is) a process under hpux 11 that periodically polls tape
drives/scsi devices?

------_=_NextPart_001_01C6073D.761F782C
Content-Type: text/html;
        charset="us-ascii"
Content-Transfer-Encoding: quoted-printable

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META http-equiv=3DContent-Type content=3D"text/html; =
charset=3Dus-ascii">
<META content=3D"MSHTML 6.00.2900.2802" name=3DGENERATOR></HEAD>
<BODY>
<DIV dir=3Dltr align=3Dleft><FONT face=3DArial size=3D2>Netbackup says =
to turn off tape=20
monitoring for EMS<SPAN class=3D381131821-22122005> (HP's Event =
Monitoring=20
Service)</SPAN>.&nbsp;</FONT></DIV>
<DIV dir=3Dltr align=3Dleft><FONT face=3D"Courier New" color=3D#0000ff=20
size=3D2></FONT>&nbsp;</DIV>
<DIV dir=3Dltr align=3Dleft><SPAN class=3D986542422-19052004><FONT =
face=3DArial><FONT=20
size=3D2>Remember, if you see the parameter at 0, but it is commented =
out, you=20
will need to uncomment it.&nbsp; It takes the Global.cfg POLL_INTERVAL =
if it is=20
commented out (typically 60).<SPAN class=3D381131821-22122005>&nbsp; I =
think below=20
is from the release notes or install notes for=20
5.x:</SPAN></FONT></FONT></SPAN></DIV>
<DIV dir=3Dltr align=3Dleft><SPAN class=3D986542422-19052004><FONT =
face=3DArial=20
size=3D2></FONT></SPAN>&nbsp;</DIV>
<DIV dir=3Dltr align=3Dleft><SPAN class=3D986542422-19052004><FONT =
face=3D"Courier New"=20
color=3D#0000ff size=3D2>Cautions with Using the HP-UX EMS Tape Device=20
Monitor<BR>This is a NetBackup Enterprise Server topic.<BR>The Tape =
Device=20
Monitor (dm_stape) of the EventMonitoring System(EMS) should be =
configured to=20
not run on hosts participating in a tape SANconfiguration. Part of the =
EMS=20
service periodically polls the tape devices to monitor their condition. =
When=20
this occurs from one server while another server is using the tape =
device, it=20
may interfere with backup operations causing those operations to time =
out and=20
abort.</FONT></SPAN></DIV>
<DIV dir=3Dltr align=3Dleft><SPAN class=3D986542422-19052004><FONT =
face=3D"Courier New"=20
color=3D#0000ff size=3D2><BR>The problem can be avoided in either of the =
following=20
ways:<BR>&nbsp;&nbsp;&nbsp; If you want to completely disable EMS you =
can run=20
the<BR>/etc/opt/resmon/lbin/monconfig tool and select (D)isable=20
Monitoring.<BR><STRONG>&nbsp;&nbsp;&nbsp; If the POLL_INTERVAL value in=20
the<BR>/var/stm/config/tools/monitor/dm_stape.cfg file is set to zero, =
EMS=20
will<BR>still run, but it will not log any events or poll the devices =
(that is,=20
it will not send any SCSI commands).</STRONG></FONT></SPAN></DIV><BR>
<DIV class=3DOutlookMessageHeader lang=3Den-us dir=3Dltr align=3Dleft>
<HR tabIndex=3D-1>
<FONT face=3DTahoma size=3D2><B>From:</B> =
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>Barber,=20
Layne (Contractor)<BR><B>Sent:</B> Thursday, December 22, 2005 1:52=20
PM<BR><B>To:</B> veritas-bu AT mailman.eng.auburn DOT edu<BR><B>Subject:</B>=20
[Veritas-bu] HPUX tape polling<BR></FONT><BR></DIV>
<DIV></DIV>
<DIV><SPAN class=3D284575020-22122005><FONT face=3DArial size=3D2>Is =
there (what is) a=20
process under hpux 11 that periodically polls tape drives/scsi=20
devices?</FONT></SPAN></DIV></BODY></HTML>

------_=_NextPart_001_01C6073D.761F782C--