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<p class=MsoNormal><font size=2 face="MS Sans Serif"><span style='font-size:
10.0pt;font-family:"MS Sans Serif"'>With RHEL4 </span></font> <a
href="http://people.redhat.com/jbaron/rhel4/RPMS.kernel/kernel-smp-2.6.9-17.EL.i686.rpm">kernel-smp-2.6.9-17.EL.i686.rpm</a>
and <a
href="http://people.redhat.com/agk/miscrpms/device-mapper-multipath-0.4.5-5.2.RHEL4.i386.rpm">device-mapper-multipath-0.4.5-5.2.RHEL4.i386.rpm</a>
t<font size=2 face="MS Sans Serif"><span style='font-size:10.0pt;font-family:
"MS Sans Serif"'>here is no SCSI subsystem specific agents in
/etc/hotplug/<name>.agent for handling the addition/deletion of SCSI
devices. There is file /etc/dev.d/block/multipath.dev which has to be
used for online addition/deletion of devices. Can some one explain me on how the
new SCSI device gets added/deleted using <i><span style='font-style:italic'>hotplug
</span></i> and who calls “/etc/dev.d/block/multipath.dev” for
refreshing the multipathing maps?<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face="MS Sans Serif"><span style='font-size:
10.0pt;font-family:"MS Sans Serif"'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face="MS Sans Serif"><span style='font-size:
10.0pt;font-family:"MS Sans Serif"'>Also if the device is partitioned, the new device
node (/dev/dm-*) for partitioned segment is not created until “kpartx –a
<<i><span style='font-style:italic'>whole device-name</span></i>> is
issued from the command line. Will the <i><span style='font-style:italic'>/sbin/hotplug</span></i>
be called when the device is partitioned (using fdisk)? And how to configure
hotplug to call “<i><span style='font-style:italic'>kpartx<u> </u></span></i>“
whenever a partition is added/deleted?<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face="MS Sans Serif"><span style='font-size:
10.0pt;font-family:"MS Sans Serif"'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face="MS Sans Serif"><span style='font-size:
10.0pt;font-family:"MS Sans Serif"'>Thanks and regards<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face="MS Sans Serif"><span style='font-size:
10.0pt;font-family:"MS Sans Serif"'>-Murthy<o:p></o:p></span></font></p>
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